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author | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
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committer | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
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diff --git a/share/doc/gfortran/SIZEOF.html b/share/doc/gfortran/SIZEOF.html new file mode 100644 index 0000000..9b2f1b1 --- /dev/null +++ b/share/doc/gfortran/SIZEOF.html @@ -0,0 +1,143 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1999-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). A copy of the license is included in the section entitled +"GNU Free Documentation License". + +(a) The FSF's Front-Cover Text is: + +A GNU Manual + +(b) The FSF's Back-Cover Text is: + +You have freedom to copy and modify this GNU Manual, like GNU + software. Copies published by the Free Software Foundation raise + funds for GNU development. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>The GNU Fortran Compiler: SIZEOF</title> + +<meta name="description" content="The GNU Fortran Compiler: SIZEOF"> +<meta name="keywords" content="The GNU Fortran Compiler: SIZEOF"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Option-Index.html#Option-Index" rel="index" title="Option Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Intrinsic-Procedures.html#Intrinsic-Procedures" rel="up" title="Intrinsic Procedures"> +<link href="SLEEP.html#SLEEP" rel="next" title="SLEEP"> +<link href="SIZE.html#SIZE" rel="previous" title="SIZE"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="SIZEOF"></a> +<div class="header"> +<p> +Next: <a href="SLEEP.html#SLEEP" accesskey="n" rel="next">SLEEP</a>, Previous: <a href="SIZE.html#SIZE" accesskey="p" rel="previous">SIZE</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="SIZEOF-_002d_002d_002d-Size-in-bytes-of-an-expression"></a> +<h3 class="section">8.253 <code>SIZEOF</code> — Size in bytes of an expression</h3> +<a name="index-SIZEOF"></a> +<a name="index-expression-size-1"></a> +<a name="index-size-of-an-expression-1"></a> + +<dl compact="compact"> +<dt><em>Description</em>:</dt> +<dd><p><code>SIZEOF(X)</code> calculates the number of bytes of storage the +expression <code>X</code> occupies. +</p> +</dd> +<dt><em>Standard</em>:</dt> +<dd><p>GNU extension +</p> +</dd> +<dt><em>Class</em>:</dt> +<dd><p>Inquiry function +</p> +</dd> +<dt><em>Syntax</em>:</dt> +<dd><p><code>N = SIZEOF(X)</code> +</p> +</dd> +<dt><em>Arguments</em>:</dt> +<dd><table> +<tr><td width="15%"><var>X</var></td><td width="70%">The argument shall be of any type, rank or shape.</td></tr> +</table> + +</dd> +<dt><em>Return value</em>:</dt> +<dd><p>The return value is of type integer and of the system-dependent kind +<var>C_SIZE_T</var> (from the <var>ISO_C_BINDING</var> module). Its value is the +number of bytes occupied by the argument. If the argument has the +<code>POINTER</code> attribute, the number of bytes of the storage area pointed +to is returned. If the argument is of a derived type with <code>POINTER</code> +or <code>ALLOCATABLE</code> components, the return value does not account for +the sizes of the data pointed to by these components. If the argument is +polymorphic, the size according to the dynamic type is returned. The argument +may not be a procedure or procedure pointer. Note that the code assumes for +arrays that those are contiguous; for contiguous arrays, it returns the +storage or an array element multiplied by the size of the array. +</p> +</dd> +<dt><em>Example</em>:</dt> +<dd><div class="smallexample"> +<pre class="smallexample"> integer :: i + real :: r, s(5) + print *, (sizeof(s)/sizeof(r) == 5) + end +</pre></div> +<p>The example will print <code>.TRUE.</code> unless you are using a platform +where default <code>REAL</code> variables are unusually padded. +</p> +</dd> +<dt><em>See also</em>:</dt> +<dd><p><a href="C_005fSIZEOF.html#C_005fSIZEOF">C_SIZEOF</a>, <br> +<a href="STORAGE_005fSIZE.html#STORAGE_005fSIZE">STORAGE_SIZE</a> +</p></dd> +</dl> + + + + + +</body> +</html> |