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axl_strchr

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This commit is contained in:
NukeBird 2025-12-01 20:47:34 +03:00
parent f98d39b977
commit 8016f64db4
3 changed files with 33 additions and 0 deletions
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16
axl_string.c
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@ -121,3 +121,19 @@ i32 axl_strncmp(const i8* s1, const i8* s2, u32 n)
return 0;
}
const i8* axl_strchr(const i8* str, i8 c)
{
u32 i = 0;
while(str[i] != '\0')
{
if(str[i] == c)
{
return str + i;
}
i++;
}
return NULL;
}

1
axl_string.h
View file

@ -9,5 +9,6 @@ i8* axl_strncpy(i8* dst, const i8* src, u32 n);
i8* axl_strcat(i8* dst, const i8* src);
i8* axl_strncat(i8* dst, const i8* src, u32 n);
i32 axl_strcmp(const i8* s1, const i8* s2);
const i8* axl_strchr(const i8* str, i8 c);
#endif // AXL_STRING

16
axl_string_test.c
View file

@ -229,6 +229,22 @@ KOAN(strncat_zero_n)
ASSERT_STR_EQ("hi", (char*)dst);
}
KOAN(strchr_returns_proper_ptr)
{
i8 str[] = "hi Mark";
ASSERT_PTR_EQ(str + 0, axl_strchr(str, 'h'));
ASSERT_PTR_EQ(str + 1, axl_strchr(str, 'i'));
ASSERT_PTR_EQ(str + 2, axl_strchr(str, ' '));
ASSERT_PTR_EQ(str + 3, axl_strchr(str, 'M'));
ASSERT_PTR_EQ(str + 4, axl_strchr(str, 'a'));
ASSERT_PTR_EQ(str + 5, axl_strchr(str, 'r'));
ASSERT_PTR_EQ(str + 6, axl_strchr(str, 'k'));
ASSERT_NULL(axl_strchr(str, '\0'));
ASSERT_NULL(axl_strchr(str, 'm'));
}
int main(void)
{
axl_init();