string to double

cynthia · 10-11-2004, 10:54 AM

is there a function that translates/ casts a char[] to a double?

Code:

char arr[]= '1.0000';

double x1 = SOME_FUNCTION(arr);

thanks

dizzutch · 10-11-2004, 11:24 AM

not in stdlib that i know of, you can either write your own function using atoi() and typecasting the result to a double in some way, or if you want a built-in function for everything, switch to Java.

itsme86 · 10-11-2004, 11:43 AM

Code:

char arr[] = "1.000000";
double num;

num = strtod(arr, NULL);

jtshaw · 10-11-2004, 03:24 PM

And just to add to what itsme86 said... strtod (string to double), strtold (string to long double), and strtof (string to float) are all in stdlib.h, as are strtol (string to long), strtoll (string to long long), strtoul (string to unsigned long), strtoull (string to unsigned long long), ect. ect. ect.

cynthia · 10-12-2004, 02:40 AM

THANKS GUYS