Declaring a void variable and typecasting it later

[rsnair2]

Hey guys,

I was wondering if its possible to do something like this in c:

 void variable = 'c';

if (xyz)    {

char variable2 = variable; 

}

if (not xyz)    {

int variable3 = variable;

}

I tried it and gcc warned me, while stating that it was enabled by default, so I am not sure. Thanks in advance for any help!!

[laserlight]

No, although you can use a pointer to void to point to a char or to an int, with the choice determined at run time.

[Salem]

Use a union.

struct foo {
  int flag;
  union {
    char c;
    int i;
  } v;
};

struct foo var;
if ( var.flag ) {
  var.v.c = 'a';
} else {
  var.v.i = 42;
}