MathLink C Function

MLEvaluateString()

int MLEvaluateString(MLINK link, char *string)
sends a string to Mathematica for evaluation, and discards any packets sent in response.

MORE INFORMATION

The code for MLEvaluateString() is not included in the MathLink library, but is generated automatically by mcc or mprep in processing MathLink template files.

MLEvaluateString(lp, "Print[\"string\"]") will cause string to be printed in a Mathematica session at the other end of the link.

MLEvaluateString() is only available for use in mprep MathLink template programs.

MLEvaluateString() returns 0 on failure and a nonzero value on success.

MLEvaluateString() is declared in the MathLink header file mathlink.h.

EXAMPLES

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Basic Examples (1)

:Begin:
:Function: f
:Pattern: KernelTime[]
:Arguments: {}
:ArgumentTypes: Manual
:ReturnType: Manual
:End:

#include "mathlink.h"

/* read the Kernel's response from evaluating the expression
   {Date[],$TimeZone} */

void f(void)
{
    /* Pretend we are not in our local timezone. */
    if(! MLEvaluateString(stdlink, "$TimeZone = 9;"))
        { /* unable to send $TimeZone = 9; to stdlink */ }

    if(! MLEvaluate(stdlink, "{Date[],$TimeZone}"))
        { /* unable to send the expression to stdlink */ }

    /* get the Kernel's response */
    switch(MLGetType(stdlink))
    {
        /* ... */
    }

    /* ... */    
}