Apologies for the noob question here, but it's been a very long time since did any C.
can I just return a value from within a for loop to end loop execution or do I need to break and then return a value? Is this ok:
or must i do this?Code:int i; for(i = 0; i < upper_limit; i++){ if (my_array[i] == val) { return i; } }
Code:int i; for(i = 0; i < upper_limit; i++){ if (my_array[i] == val) { break; } } if (i == upper_limit){ return -1; } else { return i; }
First is right. You don't need a break here.
Of course you can. The for loop is just shorthand for:
So inserting a return doesn't harm anything:Code:#include <stdlib.h> #include <stdio.h> int main(int argc, char **argv) { { int i = 20; // Initialize /* The loop */ forloop1: printf("%d\n", i); /* The loop */ if(!(i > 0)) goto forloop1end; // Check condition --i; // Iterate goto forloop1; // Loop forloop1end: } return EXIT_SUCCESS; }
Code:#include <stdlib.h> #include <stdio.h> int main(int argc, char **argv) { { int i = 20; // Initialize /* The loop */ forloop1: printf("%d\n", i); if(i == 5) return i; /* The loop */ if(!(i > 0)) goto forloop1end; // Check condition --i; // Iterate goto forloop1; // Loop forloop1end: } return EXIT_SUCCESS; }
Last edited by hauzer; 11-07-2011 at 04:09 PM.
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Thanks guys. I'll be using this:
Code:int i; for(i = 0; i < upper_limit; i++){ if (my_array[i] == val) { return i; } } return -1;
