3. Library calls (functions within program libraries)

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ATOF

Section: Linux Programmer's Manual (3)
Updated: 2015-08-08
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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).
InterfaceAttributeValue
atof() Thread safetyMT-Safe locale
 

CONFORMING TO

POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.  

SEE ALSO

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

COLOPHON

This page is part of release 4.04 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 http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
CONFORMING TO
SEE ALSO
COLOPHON

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