return 1 vs return 0 vs break

[COKEDUDE]

Can someone please explain the meaning of these return 1 vs return 0 vs break. I know 1 generally means true and 0 generally means false but how would they effect a return statement? Also when would you wanna use a return statement instead of a break statement and vice versa?

[WaltP]

return x; will return the value x to the calling routine. If you called the function with rt = func(); rt will contain whatever x was. break; will immediately exit a loop even though the loop is not finished.

for (i=0; i<10; i++)
{
    --stuff--
    if (i == 7) break;
    --more stuff--
}

This loop will exit when i = 7. It won't run until i >= 10. And --more stuff-- will not be executed either.

[gerard4143]

You realy should google C functions and C control statements....You'll find the answers in these queries...

[COKEDUDE]

return x; will return the value x to the calling routine. If you called the function with rt = func(); rt will contain whatever x was. break; will immediately exit a loop even though the loop is not finished.

for (i=0; i<10; i++)
{
    --stuff--
    if (i == 7) break;
    --more stuff--
}

This loop will exit when i = 7. It won't run until i >= 10. And --more stuff-- will not be executed either.

When I put "return 1" in a few of my programs it stopped execution of the rest of my program.

You realy should google C functions and C control statements....You'll find the answers in these queries...

Nothing useful in relationship to my question. I checked the first 20 links with no luck.
http://www.google.com/search?q=c+programming+return+1&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
http://www.google.com/search?q=c+programming+return+statement&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

[Dave Sinkula]

When I put "return 1" in a few of my programs it stopped execution of the rest of my program.

Returning from a generic function, or returning from main? Returning from main means your program is "done".

[COKEDUDE]

Returning from a generic function, or returning from main? Returning from main means your program is "done".

A couple of while and for loops.

[WaltP]

A couple of while and for loops.

... in a generic function, or in main? Returning from main means your program is "done".

You did not answer Dave's question. Although we can surmise from your answer it's from main()

[COKEDUDE]

You did not answer Dave's question. Although we can surmise from your answer it's from main()

Could you please give me an example of returning from a function please?

[WaltP]

ans = fnAdd(a, b);
printf("%d + %d = %d \n", a, b, ans);

int fnAdd(int x, int y)
{
    return (x+y);
}