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Code Issues Projects Releases Packages Wiki Activity Actions 9

AK: Compute the correct capacity in StringBuilder::try_append_repeated

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This was mistakenly broken in 2803d66d87.
This commit is contained in:
Timothy Flynn 2025-07-25 09:07:22 -04:00 • committed by Jelle Raaijmakers
commit a46e9b2adb
Notes: github-actions[bot] 2025-07-25 16:18:18 +00:00
1 changed files with 9 additions and 1 deletions
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10
AK/StringBuilder.cpp
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@ -179,9 +179,17 @@ ErrorOr<void> StringBuilder::try_append_repeated(StringView string, size_t n)
{
if (string.is_empty())
return {};
TRY(will_append(string.length() * (m_mode == Mode::UTF8 ? 1 : 2)));
if (m_mode == Mode::UTF8) {
TRY(will_append(string.length() * n));
} else {
auto utf16_length = simdutf::utf16_length_from_utf8(string.characters_without_null_termination(), string.length());
TRY(will_append(utf16_length * n * 2));
}
for (size_t i = 0; i < n; ++i)
TRY(try_append(string));
return {};
}