atof function


The C library function double atof(const char *str) converts the string argument str to a floating-point number (type double). If no valid conversion could be performed, it returns zero (0.0). Replaced with strtod.

Library:   stdlib.h

Prototype: double atof(const char *ptr);

Syntax:	  

example program.


See also:

atoi String to integer conversion.

atol String to long integer conversion.

strtod String to double conversion.

strtol String to long integer conversion.

strtoul String to unsigned long integer conversion.


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Martin Leslie