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ATOF(3)		       FreeBSD Library Functions Manual		       ATOF(3)

NAME
     atof -- convert 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);

     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.

SEE ALSO
     atoi(3), atol(3), strtod(3), strtol(3), strtoul(3)

STANDARDS
     The atof()	function conforms to ISO/IEC 9945-1:1990 ("POSIX.1"), ISO/IEC
     9899:1990 ("ISO C90"), and	ISO/IEC	9899:1999 ("ISO	C99").

HISTORY
     The atof()	function appeared in Version 1 AT&T UNIX.

FreeBSD	13.0			 April 1, 2020			  FreeBSD 13.0

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | IMPLEMENTATION NOTES | ERRORS | SEE ALSO | STANDARDS | HISTORY

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