OBSOLETE WSTP C FUNCTION

MLDeallocator
This feature is not supported on the Wolfram Cloud.

has been replaced by WSDeallocator.


is a MathLink type that describes a function pointer to a function taking a void * as an argument and having a return type of void that implements a memory deallocator.

DetailsDetails

  • The memory deallocator function must be thread-safe.
  • MLDeallocator() is declared in the MathLink header file mathlink.h.

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

#include <stdlib.h>
#include "mathlink.h"

/* AppAllocator implements a custom memory allocator */
void * AppAllocator(unsigned long size)
{
    return malloc(size);
}


/* AppDeallocator implements a custom memory deallocator */
void AppDeallocator(void *m)
{
    free(m);
}


int main(int argc, char **argv)
{
    MLENV env;
    MLINK link;
    MLEnvironmentParameter p;
    int error;

    p = MLNewParameters(MLREVISION, MLAPIREVISION);
    if(p == (MLEnvironmentParameter)0)
    { /* Unable to initialize a parameters object */ }

    MLSetAllocParameter(p, AppAllocator, AppDeallocator);

    env = MLInitialize(p);
    if(env == (MLENV)0)
    { /* unable to initialize the MathLink environment */ }

    MLReleaseParameters(p);

    link = MLOpenArgcArgv(env, argc, argv, &error);
    if(link == (MLINK)0)
    { /* unable to create the link */ }

    /* ... */

    MLClose(link);
    MLDeinitialize(env);

    return 0;
}