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LibC: Implement wcsnrtombs

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This commit is contained in:
Tim Schumacher 2021-10-22 00:57:44 +02:00 • committed by Brian Gianforcaro
parent e618602433
commit 552ae77f0d
2 changed files with 40 additions and 5 deletions
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26
Tests/LibC/TestWchar.cpp
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@ -364,6 +364,32 @@ TEST_CASE(wcsrtombs)
EXPECT_EQ(src, nullptr);
}
TEST_CASE(wcsnrtombs)
{
mbstate_t state = {};
const wchar_t good_chars[] = { L'\U0001F41E', L'\U0001F41E', L'\0' };
const wchar_t* src;
size_t ret = 0;
// Convert nothing.
src = good_chars;
ret = wcsnrtombs(nullptr, &src, 0, 0, &state);
EXPECT_EQ(ret, 0ul);
EXPECT_EQ(src, good_chars);
// Convert one wide char.
src = good_chars;
ret = wcsnrtombs(nullptr, &src, 1, 0, &state);
EXPECT_EQ(ret, 4ul);
EXPECT_EQ(src, good_chars + 1);
// Encounter a null character.
src = good_chars;
ret = wcsnrtombs(nullptr, &src, 4, 0, &state);
EXPECT_EQ(ret, 8ul);
EXPECT_EQ(src, nullptr);
}
TEST_CASE(mbsrtowcs)
{
mbstate_t state = {};