🚀 go-pugleaf

Simon Harris (s9511800@yallara.cs.rmit.edu.au) wrote:
: What is the order of execution (resolution) for statements with && and ||?

: E.G. Given the following:

: 	if (ptr != (char *) 0 && *ptr == 'a')

: does this get resolved left to right?


From left to right. In some cases the right condition will not be tested.

Try this:

#include <stdio.h>
int a( void )
{
  printf("a\n");
  return 0;
}
int b( void )
{
  printf("b\n");
  return 1;
}
main()
{
  if( a() && b() )  /* in this case b() is not executed */ 
  {
  }
  if( a() || b() )
  {
  }
}



Ralf      <ralf.schneeweiss@student.uni-tuebingen.de>