Eclipse中c99标准的问题

Question

I'm trying to build a C project in Eclipe and I get this error:

" 'for' loop initial declarations are only allowed in C99 mode "

needless to say that I added -std=c99 in the project properties. it's the first time I get this problem. any ideas what's wrong?

Answer 1

I'm assuming your code looks something like this:

for(int a = 0 ; a < 42 ; a++)

In early versions of C you can't assign local variables inside for loops. Change it to:

int a = 0;
//some code
for(a = 0 ; a < 42 ; a++)
{
    //your code
}