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 what you are asking is how to find out what bytes make up the double value in memory, try this:

double a=2.132;
double darr[1] = { a };
char *arr = (char*) darr;

although you probably want unsigned char, not char