LibCrypto: Add Formatter<SignedBigInteger>

Useful for seeing SignedBigInteger values in test failure messages.
Author: https://github.com/nico Commit: https://github.com/SerenityOS/serenity/commit/ec37eadb394 Pull-request: https://github.com/SerenityOS/serenity/pull/11996 Reviewed-by: https://github.com/alimpfard
2022-01-17 12:17:40 -05:00 · 2022-01-17 12:17:40 -05:00 · ec37eadb39 · 2024-07-18 00:34:07 +09:00
commit ec37eadb39
parent b87e517deb
2 changed files with 12 additions and 0 deletions
--- a/Userland/Libraries/LibCrypto/BigInt/SignedBigInteger.cpp
+++ b/Userland/Libraries/LibCrypto/BigInt/SignedBigInteger.cpp
@ -308,3 +308,10 @@ bool SignedBigInteger::operator>=(const SignedBigInteger& other) const
 }

 }
+
+ErrorOr<void> AK::Formatter<Crypto::SignedBigInteger>::format(FormatBuilder& fmtbuilder, const Crypto::SignedBigInteger& value)
+{
+    if (value.is_negative())
+        TRY(fmtbuilder.put_string("-"));
+    return Formatter<Crypto::UnsignedBigInteger>::format(fmtbuilder, value.unsigned_value());
+}
--- a/Userland/Libraries/LibCrypto/BigInt/SignedBigInteger.h
+++ b/Userland/Libraries/LibCrypto/BigInt/SignedBigInteger.h
@ -143,6 +143,11 @@ struct SignedDivisionResult {

 }

+template<>
+struct AK::Formatter<Crypto::SignedBigInteger> : AK::Formatter<Crypto::UnsignedBigInteger> {
+    ErrorOr<void> format(FormatBuilder&, Crypto::SignedBigInteger const&);
+};
+
 inline Crypto::SignedBigInteger
 operator""_sbigint(const char* string, size_t length)
 {