ignorant student needs help w/ C

[allenericc]

Is there a way to convert char[] of 40 single digits into a double, process it, then break it back up into individual digits and store it back in the char[]? I know it sounds simple enough but I can't figure it out.

I've tried to use atof() and then sprintf(), but can't even get the right value out of atof().

Please help.

Thanx,
Eric

[Jüš† ä gü¥]

Originally posted by allenericc
Is there a way to convert char[] of 40 single digits into a double, process it, then break it back up into individual digits and store it back in the char[]? I know it sounds simple enough but I can't figure it out.

I've tried to use atof() and then sprintf(), but can't even get the right value out of atof().

Please help.

Thanx,
Eric

I think you'd just do something like

char characters[40];

/*Initialize the character array in some way*/

double* dubnum;
dubnum=(double*)characters;

/*Do whatever the hell you want with dubnum as a double, remembering to dereference it first, and then, when you are finished, as a side-effect, characters will already be your 40 character array, worked on by the processes you were using on the double*/

If that doesn't work, then tell me what you are trying to do because otherwise I'm confused.