engEvalString (Fortran) - Evaluate expression in string - MATLAB (original) (raw)
Main Content
Evaluate expression in string
Fortran Syntax
#include "engine.h" integer4 engEvalString(ep, string) mwPointer ep character(*) string
Description
engEvalString evaluates the expression contained instring for the MATLAB® engine session, ep, previously started byengOpen.
UNIX Operating Systems
On UNIX® systems, engEvalString sends commands to the MATLAB workspace by writing down a pipe connected to the MATLAB_stdin_ process. MATLAB reads back from stdout any output resulting from the command that ordinarily appears on the screen, into the buffer defined byengOutputBuffer.
To turn off output buffering in Fortran, use:
Microsoft Windows Operating Systems
On a Windows® system, engEvalString communicates with MATLAB using a Component Object Model (COM) interface.
Input Arguments
Pointer to engine, specified as mwPointer.
Expression to evaluate, specified as character*(*).
Output Arguments
Status, returned as integer*4. The function returns1 if the engine session is no longer running or the engine pointer is invalid or NULL. Otherwise, returns 0 even if the MATLAB engine session cannot evaluate the command.
Examples
To open an example, type:
edit([fullfile(matlabroot,"extern","examples","engmat","filename")]);
where filename is:
- fengdemo.F for a Fortran example.
Version History
Introduced before R2006a