The R Project SVN R

#include "embeddedRCall.h"

int callLength(SEXP obj);
int R_embeddedShutdown(Rboolean ask);

main(int argc, char *argv[])
{
  SEXP objs[100];
  int i;
  Rf_initEmbeddedR(sizeof(argv)/sizeof(argv[0]), argv);

  for(i = 0; i < 100; i++) {
    objs[i] = allocVector(VECSXP, 1000);
    R_PreserveObject(objs[i]);
    callLength(objs[i]);
  }

  R_embeddedShutdown(FALSE);
}

int
callLength(SEXP obj)
{
    SEXP e, val;
    int errorOccurred;
    int len = -1;

    PROTECT(e = allocVector(LANGSXP,2));
    SETCAR(e, Rf_install("length"));
    SETCAR(CDR(e), obj);

    PROTECT(val = Test_tryEval(e, &errorOccurred));
    len = INTEGER(val)[0];
    UNPROTECT(2);
   
    return(len);
}


int 
R_embeddedShutdown(Rboolean ask)
{

    R_dot_Last();
    CleanEd();
    KillAllDevices();
    num_old_gens_to_collect = NUM_OLD_GENERATIONS;
    R_gc();
    return(1);
}