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iOS Objective-C Basics (Retired) Functional Programming in C Control Flow - For Loops

Control Flow For Loops

I have coded my code exactly how he has it coded in the video but my build continues to fail and says my for loop has an empty body, and that i used an undeclared identifier I.

int main()
{
    int many[] = { 2, 4, 8};
    int sum = 0;
    for (int i=0; i < 3; i++); {
        sum += many[i]
        printf("sum %d\n", sum)
    }
    return 0;
}

2 Answers

Stone Preston
Stone Preston
42,016 Points
for (int i=0; i < 3; i++); {

you have a semicolon where you dont need one. remove the semicolon from that line (after the closing parenthesis of the for. You are also missing semicolons

sum += many[i]
printf("sum %d\n", sum)

those statements need semicolons at the end.

this is what it should look like with the fixes I mentioned:

int main()
{
    int many[] = { 2, 4, 8};
    int sum = 0;
    for (int i=0; i < 3; i++) {
        sum += many[i];
        printf("sum %d\n", sum);
    }
    return 0;
}

Thanks a ton. I am terrible with semicolons. Such a simple mistake.