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How to buffer output?

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Join Date: Oct 2009

Posts: 23

Reputation: raigs is an unknown quantity at this point

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raigs

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How to buffer output?

Oct 28th, 2009

How to:
1. Buffer output ?
2. Get its size ?
3. Print the buffer ?

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
#include <stdio.h>
 
int main(void)
{
	printf("Tons of printf lines\n");
 
	// 1. Somehow buffer the output up until this point
 
	printf("The size of the buffer is: %i\n", SIZEOFBUFFER); // 2. Get and print the size of the buffer.
 
	printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.
 
	return 0;
}
#include <stdio.h>

int main(void)
{
	printf("Tons of printf lines\n");

	// 1. Somehow buffer the output up until this point

	printf("The size of the buffer is: %i\n", SIZEOFBUFFER); // 2. Get and print the size of the buffer.

	printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.

	return 0;
}

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Join Date: Oct 2009

Posts: 27

Reputation: ankur_ is an unknown quantity at this point

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ankur_

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Oct 29th, 2009

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Originally Posted by raigs

How to:
1. Buffer output ?
2. Get its size ?
3. Print the buffer ?
Help with Code Tags

C Syntax (Toggle Plain Text)
#include <stdio.h>
 
int main(void)
{
	printf("Tons of printf lines\n");
 
	// 1. Somehow buffer the output up until this point
 
	printf("The size of the buffer is: %i\n", SIZEOFBUFFER); // 2. Get and print the size of the buffer.
 
	printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.
 
	return 0;
}
#include <stdio.h> int main(void) { printf("Tons of printf lines\n"); // 1. Somehow buffer the output up until this point printf("The size of the buffer is: %i\n", SIZEOFBUFFER); // 2. Get and print the size of the buffer. printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer. return 0; }

What is SIZEOFBUFFER and BUFFER in your code and can you explain clearly what you want

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Join Date: Sep 2009

Posts: 358

Reputation: dkalita will become famous soon enough

Solved Threads: 56

dkalita

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Posting Whiz

Oct 29th, 2009

•

Originally Posted by raigs

How to:
1. Buffer output ?
2. Get its size ?
3. Print the buffer ?
Help with Code Tags

C Syntax (Toggle Plain Text)
#include <stdio.h>
 
int main(void)
{
	printf("Tons of printf lines\n");
 
	// 1. Somehow buffer the output up until this point
 
	printf("The size of the buffer is: %i\n", SIZEOFBUFFER); // 2. Get and print the size of the buffer.
 
	printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.
 
	return 0;
}
#include <stdio.h> int main(void) { printf("Tons of printf lines\n"); // 1. Somehow buffer the output up until this point printf("The size of the buffer is: %i\n", SIZEOFBUFFER); // 2. Get and print the size of the buffer. printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer. return 0; }

may be something like

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
#define MAX_BUFFER 1000
char BUFFER[MAX_BUFFER];
BUFFER[0] = '\0';
strcat(BUFFER, toPrint);/*toPrint contains whatever u wanted to print*/
/*but check for the buffer content size because if it exceed MAX_BUFFER u wil get seg fault*/
/*do it for every printf("%s", toPrint)*/
printf("The size of the buffer is: %i\n", strlen(BUFFER)); // 2. Get and print the size of the buffer.
printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.
#define MAX_BUFFER 1000
char BUFFER[MAX_BUFFER];
BUFFER[0] = '\0';
strcat(BUFFER, toPrint);/*toPrint contains whatever u wanted to print*/
/*but check for the buffer content size because if it exceed MAX_BUFFER u wil get seg fault*/
/*do it for every printf("%s", toPrint)*/
printf("The size of the buffer is: %i\n", strlen(BUFFER)); // 2. Get and print the size of the buffer.
printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.

Last edited by dkalita; Oct 29th, 2009 at 4:06 am.

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Join Date: Oct 2009

Posts: 23

Reputation: raigs is an unknown quantity at this point

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raigs

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Newbie Poster

Oct 29th, 2009

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Originally Posted by dkalita

may be something like
Help with Code Tags

C Syntax (Toggle Plain Text)
#define MAX_BUFFER 1000
char BUFFER[MAX_BUFFER];
BUFFER[0] = '\0';
strcat(BUFFER, toPrint);/*toPrint contains whatever u wanted to print*/
/*but check for the buffer content size because if it exceed MAX_BUFFER u wil get seg fault*/
/*do it for every printf("%s", toPrint)*/
printf("The size of the buffer is: %i\n", strlen(BUFFER)); // 2. Get and print the size of the buffer.
printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.
#define MAX_BUFFER 1000 char BUFFER[MAX_BUFFER]; BUFFER[0] = '\0'; strcat(BUFFER, toPrint);/*toPrint contains whatever u wanted to print*/ /*but check for the buffer content size because if it exceed MAX_BUFFER u wil get seg fault*/ /*do it for every printf("%s", toPrint)*/ printf("The size of the buffer is: %i\n", strlen(BUFFER)); // 2. Get and print the size of the buffer. printf("Here is the output:\n\n%s", BUFFER); // 3. Print the buffer.

Yes, that works. I thought there might be a cleaner way of doing it though. Maybe some keyword that I could use...