Thread: Omitted the variable type

I believe, however that you could use:

Code:

foo(x) {
   return x + 9;
}

And whilst a modern compiler with warnings enabled would throw out half a dozen warnings, it would compile and work exactly like:

Code:

int foo(int x) {
   return x + 9;
}

or

Code:

int foo(x) 
int x;
{
   return x + 9;
}

--
Mats

Originally Posted by zacs7

I've looked around in the C89 draft (briefly), but I couldn't answer my question which is, What type will x be?

int.

But this is not going to be allowable in C99.

Originally Posted by zacs7

Hello,

I've seen many people omit the types when declaring variables, for example

Code:

unsigned x;

and in extreme cases,

Code:

x;

I've looked around in the C89 draft (briefly), but I couldn't answer my question which is, What type will x be?

Thanks in advance

unsigned (int).

Originally Posted by brewbuck

int.

But this is not going to be allowable in C99.

Wrong man. Compiles just fine using C99 standards.

Code:

int main() {
  unsigned x;
}

Code:

gcc -std=c99 test.c

Originally Posted by MacNilly

Wrong man. Compiles just fine using C99 standards.

I meant no type specifier at all, will not be allowed. As in:

Code:

x;

You crack me up.