fputwc, putwc
From cppreference.com
| Defined in header <wchar.h>
|
||
| wint_t fputwc( wchar_t ch, FILE* stream ); |
(1) | (since C95) |
| wint_t putwc( wchar_t ch, FILE* stream ); |
(2) | (since C95) |
Writes a wide character ch to the given output stream stream.
2) May be implemented as a macro and may evaluate stream more than once.
Parameters
| ch | - | wide character to be written |
| stream | - | the output stream |
Return value
Returns a copy of ch on success.
On failure, returns WEOF and sets the error indicator (see ferror()) on stream.
If an encoding error occurred, additionally sets errno to EILSEQ.
Example
Run this code
#include <errno.h> #include <locale.h> #include <stdio.h> #include <stdlib.h> #include <wchar.h> int main(void) { setlocale(LC_ALL, "en_US.utf8"); errno = 0; if (fputwc(L'🍌', stdout) == WEOF) { if (errno == EILSEQ) puts("Encoding error in fputwc."); else puts("I/O error in fputwc."); return EXIT_FAILURE; } }
Possible output:
🍌
References
- C23 standard (ISO/IEC 9899:2024):
- 7.31.3.3 The fputwc function (p: 430)
- 7.31.3.8 The putwc function (p: 431-432)
- C17 standard (ISO/IEC 9899:2018):
- 7.29.3.3 The fputwc function (p: 308)
- 7.29.3.8 The putwc function (p: 310)
- C11 standard (ISO/IEC 9899:2011):
- 7.29.3.3 The fputwc function (p: 422-423)
- 7.29.3.8 The putwc function (p: 424)
- C99 standard (ISO/IEC 9899:1999):
- 7.24.3.3 The fputwc function (p: 368)
- 7.24.3.8 The putwc function (p: 370)
See also
| writes a character to a file stream (function) | |
| (C95) |
writes a wide string to a file stream (function) |
| (C95) |
gets a wide character from a file stream (function) |
| C++ documentation for fputwc
| |