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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/Sys/PetscDLLibrarySym.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscDLLibrarySym"><H1>PetscDLLibrarySym</H1></A>
Load a symbol from the dynamic link libraries.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Sys/PetscDLLibrarySym.html#PetscDLLibrarySym">PetscDLLibrarySym</A>(<A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A> comm,<A HREF="../Sys/PetscDLLibrary.html#PetscDLLibrary">PetscDLLibrary</A> *outlist,const char path[],const char insymbol[],void **value)
</PRE>
Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>comm </B></TD><TD>- communicator that will open the library
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>outlist </B></TD><TD>- list of already open libraries that may contain symbol (can be NULL and only the executable is searched for the function)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>path </B></TD><TD>- optional complete library name (if provided checks here before checking outlist)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>insymbol </B></TD><TD>- name of symbol
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>value </B></TD><TD>- if symbol not found then this value is set to NULL
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Symbol can be of the form
[/path/libname[.so.1.0]:]functionname[()] where items in [] denote optional
<P>
Will attempt to (retrieve and) open the library if it is not yet been opened.
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/sys/dll/dl.c.html#PetscDLLibrarySym">src/sys/dll/dl.c</A>
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