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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"https://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<METAhttp-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Clang - C Defect Report Status</title>
<linktype="text/css" rel="stylesheet" href="menu.css">
<linktype="text/css" rel="stylesheet" href="content.css">
<styletype="text/css">
.none { background-color:#FFCCCC }
.partial { background-color:#FFE0B0 }
.unreleased { background-color:#FFFF99 }
.full { background-color:#CCFF99 }
.na { background-color:#DDDDDD }
.unknown { background-color:#EBCAFE }
.open* { color:#AAAAAA }
//.open { filter: opacity(0.2) }
tr:target { background-color:#FFFFBB }
th { background-color:#FFDDAA }
</style>
</head>
<body>
<!--#include virtual="menu.html.incl"-->
<divid="content">
<!--*************************************************************************-->
<h1>C Defect Report Support in Clang</h1>
<!--*************************************************************************-->
<h2id="cdr">C defect report implementation status</h2>
<p>This page tracks which C defect reports are implemented within Clang.</p>
<p>The implementation status for defect reports against the C Standard are
currently under investigation. Any defect report whose status in Clang is
currently unknown will be marked in <spanclass="unknown">purple</span>.</p>
<p>The <ahref="https://github.com/llvm/llvm-project/issues/">LLVM bug tracker</a> uses
the "c", "c99", "c11", "c17", and "c23" labels to track known bugs with Clang's language
conformance.</p>
<tablewidth="689" border="1" cellspacing="0">
<tr>
<th>Number</th>
<th>Status</th>
<th>Issue title</th>
<th>Available in Clang?</th>
</tr>
<trid="1">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_001.html">1</a></td>
<td>C89</td>
<td>Do functions return values by copying?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="2">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_002.html">2</a></td>
<td>NAD</td>
<td>Subclause 6.8.3.2: Semantics of #</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="3">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_003.html">3</a></td>
<td>NAD</td>
<td>Subclause 6.1.8: Preprocessing numbers</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="4">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_004.html">4</a></td>
<td>NAD</td>
<td>Are multiple definitions of unused identifiers with external linkage permitted?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="5">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_005.html">5</a></td>
<td>NAD</td>
<td>May a conforming implementation define and recognize a pragma which would change the semantics of the language?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="6">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_006.html">6</a></td>
<td>C89</td>
<td>It is unclear how the strtoul function behaves when presented with a subject sequence that begins with a minus sign</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="7">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_007.html">7</a></td>
<td>NAD</td>
<td>Are declarations of the form struct-or-union identifier ; permitted after the identifier tag has already been declared?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="8">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_008.html">8</a></td>
<td>NAD</td>
<td>Can a conforming C compiler to perform dead-store elimination?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="9">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_009.html">9</a></td>
<td>C89</td>
<td>Use of typedef names in parameter declarations</td>
<tdclass="none" align="center">No</td>
</tr>
<trid="10">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_010.html">10</a></td>
<td>NAD</td>
<td>Is a typedef to an incomplete type legal?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="11">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_011.html">11</a></td>
<td>C89</td>
<td>Merging of declarations for linked identifier</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="12">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_012.html">12</a></td>
<td>NAD</td>
<td>Is it valid to take the address of a dereferenced void pointer?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="13">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_013.html">13</a></td>
<td>C89</td>
<td>Compatible and composite function types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="14">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_014.html">14</a></td>
<td>C89</td>
<td>Issues with setjmp and fscanf descriptions</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="15">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_015.html">15</a></td>
<td>NAD</td>
<td>What is the promoted type of a plain int bit-field?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="16">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_016.html">16</a></td>
<td>C89</td>
<td>What does static storage duration do when zero for the type is not all zero bits?</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="17">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_017.html">17</a></td>
<td>C89</td>
<td>39 unrelated questions about C89</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="18">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_018.html">18</a></td>
<td>NAD</td>
<td>How does fscanf behave in the presence of multibyte characters?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="19">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_019.html">19</a></td>
<td>NAD</td>
<td>Definition of the term "printing character" and isgraph()</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="20">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_020.html">20</a></td>
<td>NAD</td>
<td>Is a compiler which allows the Relaxed Ref/Def linkage model to be considered a conforming compiler?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="21">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_021.html">21</a></td>
<td>C89</td>
<td>What is the result of: printf("%#.4o", 345);?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="22">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_022.html">22</a></td>
<td>C89</td>
<td>What is the result of: strtod("100ergs", &ptr);?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="23">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_023.html">23</a></td>
<td>NAD</td>
<td>what is the result of strtod("0.0e99999", &ptr);?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="24">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_024.html">24</a></td>
<td>NAD</td>
<td>In subclause 7.10.1.4 The strtod function: What does '"C" locale' mean?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="25">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_025.html">25</a></td>
<td>NAD</td>
<td>What is meant by 'representable floating-point value?'</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="26">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_026.html">26</a></td>
<td>NAD</td>
<td>Can a strictly conforming program contain a string literal with '$' or '@'?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="27">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_027.html">27</a></td>
<td>C89</td>
<td>Can there be characters in the character set that are not in the required source character set?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="28">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_028.html">28</a></td>
<td>NAD</td>
<td>Do object access rules apply to dynamically allocated objects?</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="29">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_029.html">29</a></td>
<td>NAD</td>
<td>Do two types have to have the same tag to be compatible?</td>
<tdclass="none" align="center">No</td>
</tr>
<trid="30">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_030.html">30</a></td>
<td>NAD</td>
<td>Can 'sin(DBL_MAX)' result in 'errno' being set to 'EDOM'?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="31">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_031.html">31</a></td>
<td>NAD</td>
<td>Can constant expressions overflow?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="32">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_032.html">32</a></td>
<td>NAD</td>
<td>Must implementations diagnose extensions to the constant evaluation rules?</td>
<tdclass="none" align="center">No</td>
</tr>
<trid="33">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_033.html">33</a></td>
<td>NAD</td>
<td>Conformance questions around 'shall' violations outside of constraints sections</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="34">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_034.html">34</a></td>
<td>C89</td>
<td>External declarations in different scopes</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="35">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_035.html">35</a></td>
<td>NAD</td>
<td>Questions about definition of functions without a prototype</td>
<tdclass="partial" align="center">
<details><summary>Partial</summary>
Tags declared directly within an identifier list are incorrectly scoped
to the prototype rather than to the function body.
</details>
</td>
</tr>
<trid="36">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_036.html">36</a></td>
<td>NAD</td>
<td>May floating-point constants be represented with more precision than implied by its type?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="37">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_037.html">37</a></td>
<td>NAD</td>
<td>Questions about multibyte characters and Unicode</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="38">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_038.html">38</a></td>
<td>NAD</td>
<td>Questions about argument substitution during macro expansion</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="39">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_039.html">39</a></td>
<td>NAD</td>
<td>Questions about the "C" locale</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="40">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_040.html">40</a></td>
<td>NAD</td>
<td>9 unrelated questions about C89</td>
<tdclass="partial" align="center">
<details><summary>Partial</summary>
Question 6 has full support, the rest of the questions are currently unknown.
</details>
</td>
</tr>
<trid="41">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_041.html">41</a></td>
<td>NAD</td>
<td>Do characters defined in 5.2.1 impact 7.3.1?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="42">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_042.html">42</a></td>
<td>NAD</td>
<td>On the behavior of library functions and overlapping objects</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="43">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_043.html">43</a></td>
<td>C89</td>
<td>On the definition of the NULL macro</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="44">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_044.html">44</a></td>
<td>NAD</td>
<td>On the result of the offsetof macro</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="45">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_045.html">45</a></td>
<td>NAD</td>
<td>Is the behavior of freopen defined when the file is invalid?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="46">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_046.html">46</a></td>
<td>NAD</td>
<td>Use of typedef names in parameter declarations</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="47">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_047.html">47</a></td>
<td>NAD</td>
<td>Questions about declaration conformance</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="48">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_048.html">48</a></td>
<td>NAD</td>
<td>Clarifications on the abort() function</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="49">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_049.html">49</a></td>
<td>C89</td>
<td>Can strxfrm() output more characters than were input?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="50">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_050.html">50</a></td>
<td>NAD</td>
<td>Do wide string literals implicitly include <stddef.h>?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="51">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_051.html">51</a></td>
<td>NAD</td>
<td>Question on pointer arithmetic</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="52">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_052.html">52</a></td>
<td>C89</td>
<td>Editorial corrections</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="53">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_053.html">53</a></td>
<td>C89</td>
<td>Accessing a pointer to a function with a prototype through a pointer to pointer to function without a prototype</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="54">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_054.html">54</a></td>
<td>C89</td>
<td>Can the string handling functions have a length of 0?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="55">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_055.html">55</a></td>
<td>C89</td>
<td>Signal handler macros should have distinct values</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="56">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_056.html">56</a></td>
<td>NAD</td>
<td>Floating-point representation precision requirements</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="57">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_057.html">57</a></td>
<td>NAD</td>
<td>Is there an integral type for every pointer?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="58">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_058.html">58</a></td>
<td>NAD</td>
<td>Is there a limit on the number of digits processed by scanf and strtdo?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="59">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_059.html">59</a></td>
<td>NAD</td>
<td>Do types have to be completed?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="60">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_060.html">60</a></td>
<td>C89</td>
<td>Array initialization from a string literal</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="61">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_061.html">61</a></td>
<td>NAD</td>
<td>Whitespace in scanf format string</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="62">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_062.html">62</a></td>
<td>NAD</td>
<td>Can the rename function be defined to fail?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="63">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_063.html">63</a></td>
<td>Dup</td>
<td>Floating-point representation precision requirements</td>
<tdclass="full" align="center">Duplicate of <ahref="#56">56</a></td>
</tr>
<trid="64">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_064.html">64</a></td>
<td>NAD</td>
<td>Null pointer constants</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="65">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_065.html">65</a></td>
<td>C89</td>
<td>Questions on locales</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="66">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_066.html">66</a></td>
<td>NAD</td>
<td>Another question on locales</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="67">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_067.html">67</a></td>
<td>NAD</td>
<td>Integer and integral type confusion</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="68">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_068.html">68</a></td>
<td>NAD</td>
<td>'char' and signed vs unsigned integer types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="69">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_069.html">69</a></td>
<td>NAD</td>
<td>Questions about the representation of integer types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="70">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_070.html">70</a></td>
<td>NAD</td>
<td>Interchangeability of function arguments</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="71">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_071.html">71</a></td>
<td>C89</td>
<td>Enumerated types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="72">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_072.html">72</a></td>
<td>NAD</td>
<td>Definition of object and pointer arithmetic</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="73">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_073.html">73</a></td>
<td>NAD</td>
<td>Definition of object and array access</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="74">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_074.html">74</a></td>
<td>NAD</td>
<td>Alignment and structure padding</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="75">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_075.html">75</a></td>
<td>NAD</td>
<td>Alignment of allocated memory</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trclass="open" id="76">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_076.html">76</a></td>
<td>Open</td>
<td>Pointers to the end of arrays</td>
<tdalign="center">Not resolved</td>
</tr>
<trid="77">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_077.html">77</a></td>
<td>NAD</td>
<td>Stability of addresses</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="78">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_078.html">78</a></td>
<td>NAD</td>
<td>Uniqueness of addresses</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="79">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_079.html">79</a></td>
<td>NAD</td>
<td>Constancy of system library function addresses</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="80">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_080.html">80</a></td>
<td>C89</td>
<td>Merging of string constants</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="81">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_081.html">81</a></td>
<td>NAD</td>
<td>Left shift operator</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="82">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_082.html">82</a></td>
<td>C89</td>
<td>Multiple varargs</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="83">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_083.html">83</a></td>
<td>C89</td>
<td>Use of library functions</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="84">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_084.html">84</a></td>
<td>NAD</td>
<td>Incomplete type in function declaration</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="85">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_085.html">85</a></td>
<td>C89</td>
<td>Returning from main</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="86">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_086.html">86</a></td>
<td>NAD</td>
<td>Object-like macros in system headers</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="87">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_087.html">87</a></td>
<td>NAD</td>
<td>Order of evaluation</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="88">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_088.html">88</a></td>
<td>NAD</td>
<td>Compatibility of incomplete types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="89">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_089.html">89</a></td>
<td>C89</td>
<td>Multiple definitions of macros</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="90">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_090.html">90</a></td>
<td>NAD</td>
<td>Multibyte characters in formats</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="91">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_091.html">91</a></td>
<td>NAD</td>
<td>Multibyte encodings</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="92">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_092.html">92</a></td>
<td>Dup</td>
<td>Partial initialization of strings</td>
<tdclass="full" align="center">Duplicate of <ahref="#60">60</a></td>
</tr>
<trid="93">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_093.html">93</a></td>
<td>C89</td>
<td>Reservation of identifiers</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="94">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_094.html">94</a></td>
<td>NAD</td>
<td>Are constraints on function return the same as assignment?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="95">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_095.html">95</a></td>
<td>NAD</td>
<td>Is initialization as constrained as assignment?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="96">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_096.html">96</a></td>
<td>NAD</td>
<td>Arrays of incomplete types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="97">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_097.html">97</a></td>
<td>Dup</td>
<td>Use of offsetof with an incomplete type</td>
<tdclass="full" align="center">Duplicate of <ahref="#40">40</a></td>
</tr>
<trid="98">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_098.html">98</a></td>
<td>NAD</td>
<td>Pre/post increment/decrement of function or incomplete types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="99">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_099.html">99</a></td>
<td>NAD</td>
<td>ANSI/ISO C Defect report #rfg6</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="100">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_100.html">100</a></td>
<td>Dup</td>
<td>Defect with the return statement</td>
<tdclass="full" align="center">Duplicate of <ahref="#1">1</a></td>
</tr>
<trid="101">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_101.html">101</a></td>
<td>C89</td>
<td>Type qualifiers and "as if by assignment"</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="102">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_102.html">102</a></td>
<td>NAD</td>
<td>Tag redeclaration constraints</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="103">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_103.html">103</a></td>
<td>NAD</td>
<td>Formal parameters of incomplete type</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="104">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_104.html">104</a></td>
<td>Dup</td>
<td>Incomplete tag types in a parameter list</td>
<tdclass="full" align="center">Duplicate of <ahref="#84">84</a></td>
</tr>
<trid="105">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_105.html">105</a></td>
<td>Dup</td>
<td>Precedence of requirements on compatible types</td>
<tdclass="full" align="center">Duplicate of <ahref="#17">17</a></td>
</tr>
<trid="106">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_106.html">106</a></td>
<td>NAD</td>
<td>When can you dereference a void pointer?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="107">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_107.html">107</a></td>
<td>NAD</td>
<td>Type requirements of the assert macro parameter</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="108">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_108.html">108</a></td>
<td>NAD</td>
<td>Can a macro identifier hide a keyword?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="109">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_109.html">109</a></td>
<td>NAD</td>
<td>Are undefined values and undefined behavior the same?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="110">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_110.html">110</a></td>
<td>Dup</td>
<td>Formal parameters having array-of-non-object types</td>
<tdclass="full" align="center">Duplicate of <ahref="#47">47</a></td>
</tr>
<trid="111">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_111.html">111</a></td>
<td>NAD</td>
<td>Conversion of pointer-to-qualified type values to type (void*) values</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="112">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_112.html">112</a></td>
<td>NAD</td>
<td>Null pointer constants and relational comparisons</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="113">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_113.html">113</a></td>
<td>NAD</td>
<td>Return expressions in functions declared to return qualified void</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="114">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_114.html">114</a></td>
<td>NAD</td>
<td>Initialization of multi-dimensional char array objects</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="115">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_115.html">115</a></td>
<td>NAD</td>
<td>Member declarators as declarators</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="116">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_116.html">116</a></td>
<td>NAD</td>
<td>Implicit unary & applied to register arrays</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="117">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_117.html">117</a></td>
<td>NAD</td>
<td>Abstract semantics, sequence points, and expression evaluation</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="118">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_118.html">118</a></td>
<td>C89</td>
<td>Completion point for enumerated types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="119">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_119.html">119</a></td>
<td>NAD</td>
<td>Initialization of multi-dimensional array objects</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="120">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_120.html">120</a></td>
<td>NAD</td>
<td>Semantics of assignment to (and initialization of) bit-fields</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="121">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_121.html">121</a></td>
<td>NAD</td>
<td>Conversions of pointer values to integral types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="122">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_122.html">122</a></td>
<td>Dup</td>
<td>Conversion/widening of bit-fields</td>
<tdclass="full" align="center">Duplicate of <ahref="#15">15</a></td>
</tr>
<trid="123">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_123.html">123</a></td>
<td>NAD</td>
<td>'Type categories' and qualified types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="124">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_124.html">124</a></td>
<td>C89</td>
<td>Casts to 'a void type' versus casts to 'the void type'</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="125">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_125.html">125</a></td>
<td>NAD</td>
<td>Using things declared as 'extern (qualified) void'</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="126">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_126.html">126</a></td>
<td>NAD</td>
<td>What does 'synonym' mean with respect to typedef names?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="127">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_127.html">127</a></td>
<td>Dup</td>
<td>Composite type of an enumerated type and an integral type</td>
<tdclass="full" align="center">Duplicate of <ahref="#13">13</a></td>
</tr>
<trid="128">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_128.html">128</a></td>
<td>NAD</td>
<td>Editorial issue relating to tag declarations in type specifiers</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="129">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_129.html">129</a></td>
<td>NAD</td>
<td>Tags and name spaces</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="130">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_130.html">130</a></td>
<td>NAD</td>
<td>Guarantees when writing text to a stream</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="131">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_131.html">131</a></td>
<td>C89</td>
<td>const member qualification and assignment</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="132">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_132.html">132</a></td>
<td>Dup</td>
<td>Can undefined behavior occur at translation time, or only at run time?</td>
<tdclass="full" align="center">Duplicate of <ahref="#109">109</a></td>
</tr>
<trid="133">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_133.html">133</a></td>
<td>NAD</td>
<td>Undefined behavior not previously listed in subclause G2</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="134">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_134.html">134</a></td>
<td>NAD</td>
<td>What is an 'error number' for strerror?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="135">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_135.html">135</a></td>
<td>NAD</td>
<td>Can the size argument to 'fwrite' be zero?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="136">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_136.html">136</a></td>
<td>NAD</td>
<td>'mktime' and time gaps</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="137">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_137.html">137</a></td>
<td>NAD</td>
<td>'printf' and negative floating point values</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="138">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_138.html">138</a></td>
<td>C89</td>
<td>Is there an allocated storage duration?</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="139">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_139.html">139</a></td>
<td>C89</td>
<td>Compatibility of complete and incomplete types</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="140">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_140.html">140</a></td>
<td>NAD</td>
<td>Behavior of 'setvbuf'</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="141">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_141.html">141</a></td>
<td>NAD</td>
<td>What is the meaning of EOF?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="142">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_142.html">142</a></td>
<td>C89</td>
<td>Reservation of macro names</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="143">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_143.html">143</a></td>
<td>C89</td>
<td>'fopen' modes</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="144">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_144.html">144</a></td>
<td>C89</td>
<td>Preprocessing of preprocessing directives</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="145">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_145.html">145</a></td>
<td>C89</td>
<td>Constant expressions</td>
<tdclass="unknown" align="center">Unknown</td>
</tr>
<trid="146">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_146.html">146</a></td>
<td>C89</td>
<td>Nugatory constraint</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="147">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_147.html">147</a></td>
<td>C89</td>
<td>Sequence points in library functions</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="148">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_148.html">148</a></td>
<td>NAD</td>
<td>Defining library functions</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="149">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_149.html">149</a></td>
<td>C89</td>
<td>The term "variable"</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="150">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_150.html">150</a></td>
<td>C89</td>
<td>Initialization of a char array from a string literal</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="151">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_151.html">151</a></td>
<td>C89</td>
<td>Behavior of 'printf' and flags</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="152">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_152.html">152</a></td>
<td>NAD</td>
<td>Can you 'longjmp' out of a signal handler?</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="153">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_153.html">153</a></td>
<td>Dup</td>
<td>Can 'f()' be considered a call to a function-like macro with one empty argument?</td>
<tdclass="unknown" align="center">Duplicate of <ahref="#3">3</a></td>
</tr>
<trid="154">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_154.html">154</a></td>
<td>NAD</td>
<td>Consistency of implementation-defined values</td>
<tdclass="full" align="center">Yes</td>
</tr>
<trid="155">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_155.html">155</a></td>
<td>C89</td>
<td>Zero-sized allocations</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="156">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_156.html">156</a></td>
<td>C89</td>
<td>Closed streams</td>
<tdclass="na" align="center">N/A</td>
</tr>
<trid="157">
<td><ahref="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_157.html">157</a></td>
<td>C89</td>
<td>Legitimacy of type synonyms</td>
<tdclass="full" align="center">Yes</td>
