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<div class="textblock"><code>#include &lt;SDL_test.h&gt;</code><br/>
<code>#include &quot;<a class="el" href="_s_d_l__visualtest__variator__common_8h_source.html">SDL_visualtest_variator_common.h</a>&quot;</code><br/>
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Functions</h2></td></tr>
<tr class="memitem:aafcecc06c8feb24b6f6a509bfa9db681"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="variator__common_8c.html#aafcecc06c8feb24b6f6a509bfa9db681">SDLVisualTest_NextValue</a> (<a class="el" href="union_s_d_l_visual_test___s_u_t_option_value.html">SDLVisualTest_SUTOptionValue</a> *var, <a class="el" href="struct_s_d_l_visual_test___s_u_t_option.html">SDLVisualTest_SUTOption</a> *opt)</td></tr>
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<tr class="memitem:ad981c2efab849e76dc878ef8da9d6017"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="variator__common_8c.html#ad981c2efab849e76dc878ef8da9d6017">SDLVisualTest_MakeStrFromVariation</a> (<a class="el" href="struct_s_d_l_visual_test___variation.html">SDLVisualTest_Variation</a> *variation, <a class="el" href="struct_s_d_l_visual_test___s_u_t_config.html">SDLVisualTest_SUTConfig</a> *config, char *buffer, int size)</td></tr>
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<tr class="memitem:ac87934906c51364778dc910ebca47b6c"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="variator__common_8c.html#ac87934906c51364778dc910ebca47b6c">SDLVisualTest_InitVariation</a> (<a class="el" href="struct_s_d_l_visual_test___variation.html">SDLVisualTest_Variation</a> *variation, <a class="el" href="struct_s_d_l_visual_test___s_u_t_config.html">SDLVisualTest_SUTConfig</a> *config)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Source file for some common functionality used by variators. </p>
</div><h2 class="groupheader">Function Documentation</h2>
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<td class="memname">int SDLVisualTest_InitVariation </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_s_d_l_visual_test___variation.html">SDLVisualTest_Variation</a> *&#160;</td>
<td class="paramname"><em>variation</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_s_d_l_visual_test___s_u_t_config.html">SDLVisualTest_SUTConfig</a> *&#160;</td>
<td class="paramname"><em>config</em>&#160;</td>
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<p>Initializes the variation using the following rules:</p>
<ul>
<li>Boolean options are initialized to SDL_FALSE.</li>
<li>Integer options are initialized to the minimum valid value they can hold.</li>
<li>Enum options are initialized to the first element in the list of values they can take.</li>
<li>String options are initialized to the name of the option.</li>
</ul>
<dl class="section return"><dt>Returns</dt><dd>1 on success, 0 on failure. </dd></dl>
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<td class="memname">int SDLVisualTest_MakeStrFromVariation </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_s_d_l_visual_test___variation.html">SDLVisualTest_Variation</a> *&#160;</td>
<td class="paramname"><em>variation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_s_d_l_visual_test___s_u_t_config.html">SDLVisualTest_SUTConfig</a> *&#160;</td>
<td class="paramname"><em>config</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>buffer</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
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<p>Converts a variation object into a string of command line arguments.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">variation</td><td>Variation object to be converted. </td></tr>
<tr><td class="paramname">config</td><td>Config object for the SUT. </td></tr>
<tr><td class="paramname">buffer</td><td>Pointer to the buffer the arguments string will be copied into. </td></tr>
<tr><td class="paramname">size</td><td>Size of the buffer.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>1 on success, 0 on failure </dd></dl>
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<td class="memname">int SDLVisualTest_NextValue </td>
<td>(</td>
<td class="paramtype"><a class="el" href="union_s_d_l_visual_test___s_u_t_option_value.html">SDLVisualTest_SUTOptionValue</a> *&#160;</td>
<td class="paramname"><em>var</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_s_d_l_visual_test___s_u_t_option.html">SDLVisualTest_SUTOption</a> *&#160;</td>
<td class="paramname"><em>opt</em>&#160;</td>
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<p>"Increments" the value of the option by one and returns the carry. We wrap around to the initial value on overflow which makes the carry one. For example: "incrementing" an SDL_FALSE option makes it SDL_TRUE with no carry, and "incrementing" an SDL_TRUE option makes it SDL_FALSE with carry one. For integers, a random value in the valid range for the option is used.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">var</td><td>Value of the option </td></tr>
<tr><td class="paramname">opt</td><td>Object with metadata about the option</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>1 if there is a carry for enum and bool type options, 0 otherwise. 1 is always returned for integer and string type options. -1 is returned on error. </dd></dl>
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