12-03-2012
What is the difference between printf and putchar() or scanf and getchar() ?
Im a newbie to programming language, i found tat there r these function called printf and putchar() as well as scanf and getchar(), im curious abt why do dey hav these 2 different function although dey r doing the same instruction?
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LEARN ABOUT DEBIAN
explain_putchar_or_die
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)