atof - convert a string to a double
#include <stdlib.h>
double atof(const char *nptr);
The
atof() function converts the initial portion of the string pointed to
by
nptr to
double. The behavior is the same as
strtod(nptr, NULL);
except that
atof() does not detect errors.
The converted value.
For an explanation of the terms used in this section, see
attributes(7).
| Interface |
Attribute |
Value |
| atof () |
Thread safety |
MT-Safe locale |
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.
atoi(3),
atol(3),
strfromd(3),
strtod(3),
strtol(3),
strtoul(3)