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iOS

Posted by Ludwing Najera
Ludwing Najera
4,596 Points

why is float b undeclared?

so i was doing a challenge, and the debugger said that the float b is undeclared, am i crazy, or am i just missing one tiny thing?

int addTwo(float a, float b); int main(int argc, const char * argv[]); {

    float Moo = 90;
float Foo = 58;

int addTwo(moo, foo);
int lots = addTwo(moo, foo) * addTwo(moo, foo);
printf(" whaaaaa? %f\n", addTwo(moo, foo);
return 0;

}

int addTwo(moo, foo) { return a + b;

}

agreatdaytocode
agreatdaytocode
24,757 Points

You could change it to return Moo + Foo. If you would like to return a + b see Rashu post below :)

2 Answers

RASHU BHATNAGAR
PLUS
RASHU BHATNAGAR
Courses Plus Student 2,669 Points
RASHU BHATNAGAR
RASHU BHATNAGAR
Courses Plus Student 2,669 Points

Hi Ludwing, In the definition of addTwo(moo, foo) function, You have declared two variables moo and foo, so the compiler will only recognize these two variables. Instead of writing : return a+b; // a and b are not declared in the function. you should write : return moo+foo; then the function should work fine. Then two the function would probably not work fine look at the line you have written for the printf printf(" whaaaaa? %f\n", addTwo(moo, foo); instaed you should write printf(" whaaaaa? %f\n", addTwo(moo, foo)); // the parenthesis for the printf statement is missing.

I hope it helps.

Ludwing Najera
Ludwing Najera
4,596 Points
Ludwing Najera
Ludwing Najera
4,596 Points

i copied it off of this code and i did just the same thing on the other and just replaced ints with floats

int funky_math(int a, int b);
int main()

{

int foo = 24;
int bar = 35;


int result = funky_math(foo, bar);
int lots = funky_math(foo, bar) * funky_math(foo, bar);
printf("funky math %d \n", lots);

return 0;

}

int funky_math(int a, int b) { return a + b + 343; }

I'm sorry it did not work D:

agreatdaytocode
agreatdaytocode
24,757 Points

Ludwing you have declared Foo and bar change them to a and b.

int a = 24;

int a = 35;

Also change the rest of the "foo & bars" to a | b

I hope that helps.

agreatdaytocode
agreatdaytocode
24,757 Points

What challenge are you working on?