I was trying to compile a simple ansi C example in Visual Studio 2010 and came across with this error compiling:
Error: patchC.c(5): error C2275: 'FILE' : illegal use of this type as an expression
Program1:
#include <stdio.h>
int main(void) {
printf("Hello world!\n");
FILE *fp;
fp = fopen("test.txt", "r");
return 0;
}
The same program compiles without errors in gcc v4.5.2.
But, if I put the "FILE *fp;" line out of the main(), the program compile gracefully.
Program2:
#include <stdio.h>
FILE *fp;
int main(void) {
printf("Hello world!\n");
fp = fopen("test.txt", "r");
return 0;
}
I don't figure out why this behavior, anyone could answer?