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atof
<html> <head> <title>atof</title> <META NAME="KEYWORDS" CONTENT="atof"> </head> <body BGCOLOR="#ffffff" LINK="#0000ff" VLINK="#0000ff" ALINK="#0000ff" TEXT="#000000"> <center> <h1><b>atof</b></h1></center> <PRE> <STRONG><A HREF="/man3/ATOF">ATOF(3)</A></STRONG> Linux Programmer's Manual <STRONG><A HREF="/man3/ATOF">ATOF(3)</A></STRONG> 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 at- <STRONG><A HREF="/man7/tributes">tributes(7)</A></STRONG>. +----------+---------------+----------------+ |Interface | Attribute | Value | +----------+---------------+----------------+ |atof() | Thread safety | MT-Safe locale | +----------+---------------+----------------+ CONFORMING TO POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD. SEE ALSO <STRONG><A HREF="/man3/atoi">atoi(3)</A></STRONG>, <STRONG><A HREF="/man3/atol">atol(3)</A></STRONG>, <STRONG><A HREF="/man3/strfromd">strfromd(3)</A></STRONG>, <STRONG><A HREF="/man3/strtod">strtod(3)</A></STRONG>, <STRONG><A HREF="/man3/strtol">strtol(3)</A></STRONG>, <STRONG><A HREF="/man3/strtoul">strtoul(3)</A></STRONG> COLOPHON This page is part of release 5.05 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 <STRONG><A HREF="/man3/ATOF">ATOF(3)</A></STRONG></PRE> <center> <h6>Man Pages Copyright Respective Owners. Site Copyright (C) 1994 - 2025 <a href="http://www.he.net">Hurricane Electric</a>. All Rights Reserved.</h6></center> </body> </html>