/*
 * $Id: p_header,v 1.4 2000/11/27 01:57:01 keiko Exp $
 */

#include <stdio.h>
#include "ruby.h"
#include "libtinyf2c.h"
#include "narray.h"

#define DFLT_SIZE 32

extern char    *dcl_obj2ccharary(VALUE, int, int);
extern integer *dcl_obj2cintegerary(VALUE);
extern real    *dcl_obj2crealary(VALUE);
extern complex *dcl_obj2ccomplexary(VALUE);
extern logical *dcl_obj2clogicalary(VALUE);

extern VALUE dcl_ccharary2obj(char *, int, int);
extern VALUE dcl_cintegerary2obj(integer *, int, int, int *);
extern VALUE dcl_crealary2obj(real *, int, int, int *);
extern VALUE dcl_ccomplexary2obj(complex *, int, char *);
extern VALUE dcl_clogicalary2obj(logical *, int, int, int *);

extern void dcl_freeccharary(char *);
extern void dcl_freecintegerary(integer *);
extern void dcl_freecrealary(real *);
extern void dcl_freeccomplexary(complex *);
extern void dcl_freeclogicalary(logical *);

/* for functions which return doublereal */
/* fnclib */
extern doublereal rd2r_(real *);
extern doublereal rr2d_(real *);
extern doublereal rexp_(real *, integer *, integer *);
extern doublereal rfpi_(void);
extern doublereal rmod_(real *, real *);
/* gnmlib */
extern doublereal rgnlt_(real *);
extern doublereal rgnle_(real *);
extern doublereal rgngt_(real *);
extern doublereal rgnge_(real *);
/* rfalib */
extern doublereal rmax_(real *, integer *, integer *);
extern doublereal rmin_(real *, integer *, integer *);
extern doublereal rsum_(real *, integer *, integer *);
extern doublereal rave_(real *, integer *, integer *);
extern doublereal rvar_(real *, integer *, integer *);
extern doublereal rstd_(real *, integer *, integer *);
extern doublereal rrms_(real *, integer *, integer *);
extern doublereal ramp_(real *, integer *, integer *);
/* rfblib */
extern doublereal rprd_(real *, real *, integer *, integer *, integer *);
extern doublereal rcov_(real *, real *, integer *, integer *, integer *);
extern doublereal rcor_(real *, real *, integer *, integer *, integer *);


extern VALUE mDCL;

static VALUE
dcl_osqarn(obj)
    VALUE obj;
{
    integer o_n;
    VALUE n;

    osqarn_(&o_n);

    n = INT2NUM(o_n);


    return n;

}

static VALUE
dcl_osgarg(obj, n)
    VALUE obj, n;
{
    integer i_n;
    char *o_chr;
    VALUE chr;

    if ((TYPE(n) != T_BIGNUM) || (TYPE(n) != T_FIXNUM)) {
      n = rb_funcall(n, rb_intern("to_i"), 0);
    }

    i_n = NUM2INT(n);

    o_chr= ALLOCA_N(char, (DFLT_SIZE+1));
    memset(o_chr, '\0', DFLT_SIZE+1);

    osgarg_(&i_n, o_chr, (ftnlen)DFLT_SIZE);

    chr = rb_str_new2(o_chr);


    return chr;

}
void
init_math1_oslib(mDCL)
VALUE mDCL;
{
    rb_define_module_function(mDCL, "osqarn", dcl_osqarn, 0);
    rb_define_module_function(mDCL, "osgarg", dcl_osgarg, 1);
}