std:: fputc, std:: putc

Writes a character ch to the given output stream stream .

Internally, the character is converted to unsigned char just before being written.

In C, putc ( ) may be implemented as a macro, which is disallowed in C++. Therefore, calls to std :: fputc ( ) and std :: putc ( ) always have the same effect.

Parameters

Return value

On success, returns the written character.

On failure, returns EOF and sets the error indicator (see std::ferror() ) on stream .

Example

#include <cstdio>
 
int main()
{
    for (char c = 'a'; c != 'z'; c++)
        std::putc(c, stdout);
 
    // putchar's return value is not equal to the argument
    int r = 0x102A;
    std::printf("\nr = 0x%x\n", r);
 
    r = std::putchar(r);
    std::printf("\nr = 0x%x\n", r);
}

abcdefghijklmnopqrstuvwxy
r = 0x102A
*
r = 0x2A

See also