NAME¶

std::putchar - std::putchar

Synopsis¶

Defined in header <cstdio>
int putchar( int ch );

Writes a character ch to stdout. Internally, the character is converted to unsigned
char just before being written.

Equivalent to putc(ch, stdout).

Parameters¶

ch - character to be written

Return value¶

On success, returns the written character.

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

Example¶

// Run this code

#include <cstdio>

int main()
{
for (char c = 'a'; c != 'z'; c++)
std::putchar(c);
std::putchar('\n');

// putchar return value is not equal to the argument
int r = 0x1070;
std::printf("\n0x%x\n", r);
r = std::putchar(r);
std::printf("\n0x%x\n", r);
}

Output:¶

abcdefghijklmnopqrstuvwxy
0x1070
p
0x70

See also¶

fputc writes a character to a file stream
putc (function)