Read-only pointer to variable from another workspace
#include "mex.h" const mxArray *mexGetVariablePtr(const char *workspace, const char *varname);
#include "fintrf.h" mwPointer mexGetVariablePtr(workspace, varname) character*(*) workspace, varname
Specifies which workspace you want mexGetVariablePtr to search. The possible values are
Search for the variable in the base workspace.
Search for the variable in the caller workspace.
Search for the variable in the global workspace.
Name of a variable in another workspace. This is a variable name, not an mxArray pointer.
Call mexGetVariablePtr to get a read-only pointer to the specified variable, varname, into your MEX-file workspace. This command is useful for examining an mxArray's data and characteristics. If you want to change data or characteristics, use mexGetVariable (along with mexPutVariable) instead of mexGetVariablePtr.
If you simply want to examine data or characteristics, mexGetVariablePtr offers superior performance because the caller wants to pass only a pointer to the array.