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AK: Add StringView::copy_characters_to_buffer()

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Tim Schumacher 2022-03-29 02:52:20 +02:00 committed by Andreas Kling
parent 3237efc661
commit 8209c2b570
Notes: sideshowbarker 2024-07-17 14:32:23 +09:00 
Author: https://github.com/timschumi
Commit: https://github.com/SerenityOS/serenity/commit/8209c2b570
Pull-request: https://github.com/SerenityOS/serenity/pull/13333
2 changed files with 14 additions and 0 deletions
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12
AK/StringView.cpp
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@ -182,6 +182,18 @@ StringView StringView::substring_view_starting_after_substring(StringView substr
return { remaining_characters, remaining_length }; return { remaining_characters, remaining_length };
} }
bool StringView::copy_characters_to_buffer(char* buffer, size_t buffer_size) const
{
// We must fit at least the NUL-terminator.
VERIFY(buffer_size > 0);
size_t characters_to_copy = min(m_length, buffer_size - 1);
__builtin_memcpy(buffer, m_characters, characters_to_copy);
buffer[characters_to_copy] = 0;
return characters_to_copy == m_length;
}
template<typename T> template<typename T>
Optional<T> StringView::to_int() const Optional<T> StringView::to_int() const
{ {

2
AK/StringView.h
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@ -192,6 +192,8 @@ public:
[[nodiscard]] StringView substring_view_starting_from_substring(StringView substring) const; [[nodiscard]] StringView substring_view_starting_from_substring(StringView substring) const;
[[nodiscard]] StringView substring_view_starting_after_substring(StringView substring) const; [[nodiscard]] StringView substring_view_starting_after_substring(StringView substring) const;
[[nodiscard]] bool copy_characters_to_buffer(char* buffer, size_t buffer_size) const;
constexpr bool operator==(char const* cstring) const constexpr bool operator==(char const* cstring) const
{ {
if (is_null()) if (is_null())