Programming Forums > Application Development > C

dchankhour · Jan 18th, 2006, 2:22 PM

how do i write a function that outputs a newline character, and output the newline character throught fputc.

para · Jan 18th, 2006, 2:28 PM

Quote:

NAME
fputc, fputs, putc, putchar, puts - output of characters and strings

SYNOPSIS
#include <stdio.h>

int fputc(int c, FILE *stream);
int fputs(const char *s, FILE *stream);
int putc(int c, FILE *stream);
int putchar(int c);
int puts(const char *s);

DESCRIPTION
fputc() writes the character c, cast to an unsigned char, to stream.

fputs() writes the string s to stream, without its trailing '\0'.

putc() is equivalent to fputc() except that it may be implemented as a macro which evaluates stream more than once.

putchar(c); is equivalent to putc(c,stdout).

puts() writes the string s and a trailing newline to stdout.

Calls to the functions described here can be mixed with each other and with calls to other output functions from the stdio library for the same output stream.

For non-locking counterparts, see unlocked_stdio(3).

RETURN VALUE
fputc(), putc() and putchar() return the character written as an unsigned char cast to an int or EOF on error.

puts() and fputs() return a non-negative number on success, or EOF on error.

CONFORMING TO
ANSI-C, POSIX.1

If you want to write a line feed with fputc()...

(Toggle Plain Text)

fputc('\n', stdout);

A more common way is..

(Toggle Plain Text)

printf("\n");

or

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fprintf(stdout, "\n");

Justin Case · Jan 18th, 2006, 4:05 PM

fputc('\n', stdout); works... if you must use fputc.

nnxion · Jan 18th, 2006, 5:11 PM

I'm curious, why do you want to do it with fputc?

para · Jan 18th, 2006, 6:10 PM

Quote:

Originally Posted by nnxion

I'm curious, why do you want to do it with fputc?

He didn't explicitly say he wanted the output to be stdout, he may be using a pipe or file. Just a guess.

dchankhour · Jan 18th, 2006, 8:39 PM

i just thought fputc is the simpliest way to do it

Justin Case · Jan 18th, 2006, 9:11 PM

It depends on where you want to output it to, if you want to output it to standard output (console), the simplest way to do it is with something like printf("\n"); or putchar('\n');.

Justin Case · Jan 18th, 2006, 9:12 PM

oh and... next time you post... please make the title of the thread a bit more descriptive of the problem "fputc problem" or something like that would be great, thanks.

dchankhour · Jan 18th, 2006, 9:33 PM

alright , i will do my best
and thanks for the help everybody

nnxion · Jan 19th, 2006, 7:55 AM

Yes do read the "How to post a question" thread, at the top of the forum.
If you can use C++, then you will find using std::cout a better alternative.

Jan 18th, 2006, 2:22 PM	#1
dchankhour Newbie Join Date: Jan 2006 Location: Poway, CA Posts: 13 Rep Power: 0	beginner question how do i write a function that outputs a newline character, and output the newline character throught fputc.

Jan 18th, 2006, 4:05 PM	#3
Justin Case Newbie Join Date: Aug 2005 Location: In the void between my two monitors... Posts: 15 Rep Power: 0	fputc('\n', stdout); works... if you must use fputc. __________________ ... after all, we're all alike.

Jan 18th, 2006, 5:11 PM	#4
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	I'm curious, why do you want to do it with fputc? __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

Jan 18th, 2006, 9:11 PM	#7
Justin Case Newbie Join Date: Aug 2005 Location: In the void between my two monitors... Posts: 15 Rep Power: 0	It depends on where you want to output it to, if you want to output it to standard output (console), the simplest way to do it is with something like printf("\n"); or putchar('\n');. __________________ ... after all, we're all alike.

Jan 18th, 2006, 9:12 PM	#8
Justin Case Newbie Join Date: Aug 2005 Location: In the void between my two monitors... Posts: 15 Rep Power: 0	oh and... next time you post... please make the title of the thread a bit more descriptive of the problem "fputc problem" or something like that would be great, thanks. __________________ ... after all, we're all alike.

Jan 18th, 2006, 8:39 PM	#6
dchankhour Newbie Join Date: Jan 2006 Location: Poway, CA Posts: 13 Rep Power: 0	i just thought fputc is the simpliest way to do it

Jan 18th, 2006, 9:33 PM	#9
dchankhour Newbie Join Date: Jan 2006 Location: Poway, CA Posts: 13 Rep Power: 0	alright , i will do my best and thanks for the help everybody

Jan 19th, 2006, 7:55 AM	#10
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	Yes do read the "How to post a question" thread, at the top of the forum. If you can use C++, then you will find using std::cout a better alternative. __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

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Programming Forums > Application Development > C

beginner question