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 <span id="projectnumber">3.0.2</span>
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<li class="navelem"><a class="el" href="dir_8d855866ba5d436d839c7fc557836cd9.html">libavutil</a></li> </ul>
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<div class="title">attributes.h</div> </div>
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<div class="contents">
<a href="attributes_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at></span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This file is part of FFmpeg.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * FFmpeg is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * FFmpeg is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * License along with FFmpeg; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"></span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * @file</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * Macro definitions for various function/variable attributes</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#ifndef AVUTIL_ATTRIBUTES_H</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor">#define AVUTIL_ATTRIBUTES_H</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifdef __GNUC__</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="attributes_8h.html#a69fc4855d57a0b3471e795107677e5c4"> 30</a></span> <span class="preprocessor"></span><span class="preprocessor"># define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="attributes_8h.html#ad3ce0a0e58bc7f1ad004e948d0ef87f7"> 31</a></span> <span class="preprocessor"></span><span class="preprocessor"># define AV_GCC_VERSION_AT_MOST(x,y) (__GNUC__ < (x) || __GNUC__ == (x) && __GNUC_MINOR__ <= (y))</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor"># define AV_GCC_VERSION_AT_LEAST(x,y) 0</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span><span class="preprocessor"># define AV_GCC_VERSION_AT_MOST(x,y) 0</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#ifndef av_always_inline</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,1)</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="attributes_8h.html#a28f50f4c125959216885f01d56dbe866"> 39</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_always_inline __attribute__((always_inline)) inline</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(_MSC_VER)</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span><span class="preprocessor"># define av_always_inline __forceinline</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span><span class="preprocessor"># define av_always_inline inline</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#ifndef av_extern_inline</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span><span class="preprocessor">#if defined(__ICL) && __ICL >= 1210 || defined(__GNUC_STDC_INLINE__)</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor"></span><span class="preprocessor"># define av_extern_inline extern inline</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="attributes_8h.html#ad91a09f8aa5a61759896a5609580dc1c"> 51</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_extern_inline inline</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,4)</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="attributes_8h.html#a93f17e0f0b53a66e7b5eceb3dff2918f"> 56</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_warn_unused_result __attribute__((warn_unused_result))</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span><span class="preprocessor"># define av_warn_unused_result</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,1)</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="attributes_8h.html#a299375f4aab80f039568d03b5c2f4214"> 62</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_noinline __attribute__((noinline))</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(_MSC_VER)</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"></span><span class="preprocessor"># define av_noinline __declspec(noinline)</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span><span class="preprocessor"># define av_noinline</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,1)</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="attributes_8h.html#adc7fd5bb40d84900a3a30ef3318020c2"> 70</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_pure __attribute__((pure))</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"></span><span class="preprocessor"># define av_pure</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(2,6)</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="attributes_8h.html#a9eaead3cde73464fd66bab4cef9307ad"> 76</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_const __attribute__((const))</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span><span class="preprocessor"># define av_const</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(4,3)</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="attributes_8h.html#abeeb324fff79a5335d36774704e2475c"> 82</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_cold __attribute__((cold))</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"></span><span class="preprocessor"># define av_cold</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(4,1) && !defined(__llvm__)</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="attributes_8h.html#a767318f92f3dcb0a604c6beaa910eb0c"> 88</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_flatten __attribute__((flatten))</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"></span><span class="preprocessor"># define av_flatten</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,1)</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="attributes_8h.html#aa6d076561d3a9eea4729ee632652de02"> 94</a></span> <span class="preprocessor"></span><span class="preprocessor"># define attribute_deprecated __attribute__((deprecated))</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(_MSC_VER)</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor"></span><span class="preprocessor"># define attribute_deprecated __declspec(deprecated)</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor"></span><span class="preprocessor"># define attribute_deprecated</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> * Disable warnings about deprecated features</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * This is useful for sections of code kept for backward compatibility and</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * scheduled for removal.</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#ifndef AV_NOWARN_DEPRECATED</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor"></span><span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(4,6)</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="attributes_8h.html#ab1b83f9b8188e770cc29043104205f53"> 108</a></span> <span class="preprocessor"></span><span class="preprocessor"># define AV_NOWARN_DEPRECATED(code) \</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor"> _Pragma("GCC diagnostic push") \</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="preprocessor"> _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor"> code \</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="preprocessor"> _Pragma("GCC diagnostic pop")</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(_MSC_VER)</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor"></span><span class="preprocessor"># define AV_NOWARN_DEPRECATED(code) \</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor"> __pragma(warning(push)) \</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor"> __pragma(warning(disable : 4996)) \</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor"> code; \</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor"> __pragma(warning(pop))</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor"></span><span class="preprocessor"># define AV_NOWARN_DEPRECATED(code) code</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="preprocessor">#if defined(__GNUC__)</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="attributes_8h.html#a7ca8a3900269f92fcc7b68235dea7787"> 126</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_unused __attribute__((unused))</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor"></span><span class="preprocessor"># define av_unused</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> * Mark a variable as used and prevent the compiler from optimizing it</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> * away. This is useful for variables accessed only from inline</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> * assembler without the compiler being aware.</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,1)</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="attributes_8h.html#aa402443f9068fb645e9a55f41fc99e09"> 137</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_used __attribute__((used))</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor"></span><span class="preprocessor"># define av_used</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(3,3)</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="attributes_8h.html#ae7fb094d0e833b9afe387f7283dbbad3"> 143</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_alias __attribute__((may_alias))</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor"></span><span class="preprocessor"># define av_alias</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="preprocessor">#if defined(__GNUC__) && !defined(__INTEL_COMPILER) && !defined(__clang__)</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="attributes_8h.html#a934ff195492486f0f9d22770103e757b"> 149</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_uninit(x) x=x</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="preprocessor"></span><span class="preprocessor"># define av_uninit(x) x</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="preprocessor">#ifdef __GNUC__</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="attributes_8h.html#a4887afda7f138d25d3f0dd843ca0ac18"> 155</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_builtin_constant_p __builtin_constant_p</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="attributes_8h.html#a4b078d4b8e02c0f452ee1dcaa7d983d3"> 156</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos)))</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor"></span><span class="preprocessor"># define av_builtin_constant_p(x) 0</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="preprocessor"></span><span class="preprocessor"># define av_printf_format(fmtpos, attrpos)</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="preprocessor">#if AV_GCC_VERSION_AT_LEAST(2,5)</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="attributes_8h.html#ac85a6b34744701495efddc98c65e8afa"> 163</a></span> <span class="preprocessor"></span><span class="preprocessor"># define av_noreturn __attribute__((noreturn))</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="preprocessor"></span><span class="preprocessor"># define av_noreturn</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="preprocessor">#endif </span><span class="comment">/* AVUTIL_ATTRIBUTES_H */</span><span class="preprocessor"></span></div>
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