Convert double value to a char array in C

Question

How do I convert double value to a char array in C?

double a=2.132;
char arr[8];

Is there any way to do this in standard C? Can anyone give

Answer 1

If you are about to store the double DATA, not the readable representation, then:

#include 

double a=2.132;
char arr[sizeof(a)];
memcpy(arr,&a,sizeof(a));