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Showing content from https://en.cppreference.com/w/cpp/language/../error/error_code/../../../cpp/io/c/putwchar.html below:

std::putwchar - cppreference.com

Writes a wide character ch to stdout.

[edit] Parameters ch - wide character to be written [edit] Return value

ch on success, WEOF on failure.

[edit] Example

#include <clocale>
#include <cstdio>
#include <cstdlib>
#include <cwchar>
#include <initializer_list>
 
int main()
{
    std::setlocale(LC_ALL, "en_US.utf8");
 
    for (const wchar_t ch : {
        L'\u2200', // Unicode name: "FOR ALL"
        L'â',
        L'\n'
        })
        if (std::putwchar(ch) == WEOF)
        {
            std::puts("I/O error in std::putwchar");
            return EXIT_FAILURE;
        }
 
    return EXIT_SUCCESS;
}

Possible output:

[edit] See also

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