Declaration statements in C -



Declaration statements in C -

i seem have problem declarations screwing math. advice or suggestions highly welcomed.

here's code:

int num1, num2, num3, num4, op, ; op = ((1==num3) || (2==num4)); num3 = (num1 + num2); num4 = (num1 * num2);

i've been trying lots of arrangements , re-assignments. lot has compiled, when 5 + 5 = 2659043, there's problem...

not sure you're trying do, code doing:

int num1, num2, num3, num4, op, ;

this line informs c compiler needs allocate space 5 integers (num1, num2, num3, num4, op), these integers can used variables until scope expires. not sure why have lastly ',' might want remove that.

op = ((1==num3) || (2==num4));

if num3 1, or num4 = 2, set op 1 (true). otherwise, set op 0 (false).

num3 = (num1 + num2);

self-explanatory: add together num1 , num2 , set sum num3.

num4 = (num1 * num2);

self explanatory: multiply num1 , num2 , set product num4.

immediately see issue program. using these variables, have not initialized them anything. example, how there supposed sum of (num1 + num2) if num1 , num2 not have value. seek this:

#include <stdio.h> int main() { int num1, num2, sum; num1 = 1; num2 = 2; sum = num1 + num2; printf("sum = %d\n", sum); }

c declaration

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