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<div id="projectname">libgutenprint API Reference <span id="projectnumber">5.2.7</span></div>
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<a href="#typedef-members">Typedefs</a> |
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<div class="title">array</div> </div>
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<p>The array is a simple "two-dimensional array of numbers" data structure.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct stp_array </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The array opaque data type. <a href="#ga26a474575a39c1c36ad520b95aa813b0"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gaa3d385d3e2f248b1c1ac88d5f103e9a2">stp_array_create</a> (int x_size, int y_size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create a new array. <a href="#gaa3d385d3e2f248b1c1ac88d5f103e9a2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gaafb2573df35220ef9be3f6ba4b8c871b">stp_array_destroy</a> (<a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destroy an array. <a href="#gaafb2573df35220ef9be3f6ba4b8c871b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gaaa9bf798890e01b4bbce8cda45615021">stp_array_copy</a> (<a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *dest, const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *source)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy an array. <a href="#gaaa9bf798890e01b4bbce8cda45615021"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gad0b50228ca40df79196197f9c21f4b56">stp_array_create_copy</a> (const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy and allocate an array. <a href="#gad0b50228ca40df79196197f9c21f4b56"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gae6fb91b246ef5abd388927cb9674503e">stp_array_set_size</a> (<a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array, int x_size, int y_size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Resize an array. <a href="#gae6fb91b246ef5abd388927cb9674503e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gafe61db801ab3b0326646178e536dd161">stp_array_get_size</a> (const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array, int *x_size, int *y_size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the size of an array. <a href="#gafe61db801ab3b0326646178e536dd161"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gaea0493f5bec9c5c185679adfde3edc9a">stp_array_set_data</a> (<a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array, const double *data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the data in an array. <a href="#gaea0493f5bec9c5c185679adfde3edc9a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gae0d44ee80048189d244b16f231c54b80">stp_array_get_data</a> (const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array, size_t *size, const double **data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the data in an array. <a href="#gae0d44ee80048189d244b16f231c54b80"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gad6b95b2efd500007b098594826f4467f">stp_array_set_point</a> (<a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array, int x, int y, double data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the data at a single point in the array. <a href="#gad6b95b2efd500007b098594826f4467f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#ga9078af984a5e1ec80a6068bdb51c9a6d">stp_array_get_point</a> (const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array, int x, int y, double *data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the data at a single point in the array. <a href="#ga9078af984a5e1ec80a6068bdb51c9a6d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="group__sequence.html#ga327a46aa1d782a4cd53abf306068e272">stp_sequence_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__array.html#gae05ba5cfe8c03e2435348d6c5488d87e">stp_array_get_sequence</a> (const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> *array)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the underlying stp_sequence_t. <a href="#gae05ba5cfe8c03e2435348d6c5488d87e"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<p>The array is a simple "two-dimensional array of numbers" data structure. </p>
<p>array "inherits" from the sequence data structure (implemented via containment). </p>
<hr/><h2>Typedef Documentation</h2>
<a class="anchor" id="ga26a474575a39c1c36ad520b95aa813b0"></a><!-- doxytag: member="array.h::stp_array_t" ref="ga26a474575a39c1c36ad520b95aa813b0" args="" -->
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<td class="memname">typedef struct stp_array <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a></td>
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<p>The array opaque data type. </p>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="gaaa9bf798890e01b4bbce8cda45615021"></a><!-- doxytag: member="array.h::stp_array_copy" ref="gaaa9bf798890e01b4bbce8cda45615021" args="(stp_array_t *dest, const stp_array_t *source)" -->
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<td class="memname">void stp_array_copy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>dest</em>, </td>
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<td class="paramtype">const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
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<p>Copy an array. </p>
<p>Both dest and source must be valid arrays previously created with <a class="el" href="group__array.html#gaa3d385d3e2f248b1c1ac88d5f103e9a2" title="Create a new array.">stp_array_create()</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">dest</td><td>the destination array. </td></tr>
<tr><td class="paramname">source</td><td>the source array. </td></tr>
</table>
</dd>
</dl>
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<a class="anchor" id="gaa3d385d3e2f248b1c1ac88d5f103e9a2"></a><!-- doxytag: member="array.h::stp_array_create" ref="gaa3d385d3e2f248b1c1ac88d5f103e9a2" args="(int x_size, int y_size)" -->
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<td class="memname"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a>* stp_array_create </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>x_size</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>y_size</em> </td>
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<p>Create a new array. </p>
<p>The total size of the array will be (x_size * y_size). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">x_size</td><td>the number of "columns". </td></tr>
<tr><td class="paramname">y_size</td><td>the number of "rows". </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the newly created array. </dd></dl>
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<a class="anchor" id="gad0b50228ca40df79196197f9c21f4b56"></a><!-- doxytag: member="array.h::stp_array_create_copy" ref="gad0b50228ca40df79196197f9c21f4b56" args="(const stp_array_t *array)" -->
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<td class="memname"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a>* stp_array_create_copy </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>array</em></td><td>)</td>
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<p>Copy and allocate an array. </p>
<p>dest will be created, and then the contents of source will be copied into it. dest must not have been previously allocated with <a class="el" href="group__array.html#gaa3d385d3e2f248b1c1ac88d5f103e9a2" title="Create a new array.">stp_array_create()</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the source array. </td></tr>
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</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>the new copy of the array. </dd></dl>
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<a class="anchor" id="gaafb2573df35220ef9be3f6ba4b8c871b"></a><!-- doxytag: member="array.h::stp_array_destroy" ref="gaafb2573df35220ef9be3f6ba4b8c871b" args="(stp_array_t *array)" -->
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<td class="memname">void stp_array_destroy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
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<p>Destroy an array. </p>
<p>It is an error to destroy the array more than once. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to destroy. </td></tr>
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</dd>
</dl>
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<a class="anchor" id="gae0d44ee80048189d244b16f231c54b80"></a><!-- doxytag: member="array.h::stp_array_get_data" ref="gae0d44ee80048189d244b16f231c54b80" args="(const stp_array_t *array, size_t *size, const double **data)" -->
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<td class="memname">void stp_array_get_data </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>array</em>, </td>
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<td class="paramtype">size_t * </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramtype">const double ** </td>
<td class="paramname"><em>data</em> </td>
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<td>)</td>
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<p>Get the data in an array. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to get the data from. </td></tr>
<tr><td class="paramname">size</td><td>the number of elements in the array (x_size * y_size) are stored in the size_t pointed to. </td></tr>
<tr><td class="paramname">data</td><td>a pointer to the first element of an array of doubles is stored in a pointer to double*. <div class="fragment"><pre class="fragment"> <a class="code" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0" title="The array opaque data type.">stp_array_t</a> *array;
<span class="keywordtype">size_t</span> size;
<span class="keywordtype">double</span> *data;
<a class="code" href="group__array.html#gae0d44ee80048189d244b16f231c54b80" title="Get the data in an array.">stp_array_get_data</a>(array, &size, &data);
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<a class="anchor" id="ga9078af984a5e1ec80a6068bdb51c9a6d"></a><!-- doxytag: member="array.h::stp_array_get_point" ref="ga9078af984a5e1ec80a6068bdb51c9a6d" args="(const stp_array_t *array, int x, int y, double *data)" -->
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<td class="memname">int stp_array_get_point </td>
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<td class="paramtype">const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>y</em>, </td>
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<td class="paramtype">double * </td>
<td class="paramname"><em>data</em> </td>
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<p>Get the data at a single point in the array. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to use. </td></tr>
<tr><td class="paramname">x</td><td>the x location. </td></tr>
<tr><td class="paramname">y</td><td>the y location. </td></tr>
<tr><td class="paramname">data</td><td>the datum is stored in the double pointed to. </td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>1 on success, 0 on failure. </dd></dl>
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<a class="anchor" id="gae05ba5cfe8c03e2435348d6c5488d87e"></a><!-- doxytag: member="array.h::stp_array_get_sequence" ref="gae05ba5cfe8c03e2435348d6c5488d87e" args="(const stp_array_t *array)" -->
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<td class="memname">const <a class="el" href="group__sequence.html#ga327a46aa1d782a4cd53abf306068e272">stp_sequence_t</a>* stp_array_get_sequence </td>
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<p>Get the underlying stp_sequence_t. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to use. </td></tr>
</table>
</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the (constant) stp_sequence_t. </dd></dl>
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<a class="anchor" id="gafe61db801ab3b0326646178e536dd161"></a><!-- doxytag: member="array.h::stp_array_get_size" ref="gafe61db801ab3b0326646178e536dd161" args="(const stp_array_t *array, int *x_size, int *y_size)" -->
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<td class="memname">void stp_array_get_size </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>array</em>, </td>
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<td class="paramtype">int * </td>
<td class="paramname"><em>x_size</em>, </td>
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<td class="paramtype">int * </td>
<td class="paramname"><em>y_size</em> </td>
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<td>)</td>
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<p>Get the size of an array. </p>
<p>The current x and y sizes are stored in the integers pointed to by x_size and y_size. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to get the size of. </td></tr>
<tr><td class="paramname">x_size</td><td>a pointer to an integer to store the x size in. </td></tr>
<tr><td class="paramname">y_size</td><td>a pointer to an integer to store the y size in. </td></tr>
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</dd>
</dl>
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<a class="anchor" id="gaea0493f5bec9c5c185679adfde3edc9a"></a><!-- doxytag: member="array.h::stp_array_set_data" ref="gaea0493f5bec9c5c185679adfde3edc9a" args="(stp_array_t *array, const double *data)" -->
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<td class="memname">void stp_array_set_data </td>
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<td class="paramtype"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>array</em>, </td>
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<td class="paramtype">const double * </td>
<td class="paramname"><em>data</em> </td>
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<p>Set the data in an array. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to set. </td></tr>
<tr><td class="paramname">data</td><td>a pointer to the first member of an array containing the data to set. This array must be at least as long as (x_size * y_size). </td></tr>
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<a class="anchor" id="gad6b95b2efd500007b098594826f4467f"></a><!-- doxytag: member="array.h::stp_array_set_point" ref="gad6b95b2efd500007b098594826f4467f" args="(stp_array_t *array, int x, int y, double data)" -->
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<td class="memname">int stp_array_set_point </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>array</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>x</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
<td class="paramname"><em>y</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
<td class="paramname"><em>data</em> </td>
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<p>Set the data at a single point in the array. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to use. </td></tr>
<tr><td class="paramname">x</td><td>the x location. </td></tr>
<tr><td class="paramname">y</td><td>the y location. </td></tr>
<tr><td class="paramname">data</td><td>the datum to set. </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>1 on success, 0 on failure. </dd></dl>
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<a class="anchor" id="gae6fb91b246ef5abd388927cb9674503e"></a><!-- doxytag: member="array.h::stp_array_set_size" ref="gae6fb91b246ef5abd388927cb9674503e" args="(stp_array_t *array, int x_size, int y_size)" -->
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<td class="memname">void stp_array_set_size </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__array.html#ga26a474575a39c1c36ad520b95aa813b0">stp_array_t</a> * </td>
<td class="paramname"><em>array</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>x_size</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
<td class="paramname"><em>y_size</em> </td>
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<td>)</td>
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<p>Resize an array. </p>
<p>Resizing an array will destroy all data stored in the array. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>the array to resize. </td></tr>
<tr><td class="paramname">x_size</td><td>the new number of "columns". </td></tr>
<tr><td class="paramname">y_size</td><td>the new number of "rows". </td></tr>
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</dd>
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