ATOF(3) Library Functions Manual ATOF(3)
NAME
atofconvert ASCII string to double
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
double
atof(const char *nptr);
DESCRIPTION
The atof() function converts the initial portion of the string pointed to by nptr to double representation.
 
It is equivalent to:
strtod(nptr, (char **)NULL);
SEE ALSO
STANDARDS
The atof() function conforms to ANSI X3.159-1989 (“ANSI C”).