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<h1>write_mps, write_freemps, write_MPS, write_freeMPS, MPS_writefileex</h1>
<p>
Write an mps model.</p>
<p><b>unsigned char write_MPS(lprec </b>*<i>lp</i><b>, FILE </b>*<i>stream</i><b>);</b></p>
<p><b>unsigned char write_freeMPS(lprec </b>*<i>lp</i><b>, FILE </b>*<i>stream</i><b>);</b></p>
<P><B>unsigned char write_mps(lprec </B>*<i>lp</i><b>, char </b>*<I>filename</I><B>);</B></P>
<P><B>unsigned char write_freemps(lprec </B>*<i>lp</i><b>, char </b>*<I>filename</I><B>);</B></P>
<P><B>unsigned char MPS_writefileex(lprec </B>*<i>lp</i><b>, int </b><i>typeMPS</I><B>, void </b>*<I>userhandle</I><B>, (void *userhandle, char *buf) </b><i>write_modeldata_routine</i><b>);</B></P>
<p class="label">
<b>Return Value</b></p>
<p>
The routines return TRUE (1) if the operation was
successful. A return value of FALSE (0) indicates an error.<br>
Note that row entry mode must be off, else this function also fails. See <A HREF="set_add_rowmode.htm">set_add_rowmode</A>
</p>
<p class="label">
<b>Parameters</b></p>
<p class="dt"><i>lp</i></p>
<p class="indent">Pointer to previously created lp model. See return value of <A href="make_lp.htm">
make_lp</A>, <A HREF="copy_lp.htm">copy_lp</A>, <A href="read_lp.htm">read_lp,
read_LP</A>, <A href="read_mps.htm">read_mps, read_freemps, read_MPS, read_freeMPS</A>, <A HREF="read_XLI.htm">read_XLI</A></p>
<p class="dt">
<i>stream</i></p>
<p class="indent">
Pointer to <b>FILE</b> structure.</p>
<P class="dt"><I>filename</I></P>
<P class="indent">
Filename to write the mps model to.
<P class="dt"><I>typeMPS</I></P>
<P class="indent">
type of the MPS file. Can be one of the following values:</p>
<TABLE id="Table3" cellSpacing="1" cellPadding="1" width="100%" border="1">
<TR>
<TD>MPSFIXED (1)</TD>
<TD>Fixed MPS format</TD>
</TR>
<TR>
<TD>MPSFREE (2)</TD>
<TD>Free MPS format</TD>
</TR>
</TABLE>
<P class="dt"><I>write_modeldata_routine</I></P>
<P class="indent">
Routine to write the MPS model to. The routine has following definition:<br>
typedef int (__WINAPI write_modeldata_func)(void *userhandle, char *buf);<br>
userhandle is the second parameter passed to write_lp_ex<br>
buf is a shrunk of data.
<p class="label">
<b>Remarks</b></p>
<P>
The <b>write_mps</b>, <b>write_freemps</b>, <B>write_MPS</B>, <B>write_freeMPS</B> functions write the model to <i>filename</i>.
<B>write_MPS</B>, <B>write_freeMPS</B> need a file pointer to an already opened file. <B>write_mps</B>, <B>write_freemps</B>
accept the name of the file. The latter function will generally be more
convenient. MPS_writefileex writes the model via a user defined routine.</P>
When stream or filename are NULL, then output is written to output set by
<A href="set_output.htm">set_outputstream, set_outputfile</A>. By default this is stdout.
<P>
The model in the file will be in <a href="mps-format.htm">mps-format</a>.
The write_free* routines write files in free MPS format.
The other routines write files in fixed MPS format.
</P>
<p class="label">
<b>Example</b></p>
<pre><code>#include <stdio.h>
#include <stdlib.h>
#include "lp_lib.h"
int main(void)
{
lprec *lp;
/* Create a new LP model */
lp = make_lp(0, 0);
if(lp == NULL) {
fprintf(stderr, "Unable to create new LP model\n");
return(1);
}
write_mps(lp, "model.mps");
delete_lp(lp);
return(0);
}
</code></pre>
<p>
<A HREF="lp_solveAPIreference.htm">lp_solve API reference</A></p>
<p>
<b>See Also</b> <A HREF="delete_lp.htm">delete_lp</A>, <A HREF="free_lp.htm">free_lp</A>,
<A HREF="make_lp.htm">make_lp</A>, <A HREF="copy_lp.htm">copy_lp</A>,<A HREF="read_mps.htm">read_mps, read_freemps, read_MPS, read_freeMPS</A>, <A HREF="read_XLI.htm">read_XLI</A>,
<A HREF="read_lp.htm">read_lp, read_LP</A>, <A HREF="write_lp.htm">write_lp,
write_LP, write_lpex</A>, <A HREF="write_XLI.htm">read_lp, read_LP</A></p>
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