gcc 2.3.1 warning bug?

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1 total messages Started by Rush Record 713-864-1574 Thu, 12 Nov 1992 04:35

#1372

Author: Rush Record 713-864-1574
Date: Thu, 12 Nov 1992 04:35

27 lines
1025 bytes

The following program was compiled with gcc on a sparc II running
SunOS 4.1.1, using gcc version 2.3.1, compiled by itself, as follows:

gcc -Wall -c test.c

#include <stdio.h>
int main(char *buf)
{
	char c,*p;

	p = buf;
	while(c = *p++)
		printf("%c",c);
	return(1);
}

The result was:

test.c: In function `main':
test.c:7: warning: suggest parentheses around assignment used as truth value
test.c:8: warning: implicit declaration of function `printf'

There are already parentheses around the assignment. Must I use:

	while((c = *p++))
	
everywhere in my code?

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