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putchar

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< c‎ | io
Revision as of 07:56, 16 October 2013 by Eendy (Talk | contribs)

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Defined in header <stdio.h>
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).

Contents

[edit] Parameters

ch - character to be written

[edit] Return value

On success, returns the written character.

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

[edit] Example

#include <stdio.h>
 
int main()
{
    for (char c = 'a'; c != 'z'; c++)
        putchar(c);
    putchar('\n');
 
    // putchar return value is not equal to the argument
    int r = 0x1070;
    printf("\n0x%x\n", r);
    r = putchar(r);
    printf("\n0x%x\n", r);
}

Output:

abcdefghijklmnopqrstuvwxy
0x1070
p
0x70

[edit] See also

writes a character to a file stream
(function) [edit]
C++ documentation for putchar