int MLGetInteger32(MLINK link, int *i)
gets a 32-bit integer from the MathLink connection specified by link and stores it in i.


  • If the data on the link corresponds to a real number, MLGetInteger32() will round it to an integer.
  • If the data on the link corresponds to an integer too large to store in a C int on your computer system, then MLGetInteger32() will fail, and return 0.
  • You can get arbitrary-precision integers by first using IntegerDigits to generate lists of digits, then calling MLGetInteger32List().
  • MLGetInteger32() returns a nonzero value if the function succeeds.
  • Use MLError() to retrieve the error code if MLGetInteger32() fails.
  • MLGetInteger32() is declared in the MathLink header file mathlink.h.

ExamplesExamplesopen allclose all

Basic Examples (1)Basic Examples (1)

#include "mathlink.h"

/* read a 32-bit integer from a link */

void f(MLINK lp)
    int data;

    if(! MLGetInteger32(lp, &data))
        { /* unable to read an integer from lp */ }

    /* use the integer */
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