function getting wrong values
- by frankie
so i have this function in C to calculate a power, and i'm using visual c++ 2010
power.h
void power();
float get_power(float a, int n);
power.c
void power()
{
float a, r;
int n;
printf("-POWER-\n");
printf("The base: ");
scanf("%f", &a);
n = -1;
while (n < 0)
{
printf("The power: ");
scanf("%d", &n);
if (n < 0)
{
printf("Power must be equal or larger than 0!\n");
}
else
{
r = get_power(a, n);
printf("%.2f ^ %d = %.2f", a, n, r);
}
};
}
float get_power(float a, int n)
{
if (n == 0)
{
return 1;
}
return a * get_power(a, n-1);
}
not the best way to do it, i know, but that's not it
when i debug it the values are scanned correctly (that is, the values are correct until just before the function call) but then upon entering the function a becomes 0 and n becomes 1074790400, and you can guess what happens next...
the first function is being called from the main file, i included the full code because i really have no idea what could be going on, and i can't even think on how to google for it...
strangely, i wrote the function in a single file and it works fine, but it definitely should work both ways
any idea why this is happening?
