atof3
Convert ascii string to double
Usage
#include <stdlib.h>
double
atof(const char *nptr);
Library
Standard C Library (libc, -lc)
Overview
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);
The decimal point character is defined in the program's locale (category LC_NUMERIC).
Implementation notes
The atof() function is not thread-safe and also not async-cancel-safe.
The atof() function has been deprecated by strtod() and should not be used in new code.
Errors
The function atof() need not affect the value of errno on an error.
Releases
87 releases since FreeBSD 2.0.5-RELEASE; the text changed 42 times.