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# 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).

### [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

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

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