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Test Your Knowledge in Computers #536
Difficulty: Medium
The "null" keyword is only used to refer to uninitialized or missing data.
True or False?
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atof(3) [redhat 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 behaviour is the same as strtod(nptr, (char **)NULL); except that atof() does not detect errors. RETURN VALUE
The converted value. CONFORMING TO
SVID 3, POSIX, BSD 4.3, ISO 9899 SEE ALSO
atoi(3), atol(3), strtod(3), strtol(3), strtoul(3) GNU
1993-03-29 ATOF(3)

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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. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+----------------+ |Interface | Attribute | Value | +----------+---------------+----------------+ |atof() | Thread safety | MT-Safe locale | +----------+---------------+----------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD. SEE ALSO
atoi(3), atol(3), strfromd(3), strtod(3), strtol(3), strtoul(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2016-12-12 ATOF(3)

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