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Count the wide characters at the beginning of a string that are in a given character set
#include <wchar.h>
size_t wcsspn( const wchar_t * ws1,
const wchar_t * ws2 );
- ws1
- The wide-character string that you want to search.
- ws2
- The set of wide characters you want to look for.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The wcsspn() function returns the length of the initial segment of the string pointed to by ws1 consisting entirely of wide characters from the string pointed to by ws2. The terminating NUL isn't considered to be part of ws2.
The length of the segment.
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
Yes |
Signal handler |
Yes |
Thread |
Yes |
memchr(),
strchr(),
strcspn(),
strpbrk(),
strrchr(),
strspn(),
strstr(),
strtok(),
strtok_r(),
wcschr(),
wcscspn(),
wcspbrk(),
wcsrchr(),
wcsstr(),
wcstok()
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