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C COMPILER LIBRARY FUNCTION REFERENCE->Detailed Descriptions->putchar()

Summary

#include <stdio.h>
    

int putchar(int c);

Write a character to stdout

Parameter

    

c	Character to be written

Description

This function writes the single character c to the output stream stdout.

putchar() is a macro defined as putc(c,stdout).


Return Value

The return value is the character written.  A return value of EOF (-1) indicates an error.  Since EOF is a legitimate integer value, ferror() should be called to verify that an error has occurred.