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Full Discussion: c programming language
Top Forums Programming c programming language Post 302117487 by convenientstore on Monday 14th of May 2007 08:54:14 PM
Old 05-14-2007
c programming language

Can someone enligten me on what below program does?
I understand getchar and putchar.. but what is this program suppose to do?
I try to put printf on it, but it shows nothing..

can someone explain to me what this program is suppose to do?
It is reading something and assigning to c?

so, if I do, ./a.out filename , will it assign entire filename's content into c?

#include <stdio.h>

/* copy input to output; 1st version */

main()
{
int c;

c = getchar();
while (c != EOF) {
putchar(c);
c = getchar();
}
}
 

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explain_putchar_or_die(3)				     Library Functions Manual					 explain_putchar_or_die(3)

NAME
explain_putchar_or_die - output of characters and report errors SYNOPSIS
#include <libexplain/putchar.h> void explain_putchar_or_die(int c); DESCRIPTION
The explain_putchar_or_die function is used to call the putchar(3) system call. On failure an explanation will be printed to stderr, obtained from explain_putchar(3), and then the process terminates by calling exit(EXIT_FAILURE). This function is intended to be used in a fashion similar to the following example: explain_putchar_or_die(c); c The c, exactly as to be passed to the putchar(3) system call. Returns: This function only returns on success. On failure, prints an explanation and exits. SEE ALSO
putchar(3) output of characters explain_putchar(3) explain putchar(3) errors exit(2) terminate the calling process COPYRIGHT
libexplain version 0.52 Copyright (C) 2008 Peter Miller explain_putchar_or_die(3)
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