fputwc, putwc
From cppreference.com
| Defined in header <wchar.h>
|
||
| wint_t fputwc( wchar_t ch, FILE *stream ); |
(since C95) | |
| wint_t putwc( wchar_t ch, FILE *stream ); |
(since C95) | |
Writes a wide character ch to the given output stream stream. putwc() may be implemented as a macro and may evaluate stream more than once.
Contents |
[edit] Parameters
| ch | - | wide character to be written |
| stream | - | the output stream |
[edit] 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.
[edit] Example
Run this code
#include <locale.h> #include <stdio.h> #include <stdlib.h> #include <wchar.h> #include <errno.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:
🍌
[edit] References
- C23 standard (ISO/IEC 9899:2023):
- 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)
[edit] 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
| |
