std::fputwc - cppreference.com (original) (raw)
| Defined in header | | | | ---------------------------------------------------------------------------------------------- | --- | | | std::wint_t fputwc( wchar_t ch, std::FILE* stream ); | (1) | | | std::wint_t putwc( wchar_t ch, std::FILE* stream ); | (2) | |
Writes a wide character ch to the given output stream stream.
- May be implemented as a macro and may evaluate stream more than once.
[edit] Parameters
| ch | - | wide character to be written |
|---|---|---|
| stream | - | the output stream |
[edit] Return value
ch on success, WEOF on failure. If an encoding error occurs, errno is set to EILSEQ.
[edit] Example
#include #include #include #include #include #include int main() { std::setlocale(LC_ALL, "en_US.utf8"); for (const wchar_t ch : { L'\u2200', // Unicode name: "FOR ALL" L'\n', L'∀', }) { if (errno = 0; std::fputwc(ch, stdout) == WEOF) { std::puts(errno == EILSEQ ? "Encoding error in fputwc" : "I/O error in fputwc" ); return EXIT_FAILURE; } } return EXIT_SUCCESS; }
Possible output: