Tell me please why we place * symbol before boolString and don't do it before areIntsDifferent? Where can I find rules of using * ?
Code:
#import <Foundation/Foundation.h>
// returns NO if the two integers have the same
// value, YES otherwise
BOOL areIntsDifferent (int thing1, int thing2)
{
if (thing1 == thing2) {
return (NO);
} else {
return (YES);
}
} // areIntsDifferent
// given a YES value, return the human-readable
// string "YES". Otherwise return "NO"
NSString *boolString (BOOL yesNo)
{
if (yesNo == NO) {
return (@"NO");
} else {
return (@"YES");
}
} // boolString
int main (int argc, const char *argv[])
{
BOOL areTheyDifferent;
areTheyDifferent = areIntsDifferent (5, 5);
NSLog (@"are %d and %d different? %@",
5, 5, boolString(areTheyDifferent));
areTheyDifferent = areIntsDifferent (23, 42);
NSLog (@"are %d and %d different? %@",
23, 42, boolString(areTheyDifferent));
return (0);
} // main
