std::putchar
From cppreference.com
| Defined in header <cstdio>
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int putchar( int ch );
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Writes a character ch to stdout. Internally, the character is converted to unsigned char just before being written.
Equivalent to std::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 std::ferror()) on stdout.
Example
Run this code
#include <cstdio>
int main()
{
for (char c = 'a'; c != 'z'; ++c)
std::putchar(c);
// putchar return value is not equal to the argument
int r = 0x1024;
std::printf("\nr = 0x%x\n", r);
r = std::putchar(r);
std::printf("\nr = 0x%x\n", r);
}
Possible output:
abcdefghijklmnopqrstuvwxy
r = 0x1024
$
r = 0x24
See also
| writes a character to a file stream (function) | |
C documentation for putchar
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