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Convert a wide-character code to a character
#include <wchar.h>
size_t wcrtomb( char * s,
wchar_t wc,
mbstate_t * ps);
- s
- NULL, or a pointer to a location where the function
can store the multibyte character.
- wc
- The wide character that you want to convert.
- ps
- An internal pointer that lets wcrtomb() be a restartable
version of
wctomb();
if ps is NULL, wcrtomb() uses its
own internal variable.
You can call
mbsinit()
to determine the status of this variable.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The wcrtomb() function determines the number of bytes needed to represent the wide character wc as a multibyte character and stores the multibyte character in the location pointed to by s, to a maximum of MB_CUR_MAX bytes.
This function is affected by LC_CTYPE.
The number of bytes stored, or (size_t)-1 if the variable
wc is an invalid wide-character code.
- EILSEQ
- Invalid wide-character code.
- EINVAL
- The variable ps points to an invalid conversion state.
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
wcsrtombs(),
wcstod(), wcstof(), wcstold(),
wcstoimax(), wcstoumax(),
wcstok(),
wcstol(), wcstoll(),
wcstombs(),
wcstoul(), wcstoull(),
wctob(),
wctomb()
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