1<html lang="en"> 2<head> 3<title>strtoflt128 - GCC libquadmath</title> 4<meta http-equiv="Content-Type" content="text/html"> 5<meta name="description" content="GCC libquadmath"> 6<meta name="generator" content="makeinfo 4.13"> 7<link title="Top" rel="start" href="index.html#Top"> 8<link rel="up" href="I_002fO-Library-Routines.html#I_002fO-Library-Routines" title="I/O Library Routines"> 9<link rel="next" href="quadmath_005fsnprintf.html#quadmath_005fsnprintf" title="quadmath_snprintf"> 10<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 11<!-- 12Copyright (C) 2010-2013 Free Software Foundation, Inc. 13 14 Permission is granted to copy, distribute and/or modify this 15 document under the terms of the GNU Free Documentation License, 16 Version 1.2 or any later version published by the Free Software 17 Foundation; with no Invariant Sections, with the Front-Cover Texts 18 being ``A GNU Manual,'' and with the Back-Cover Texts as in (a) 19 below. A copy of the license is included in the section entitled 20 ``GNU Free Documentation License.'' 21 22 (a) The FSF's Back-Cover Text is: ``You have the freedom to copy 23 and modify this GNU manual. 24 --> 25<meta http-equiv="Content-Style-Type" content="text/css"> 26<style type="text/css"><!-- 27 pre.display { font-family:inherit } 28 pre.format { font-family:inherit } 29 pre.smalldisplay { font-family:inherit; font-size:smaller } 30 pre.smallformat { font-family:inherit; font-size:smaller } 31 pre.smallexample { font-size:smaller } 32 pre.smalllisp { font-size:smaller } 33 span.sc { font-variant:small-caps } 34 span.roman { font-family:serif; font-weight:normal; } 35 span.sansserif { font-family:sans-serif; font-weight:normal; } 36--></style> 37<link rel="stylesheet" type="text/css" href="../cs.css"> 38</head> 39<body> 40<div class="node"> 41<a name="strtoflt128"></a> 42<p> 43Next: <a rel="next" accesskey="n" href="quadmath_005fsnprintf.html#quadmath_005fsnprintf">quadmath_snprintf</a>, 44Up: <a rel="up" accesskey="u" href="I_002fO-Library-Routines.html#I_002fO-Library-Routines">I/O Library Routines</a> 45<hr> 46</div> 47 48<h3 class="section">3.1 <code>strtoflt128</code> — Convert from string</h3> 49 50<p>The function <code>strtoflt128</code> converts a string into a 51<code>__float128</code> number. 52 53 <dl> 54<dt>Syntax<dd><code>__float128 strtoflt128 (const char *s, char **sp)</code> 55 56 <br><dt><em>Arguments</em>:<dd> 57 <p><table summary=""><tr align="left"><td valign="top" width="15%"><var>s</var> </td><td valign="top" width="70%">input string 58<br></td></tr><tr align="left"><td valign="top" width="15%"><var>sp</var> </td><td valign="top" width="70%">the address of the next character in the string 59 <br></td></tr></table> 60 61 <p>The argument <var>sp</var> contains, if not <code>NULL</code>, the address of the 62next character following the parts of the string, which have been read. 63 64 <br><dt>Example<dd> 65 <pre class="smallexample"> #include <quadmath.h> 66 67 int main () 68 { 69 __float128 r; 70 71 r = strtoflt128 ("1.2345678", NULL); 72 73 return 0; 74 } 75</pre> 76 </dl> 77 78 </body></html> 79 80