1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- Copyright (C) 1992-2021 Free Software Foundation, Inc. 4Contributed by Cygnus Support. Written by Julia Menapace, Jim Kingdon, 5and David MacKenzie. 6 7Permission is granted to copy, distribute and/or modify this document 8under the terms of the GNU Free Documentation License, Version 1.3 or 9any later version published by the Free Software Foundation; with no 10Invariant Sections, with no Front-Cover Texts, and with no Back-Cover 11Texts. A copy of the license is included in the section entitled "GNU 12Free Documentation License". --> 13<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 14<head> 15<title>STABS: Subranges</title> 16 17<meta name="description" content="STABS: Subranges"> 18<meta name="keywords" content="STABS: Subranges"> 19<meta name="resource-type" content="document"> 20<meta name="distribution" content="global"> 21<meta name="Generator" content="makeinfo"> 22<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 23<link href="index.html#Top" rel="start" title="Top"> 24<link href="Symbol-Types-Index.html#Symbol-Types-Index" rel="index" title="Symbol Types Index"> 25<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 26<link href="Types.html#Types" rel="up" title="Types"> 27<link href="Arrays.html#Arrays" rel="next" title="Arrays"> 28<link href="Cross_002dReferences.html#Cross_002dReferences" rel="previous" title="Cross-References"> 29<style type="text/css"> 30<!-- 31a.summary-letter {text-decoration: none} 32blockquote.smallquotation {font-size: smaller} 33div.display {margin-left: 3.2em} 34div.example {margin-left: 3.2em} 35div.indentedblock {margin-left: 3.2em} 36div.lisp {margin-left: 3.2em} 37div.smalldisplay {margin-left: 3.2em} 38div.smallexample {margin-left: 3.2em} 39div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 40div.smalllisp {margin-left: 3.2em} 41kbd {font-style:oblique} 42pre.display {font-family: inherit} 43pre.format {font-family: inherit} 44pre.menu-comment {font-family: serif} 45pre.menu-preformatted {font-family: serif} 46pre.smalldisplay {font-family: inherit; font-size: smaller} 47pre.smallexample {font-size: smaller} 48pre.smallformat {font-family: inherit; font-size: smaller} 49pre.smalllisp {font-size: smaller} 50span.nocodebreak {white-space:nowrap} 51span.nolinebreak {white-space:nowrap} 52span.roman {font-family:serif; font-weight:normal} 53span.sansserif {font-family:sans-serif; font-weight:normal} 54ul.no-bullet {list-style: none} 55--> 56</style> 57 58 59</head> 60 61<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 62<a name="Subranges"></a> 63<div class="header"> 64<p> 65Next: <a href="Arrays.html#Arrays" accesskey="n" rel="next">Arrays</a>, Previous: <a href="Cross_002dReferences.html#Cross_002dReferences" accesskey="p" rel="previous">Cross-References</a>, Up: <a href="Types.html#Types" accesskey="u" rel="up">Types</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Types-Index.html#Symbol-Types-Index" title="Index" rel="index">Index</a>]</p> 66</div> 67<hr> 68<a name="Subrange-Types"></a> 69<h3 class="section">5.4 Subrange Types</h3> 70 71<p>The ‘<samp>r</samp>’ type descriptor defines a type as a subrange of another 72type. It is followed by type information for the type of which it is a 73subrange, a semicolon, an integral lower bound, a semicolon, an 74integral upper bound, and a semicolon. The AIX documentation does not 75specify the trailing semicolon, in an effort to specify array indexes 76more cleanly, but a subrange which is not an array index has always 77included a trailing semicolon (see <a href="Arrays.html#Arrays">Arrays</a>). 78</p> 79<p>Instead of an integer, either bound can be one of the following: 80</p> 81<dl compact="compact"> 82<dt><code>A <var>offset</var></code></dt> 83<dd><p>The bound is passed by reference on the stack at offset <var>offset</var> 84from the argument list. See <a href="Parameters.html#Parameters">Parameters</a>, for more information on such 85offsets. 86</p> 87</dd> 88<dt><code>T <var>offset</var></code></dt> 89<dd><p>The bound is passed by value on the stack at offset <var>offset</var> from 90the argument list. 91</p> 92</dd> 93<dt><code>a <var>register-number</var></code></dt> 94<dd><p>The bound is passed by reference in register number 95<var>register-number</var>. 96</p> 97</dd> 98<dt><code>t <var>register-number</var></code></dt> 99<dd><p>The bound is passed by value in register number <var>register-number</var>. 100</p> 101</dd> 102<dt><code>J</code></dt> 103<dd><p>There is no bound. 104</p></dd> 105</dl> 106 107<p>Subranges are also used for builtin types; see <a href="Traditional-Builtin-Types.html#Traditional-Builtin-Types">Traditional Builtin Types</a>. 108</p> 109 110 111 112</body> 113</html> 114