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AK: Add an exact and fast floating point parsing algorithm
This is based on the paper by Daniel Lemire called "Number parsing at a Gigabyte per second", currently available at https://arxiv.org/abs/2101.11408 An implementation can be found at https://github.com/fastfloat/fast_float To support both strtod like methods and String::to_double we have two different APIs. The parse_first_floating_point gives back both the result, next character to read and the error/out of range status. Out of range here means we rounded to infinity 0. The other API, parse_floating_point_completely, will return a floating point only if the given character range contains just the floating point and nothing else. This can be much faster as we can skip actually computing the value if we notice we did not parse the whole range. Both of these APIs support a very lenient format to be usable in as many places as possible. Also it does not check for "named" values like "nan", "inf", "NAN" etc. Because this can be different for every usage. For integers and small values this new method is not faster and often even a tiny bit slower than the current strtod implementation. However the strtod implementation is wrong for a lot of values and has a much less predictable running time. For correctness this method was tested against known string -> double datasets from https://github.com/nigeltao/parse-number-fxx-test-data This method gives 100% accuracy. The old strtod gave an incorrect value in over 50% of the numbers tested.
This commit is contained in:
davidot
Linus Groh
parent
bf6d4a5cbf
commit
53b7f5e6a1
Notes:
sideshowbarker
2024-07-17 20:58:35 +09:00
Author: https://github.com/davidot Commit: https://github.com/SerenityOS/serenity/commit/53b7f5e6a1 Pull-request: https://github.com/SerenityOS/serenity/pull/15377 Issue: https://github.com/SerenityOS/serenity/issues/14691 Reviewed-by: https://github.com/ADKaster Reviewed-by: https://github.com/AtkinsSJ Reviewed-by: https://github.com/linusg
5 changed files with 2500 additions and 0 deletions
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@ -1,6 +1,7 @@
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set(AK_SOURCES
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Assertions.cpp
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Base64.cpp
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FloatingPointStringConversions.cpp
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FlyString.cpp
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Format.cpp
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FuzzyMatch.cpp
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2018
AK/FloatingPointStringConversions.cpp
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2018
AK/FloatingPointStringConversions.cpp
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File diff suppressed because it is too large
Load diff
68
AK/FloatingPointStringConversions.h
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AK/FloatingPointStringConversions.h
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@ -0,0 +1,68 @@
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/*
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* Copyright (c) 2022, David Tuin <davidot@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#ifdef KERNEL
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# error This file should not be included in the KERNEL as it deals with doubles \
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and there is no guraantee does not do any floating point computations.
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#endif
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#include <AK/StringView.h>
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namespace AK {
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static constexpr char floating_point_decimal_separator = '.';
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enum class FloatingPointError {
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None,
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NoOrInvalidInput,
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OutOfRange,
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RoundedDownToZero
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};
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template<FloatingPoint T>
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struct FloatingPointParseResults {
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char const* end_ptr { nullptr };
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FloatingPointError error = FloatingPointError::None;
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T value {};
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[[nodiscard]] bool parsed_value() const
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{
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// All other errors do indicate out of range but did produce a valid value.
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return error != FloatingPointError::NoOrInvalidInput;
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}
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};
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/// This function finds the first floating point within [start, end). The accepted format is
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/// intentionally as lenient as possible. If your format is stricter you must validate it
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/// first. The format accepts:
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/// - An optional sign, both + and - are supported
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/// - 0 or more decimal digits, with leading zeros allowed [1]
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/// - A decimal point '.', which can have no digits after it
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/// - 0 or more decimal digits, unless the first digits [1] doesn't have any digits,
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/// then this must have at least one
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/// - An exponent 'e' or 'E' followed by an optional sign '+' or '-' and at least one digit
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/// This function additionally detects out of range values which have been rounded to
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/// [-]infinity or 0 and gives the next character to read after the floating point.
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template<FloatingPoint T = double>
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FloatingPointParseResults<T> parse_first_floating_point(char const* start, char const* end);
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/// This function finds the first floating point starting at start up to the first '\0'.
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/// The format is identical to parse_first_floating_point above.
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template<FloatingPoint T = double>
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FloatingPointParseResults<T> parse_first_floating_point_until_zero_character(char const* start);
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/// This function will return either a floating point, or an empty optional if the given StringView
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/// does not a floating point or contains more characters beyond the floating point. For the format
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/// check the comment on parse_first_floating_point.
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template<FloatingPoint T = double>
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Optional<T> parse_floating_point_completely(char const* start, char const* end);
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}
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using AK::parse_first_floating_point;
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using AK::parse_floating_point_completely;
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@ -27,6 +27,7 @@ set(AK_TEST_SOURCES
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TestFind.cpp
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TestFixedArray.cpp
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TestFloatingPoint.cpp
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TestFloatingPointParsing.cpp
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TestFormat.cpp
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TestGenericLexer.cpp
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TestHashFunctions.cpp
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412
Tests/AK/TestFloatingPointParsing.cpp
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412
Tests/AK/TestFloatingPointParsing.cpp
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@ -0,0 +1,412 @@
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/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <AK/FloatingPointStringConversions.h>
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static double parse_complete_double(StringView view)
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{
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char const* start = view.characters_without_null_termination();
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return parse_floating_point_completely<double>(start, start + view.length()).release_value();
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}
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static float parse_complete_float(StringView view)
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{
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char const* start = view.characters_without_null_termination();
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return parse_floating_point_completely<float>(start, start + view.length()).release_value();
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}
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TEST_CASE(simple_cases)
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{
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#define DOES_PARSE_DOUBLE_LIKE_CPP(value) \
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do { \
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EXPECT_EQ(static_cast<double>(value), parse_complete_double(#value##sv)); \
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EXPECT_EQ(-static_cast<double>(value), parse_complete_double("-" #value##sv)); \
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} while (false)
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#define DOES_PARSE_FLOAT_LIKE_CPP(value) \
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do { \
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float val = parse_complete_float(#value##sv); \
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EXPECT_EQ(static_cast<float>(value##f), val); \
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EXPECT_EQ(-static_cast<float>(value##f), parse_complete_float("-" #value##sv)); \
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} while (false)
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#define DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(value) \
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DOES_PARSE_DOUBLE_LIKE_CPP(value); \
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DOES_PARSE_FLOAT_LIKE_CPP(value);
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DOES_PARSE_DOUBLE_LIKE_CPP(2.22507385850720138309e-308);
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(10090518465521146875.);
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(10052108125844341766.);
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(0.);
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constexpr u64 negative_zero = 1ull << 63;
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EXPECT_EQ(0ull, bit_cast<u64>(parse_complete_double("0"sv)));
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EXPECT_EQ(negative_zero, bit_cast<u64>(parse_complete_double("-0"sv)));
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EXPECT_EQ(negative_zero, bit_cast<u64>(parse_complete_double("-0."sv)));
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EXPECT_EQ(negative_zero, bit_cast<u64>(parse_complete_double("-0.0"sv)));
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DOES_PARSE_DOUBLE_LIKE_CPP(2.2222222222223e-322);
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DOES_PARSE_DOUBLE_LIKE_CPP(2.2250738585072013e-308);
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.0);
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DOES_PARSE_DOUBLE_LIKE_CPP(0.54e-85);
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DOES_PARSE_DOUBLE_LIKE_CPP(123);
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DOES_PARSE_DOUBLE_LIKE_CPP(1e10);
|
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(001234.0);
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(123.456);
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(0.456);
|
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(0.456);
|
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(0.45689544977495495495197116546843576574949654);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0.45689544977495495495197116546843576574949654e81);
|
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DOES_PARSE_DOUBLE_LIKE_CPP(0.45689544977495495495197116546843576574949654e-81);
|
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.2057594037927933e+8);
|
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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(234532.3426362);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(860228122.6654514319E+90);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009195);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009200);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009199);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009198);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009208);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009204);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009200);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009201);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009202);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009203);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009205);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009206);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000000000000000001);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009196);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009115);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(692949564460091155);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(6929495644600911557);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.0420557077594588669468784357561207962098443483187940792729600000e+59);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.0420557077594588669468784357561207962098443483187940792729600000e+59);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.7339253062092163730578609458683877051596800000000000000000000000e+42);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.0972622234386619214559824785284023792871122537545728000000000000e+52);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.0001803374372191849407179462120053338028379051879898808320000000e+57);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.8607245283054342363818436991534856973992070520151142825984000000e+58);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.9189205311132686907264385602245237137907390376574976000000000000e+52);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.8184483231688951563253238886553506793085187889855201280000000000e+54);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.7664960224650106892054063261344555646357024359107788800000000000e+53);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.1470977154320536489471030463761883783915110400000000000000000000e+45);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.4900312744003159009338275160799498340862630046359789166919680000e+61);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.2222222222223e-322);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(860228122.6654514319E+90);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.9406564584124653e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.9406564584124654e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.2250738585072009e-308);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.2250738585072014e-308);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.7976931348623157e308);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.7976931348623158e308);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000044501477170144022721148195934182639518696390927032912960468522194496444440421538910330590478162701758282983178260792422137401728773891892910553144148156412434867599762821265346585071045737627442980259622449029037796981144446145705102663115100318287949527959668236039986479250965780342141637013812613333119898765515451440315261253813266652951306000184917766328660755595837392240989947807556594098101021612198814605258742579179000071675999344145086087205681577915435923018910334964869420614052182892431445797605163650903606514140377217442262561590244668525767372446430075513332450079650686719491377688478005309963967709758965844137894433796621993967316936280457084866613206797017728916080020698679408551343728867675409720757232455434770912461317493580281734466552734375);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000022250738585072008890245868760858598876504231122409594654935248025624400092282356951787758888037591552642309780950434312085877387158357291821993020294379224223559819827501242041788969571311791082261043971979604000454897391938079198936081525613113376149842043271751033627391549782731594143828136275113838604094249464942286316695429105080201815926642134996606517803095075913058719846423906068637102005108723282784678843631944515866135041223479014792369585208321597621066375401613736583044193603714778355306682834535634005074073040135602968046375918583163124224521599262546494300836851861719422417646455137135420132217031370496583210154654068035397417906022589503023501937519773030945763173210852507299305089761582519159720757232455434770912461317493580281734466552734375);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.1);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.0000000000000000000000000000000000000000000000000);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.0000000000000000000000000000000000000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740993.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009007199254740993.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009007199254740993.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001);
|
||||
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.17549414062751785924617589866280818433124586473279624003138594271817467598606476997247227700427174568176269531250000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e-38);
|
||||
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858369.);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231579999999999999999999999999999999999999999917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231580000000000000000000000000000000000000000000000000057260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231580790000000000000000000000000000000000000000000000057260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231580793700000000000000000000000000000000000000000000057260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.);
|
||||
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.2057594037927933e+16);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.3177701707893310e+15);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.2523296908380055e94);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.2523296908380052e94);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(6865415254.161212);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.9406564584124654416987984e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(4.94065645841246544177987491e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1.4821969375237396325297063786046641170951794078429742932767570475020265218106262555958995090849079771393896940863371531927799701310678193891963243880323456343789021395709342135835374515035469463110661559081709961921691500191622274606949531619374201918195088454200951461561942223787156967735130799756700603045611186809318747958358147744773659879163696332033824403891299986257959682272412496899735742714436070441803404780657158346504044105794804160581370804321322475109996680534260007162497295808277148680375104180318034518509429259235026831954987743714947574192329127781743623968254334611203409098600941053918033152755376981653597394514673304353113588214501752867512169200796980994429823492617107911270837728302633695687262616047519259154796600341796875e-323);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0.14821969375237396325297063786046641170951794078429742932767570475020265218106262555958995090849079771393896940863371531927799701310678193891963243880323456343789021395709342135835374515035469463110661559081709961921691500191622274606949531619374201918195088454200951461561942223787156967735130799756700603045611186809318747958358147744773659879163696332033824403891299986257959682272412496899735742714436070441803404780657158346504044105794804160581370804321322475109996680534260007162497295808277148680375104180318034518509429259235026831954987743714947574192329127781743623968254334611203409098600941053918033152755376981653597394514673304353113588214501752867512169200796980994429823492617107911270837728302633695687262616047519259154796600341796875e-322);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0000000000000000000000000000.14821969375237396325297063786046641170951794078429742932767570475020265218106262555958995090849079771393896940863371531927799701310678193891963243880323456343789021395709342135835374515035469463110661559081709961921691500191622274606949531619374201918195088454200951461561942223787156967735130799756700603045611186809318747958358147744773659879163696332033824403891299986257959682272412496899735742714436070441803404780657158346504044105794804160581370804321322475109996680534260007162497295808277148680375104180318034518509429259235026831954987743714947574192329127781743623968254334611203409098600941053918033152755376981653597394514673304353113588214501752867512169200796980994429823492617107911270837728302633695687262616047519259154796600341796875e-322);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0000000000000000000000000000.000000000014821969375237396325297063786046641170951794078429742932767570475020265218106262555958995090849079771393896940863371531927799701310678193891963243880323456343789021395709342135835374515035469463110661559081709961921691500191622274606949531619374201918195088454200951461561942223787156967735130799756700603045611186809318747958358147744773659879163696332033824403891299986257959682272412496899735742714436070441803404780657158346504044105794804160581370804321322475109996680534260007162497295808277148680375104180318034518509429259235026831954987743714947574192329127781743623968254334611203409098600941053918033152755376981653597394514673304353113588214501752867512169200796980994429823492617107911270837728302633695687262616047519259154796600341796875e-312);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(6.422853395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(6.522853395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.522853395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.5228498395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(0.5228498395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323);
|
||||
|
||||
// actual interesting (non 19+ digit) failures from current strtod'
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e126);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e210);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(358416272e-33);
|
||||
|
||||
// FIXME: These are different in 32 bit, since that will be removed some time (soon?)
|
||||
// we can remove this guard at that point.
|
||||
#if not defined(__serenity__) || not ARCH(I386)
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(89255e-22);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8925.5e-21);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8.9255e-18);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8925500e-24);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(89256e-22);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(89254e-22);
|
||||
#endif
|
||||
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(3.518437208883201171875e13);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(62.5364939768271845828);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8.10109172351e-10);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.50000000000000011102230246251565404236316680908203125);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740991.4999999999999999999999999999999995);
|
||||
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984375001e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984375e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984374999e-324);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328125001e-324);
|
||||
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(2.22507385850720138309e-308);
|
||||
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e55);
|
||||
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e300);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e301);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e302);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e303);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e304);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e305);
|
||||
DOES_PARSE_DOUBLE_LIKE_CPP(1e299);
|
||||
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(3.4028235E38);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(4e31);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740991.);
|
||||
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.038531E-26);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(46116538.);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(20040229.);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9771305410219737088.);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1146.);
|
||||
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.0064923216240854e-46);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.1877630352973938);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(2.1665680640000002384185791015625e9);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8.589934335999999523162841796875e+09);
|
||||
DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(0.09289376810193062);
|
||||
|
||||
#define DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(value) \
|
||||
do { \
|
||||
EXPECT_EQ(static_cast<double>(value##.), parse_complete_double(#value##sv)); \
|
||||
EXPECT_EQ(-static_cast<double>(value##.), parse_complete_double("-" #value##sv)); \
|
||||
} while (false)
|
||||
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(0);
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(1);
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(2);
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(20);
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(200);
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(234);
|
||||
DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(8419841);
|
||||
|
||||
EXPECT_EQ(67677557565221539913., parse_complete_double("67677557565221539913"sv));
|
||||
EXPECT_EQ(0., parse_complete_double("2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328125e-324"sv));
|
||||
EXPECT_EQ(0., parse_complete_double("2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328124999e-324"sv));
|
||||
|
||||
#define EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(expected_val, str) \
|
||||
EXPECT_EQ(bit_cast<u64>(expected_val), bit_cast<u64>(parse_complete_double(str##sv)));
|
||||
|
||||
EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(0., "1e-324");
|
||||
EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(-0., "-1e-324");
|
||||
EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(.09289376810193062, "+.09289376810193062");
|
||||
EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(-.09289376810193062, "-.09289376810193062");
|
||||
EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(0., "+.0e10");
|
||||
EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(-0., "-.0e10");
|
||||
|
||||
#define EXPECT_TO_PARSE_TO_INFINITY(str) \
|
||||
EXPECT_EQ(__builtin_huge_val(), parse_complete_double(str##sv)); \
|
||||
EXPECT_EQ(__builtin_huge_val(), parse_complete_double("+" str##sv)); \
|
||||
EXPECT_EQ(-__builtin_huge_val(), parse_complete_double("-" str##sv)); \
|
||||
EXPECT_EQ(static_cast<float>(__builtin_huge_valf()), parse_complete_float(str##sv)); \
|
||||
EXPECT_EQ(static_cast<float>(__builtin_huge_valf()), parse_complete_float("+" str##sv)); \
|
||||
EXPECT_EQ(static_cast<float>(-__builtin_huge_valf()), parse_complete_float("-" str##sv))
|
||||
|
||||
EXPECT_TO_PARSE_TO_INFINITY("123.456e789");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("123456.456789e789");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("1438456663141390273526118207642235581183227845246331231162636653790368152091394196930365828634687637948157940776599182791387527135353034738357134110310609455693900824193549772792016543182680519740580354365467985440183598701312257624545562331397018329928613196125590274187720073914818062530830316533158098624984118889298281371812288789537310599037529113415438738954894752124724983067241108764488346454376699018673078404751121414804937224240805993123816932326223683090770561597570457793932985826162604255884529134126396282202126526253389383421806727954588525596114379801269094096329805054803089299736996870951258573010877404407451953846698609198213926882692078557033228265259305481198526059813164469187586693257335779522020407645498684263339921905227556616698129967412891282231685504660671277927198290009824680186319750978665734576683784255802269708917361719466043175201158849097881370477111850171579869056016061666173029059588433776015644439705050377554277696143928278093453792803846252715966016733222646442382892123940052441346822429721593884378212558701004356924243030059517489346646577724622498919752597382095222500311124181823512251071356181769376577651390028297796156208815375089159128394945710515861334486267101797497111125909272505194792870889617179758703442608016143343262159998149700606597792535574457560429226974273443630323818747730771316763398572110874959981923732463076884528677392654150010269822239401993427482376513231389212353583573566376915572650916866553612366187378959554983566712767093372906030188976220169058025354973622211666504549316958271880975697143546564469806791358707318873075708383345004090151974068325838177531266954177406661392229801349994695941509935655355652985723782153570084089560139142231.738475042362596875449154552392299548947138162081694168675340677843807613129780449323363759027012972466987370921816813162658754726545121090545507240267000456594786540949605260722461937870630634874991729398208026467698131898691830012167897399682179601734569071423681e-733");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("3e182947912346759234");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("3e70000000000000");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("3e70000000000");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("3e70000000");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("1e681");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("7e312");
|
||||
EXPECT_TO_PARSE_TO_INFINITY("184467440737095516151234567890e2147483639");
|
||||
}
|
||||
|
||||
TEST_CASE(partial_parse_stops_at_right_spot)
|
||||
{
|
||||
#define EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS(string_value, double_value, chars_parsed) \
|
||||
do { \
|
||||
StringView view = string_value##sv; \
|
||||
char const* start = view.characters_without_null_termination(); \
|
||||
auto result = parse_first_floating_point<double>(start, start + view.length()); \
|
||||
EXPECT(result.error == AK::FloatingPointError::None); \
|
||||
EXPECT_EQ(bit_cast<u64>(result.value), bit_cast<u64>(static_cast<double>(double_value))); \
|
||||
EXPECT_EQ(result.end_ptr - start, chars_parsed); \
|
||||
} while (false)
|
||||
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0x", 0., 1);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e", 0., 1);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e+", 0., 1);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1", 0., 3);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0beef", 0., 1);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0p123", 0., 1);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1", 0., 3);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1abc", 0., 3);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1e1", 0., 3);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1+", 0., 3);
|
||||
EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e-+1", 0., 1);
|
||||
}
|
||||
|
||||
TEST_CASE(invalid_parse)
|
||||
{
|
||||
#define EXPECT_PARSE_TO_FAIL(string_value) \
|
||||
do { \
|
||||
StringView view = string_value##sv; \
|
||||
char const* start = view.characters_without_null_termination(); \
|
||||
auto result = parse_first_floating_point<double>(start, start + view.length()); \
|
||||
EXPECT(result.error == AK::FloatingPointError::NoOrInvalidInput); \
|
||||
} while (false)
|
||||
|
||||
EXPECT_PARSE_TO_FAIL("");
|
||||
EXPECT_PARSE_TO_FAIL("e");
|
||||
EXPECT_PARSE_TO_FAIL(".");
|
||||
EXPECT_PARSE_TO_FAIL("-.");
|
||||
EXPECT_PARSE_TO_FAIL("+.");
|
||||
EXPECT_PARSE_TO_FAIL(".e");
|
||||
EXPECT_PARSE_TO_FAIL("-.e");
|
||||
EXPECT_PARSE_TO_FAIL("+.e");
|
||||
EXPECT_PARSE_TO_FAIL(".e1");
|
||||
EXPECT_PARSE_TO_FAIL("-.e1");
|
||||
EXPECT_PARSE_TO_FAIL("+.e1");
|
||||
|
||||
EXPECT_PARSE_TO_FAIL("++2");
|
||||
EXPECT_PARSE_TO_FAIL("++1");
|
||||
EXPECT_PARSE_TO_FAIL("++0");
|
||||
EXPECT_PARSE_TO_FAIL("++2e1");
|
||||
EXPECT_PARSE_TO_FAIL("++1e1");
|
||||
EXPECT_PARSE_TO_FAIL("++0e1");
|
||||
|
||||
#define EXPECT_MULTI_SIGNS_TO_FAIL(base_string) \
|
||||
EXPECT_PARSE_TO_FAIL("++" base_string); \
|
||||
EXPECT_PARSE_TO_FAIL("--" base_string); \
|
||||
EXPECT_PARSE_TO_FAIL("+-" base_string); \
|
||||
EXPECT_PARSE_TO_FAIL("-+" base_string)
|
||||
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1");
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1.");
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1e1");
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1.e1");
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1.0e1");
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1.0e+1");
|
||||
EXPECT_MULTI_SIGNS_TO_FAIL("1.0e-1");
|
||||
}
|
||||
|
||||
TEST_CASE(detect_out_of_range_values)
|
||||
{
|
||||
#define EXPECT_PARSE_TO_HAVE_ERROR(string_value, error_value) \
|
||||
do { \
|
||||
StringView view = string_value##sv; \
|
||||
char const* start = view.characters_without_null_termination(); \
|
||||
auto result = parse_first_floating_point<double>(start, start + view.length()); \
|
||||
EXPECT(result.error == error_value); \
|
||||
EXPECT(result.end_ptr == start + view.length()); \
|
||||
} while (false)
|
||||
|
||||
EXPECT_PARSE_TO_HAVE_ERROR("10e-10000", AK::FloatingPointError::RoundedDownToZero);
|
||||
EXPECT_PARSE_TO_HAVE_ERROR("-10e-10000", AK::FloatingPointError::RoundedDownToZero);
|
||||
EXPECT_PARSE_TO_HAVE_ERROR("10e10000", AK::FloatingPointError::OutOfRange);
|
||||
EXPECT_PARSE_TO_HAVE_ERROR("-10e10000", AK::FloatingPointError::OutOfRange);
|
||||
}
|
||||
|
||||
static bool parse_completely_passes(StringView view)
|
||||
{
|
||||
char const* start = view.characters_without_null_termination();
|
||||
return parse_floating_point_completely<double>(start, start + view.length()).has_value();
|
||||
}
|
||||
|
||||
TEST_CASE(parse_completely_must_be_just_floating_point)
|
||||
{
|
||||
#define EXPECT_PARSE_COMPLETELY_TO_FAIL(value) \
|
||||
EXPECT(!parse_completely_passes(value##sv))
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("+");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("++1");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("+-1");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-+1");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("--1");
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1 ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1. ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1e ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123 ");
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-1 ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-1. ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-1e ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-1.e ");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("-1.e123 ");
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1A");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.C");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1e*");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e(");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123]");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123&");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123 ");
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL(":1234567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1:234567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("12:34567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("123:4567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1234:567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("12345:67890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("123456:7890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567:890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("12345678:90");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("123456789:0");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567890:");
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1;234567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567;890");
|
||||
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1=234567890");
|
||||
EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567=890");
|
||||
}
|
||||
Loading…
Reference in a new issue