atof(3) [centos man page]

ATOF(3) 						     Linux Programmer's Manual							   ATOF(3)

NAME

       atof - convert a string to a double

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.  The behavior is the same as

	   strtod(nptr, NULL);

       except that atof() does not detect errors.

RETURN VALUE

       The converted value.

CONFORMING TO

       SVr4, POSIX.1-2001, 4.3BSD, C89, C99.

SEE ALSO

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

COLOPHON

       This  page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    2012-08-03								   ATOF(3)

ATOF(3) 						   BSD 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'').

BSD
								   June 4, 1993 							       BSD