From:	apothegm AT no DOT spam DOT softcom DOT net (Nathan Thompson)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: CHARACTER HELP.
Date:	Sat, 06 Sep 1997 17:20:59 GMT
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On 6 Sep 97 07:17:18 GMT, Craig Rennie <carrac AT geocities DOT com> wrote:

>Does anybody know how I could go about changing a single character up 3 
>characters which have been read from a file?
>eg. Reading "c" from a file and converting it to "f".
>    or reading "%" and converting it to "(".
>
You can simply add the value '3' to the character.  For example:

#include <stdio.h>

int main(void) {

	FILE *fp;
	char buffer[512];
	int i;

	if ((fp=fopen("myfile", "rt"))==NULL) {
		printf("\nCan't open file!\n");
		return 1;
	}

	fread(buffer, 512, 1, fp);

	fclose(fp);

	// convert characters here
	for (i=0; i<512; i++) {
		buffer[i]+=3;
	}

	// do whatever you want with the buffer here

	return 0;
}

Nathan Thompson
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