1. How would you assign the value 3.14 to a variable called pi?
2. Is it possible to assign an int to a double?
   1. Is the reverse possible?

• The standard way of assigning 3.14 to pi is:

double pi;
pi = 3.14;

• • Since pi is a constant, good programming convention dictates to make it unchangeable during runtime. Extra credit if you use one of the following two lines:

const float pi = 3.14;
#define pi 3.14

• Yes, for example :

int a = 67;
double b;
b = a;

• Yes, but a cast is necessary and the double is truncated:

double a=89;
int b;
b = (int) a;

References

Wikibooks contributors. "C Programming/Exercise solutions". Wikibooks. Wikibooks. Retrieved 13 May 2024.