putchar

From cppreference.com

< c‎ | io

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

1 Parameters
2 Return value
3 Example
4 See also

[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

Run this code

#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


fputcputc	writes a character to a file stream (function)

C++ documentation for putchar

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