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Added function _wcsncmp

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* Compare WCHAR strings up to n characters
This commit is contained in:
akallabeth 2022-10-24 10:42:56 +02:00 committed by akallabeth
parent 96aef5f1af
commit ed57dd37b9
2 changed files with 16 additions and 1 deletions
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2
winpr/include/winpr/string.h
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@ -61,6 +61,7 @@ extern "C"
WINPR_API int _strnicmp(const char* string1, const char* string2, size_t count);
WINPR_API int _wcscmp(const WCHAR* string1, const WCHAR* string2);
WINPR_API int _wcsncmp(const WCHAR* string1, const WCHAR* string2, size_t count);
WINPR_API size_t _wcslen(const WCHAR* str);
WINPR_API size_t _wcsnlen(const WCHAR* str, size_t maxNumberOfElements);
@ -74,6 +75,7 @@ extern "C"
#else
#define _wcscmp wcscmp
#define _wcsncmp wcsncmp
#define _wcslen wcslen
#define _wcsnlen wcsnlen
#define _wcschr wcschr

15
winpr/libwinpr/crt/string.c
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@ -108,7 +108,20 @@ int _wcscmp(const WCHAR* string1, const WCHAR* string2)
Data_Read_UINT16(string1, value1);
Data_Read_UINT16(string2, value2);
return value1 - value2;
return (int)value1 - value2;
}
int _wcsncmp(const WCHAR* string1, const WCHAR* string2, size_t count)
{
for (size_t x = 0; x < count; x++)
{
const WCHAR a = string1[x];
const WCHAR b = string2[x];
if (a != b)
return (int)a - b;
}
return 0;
}
/* _wcslen -> wcslen */