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/*
vector_int.c
Ruby/GSL: Ruby extension library for GSL (GNU Scientific Library)
(C) Copyright 2004 by Yoshiki Tsunesada
Modified by Seiya Nishizawa 14/Apr/2004
Ruby/GSL is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY.
*/
#include "include/rb_gsl_array.h"
#include "include/rb_gsl_complex.h"
#include "include/rb_gsl_with_narray.h"
VALUE rb_gsl_vector_int_inner_product(int argc, VALUE *argv, VALUE obj);
VALUE rb_gsl_vector_int_do_something(VALUE obj, void (*func)(gsl_vector_int*));
static VALUE rb_gsl_vector_int_to_i(VALUE obj)
{
return obj;
}
VALUE rb_gsl_vector_int_to_f(VALUE obj)
{
gsl_vector_int *v;
gsl_vector *vnew;
size_t i;
Data_Get_Struct(obj, gsl_vector_int, v);
vnew = gsl_vector_alloc(v->size);
for (i = 0; i < v->size; i++)
gsl_vector_set(vnew, i, (double) gsl_vector_int_get(v, i));
if (VECTOR_INT_COL_P(obj))
return Data_Wrap_Struct(cgsl_vector_col, 0, gsl_vector_free, vnew);
else
return Data_Wrap_Struct(cgsl_vector, 0, gsl_vector_free, vnew);
}
static VALUE rb_gsl_vector_int_to_complex(VALUE obj)
{
gsl_vector_int *v;
gsl_vector_complex *vnew;
gsl_complex z;
size_t i;
Data_Get_Struct(obj, gsl_vector_int, v);
vnew = gsl_vector_complex_alloc(v->size);
for (i = 0; i < v->size; i++) {
GSL_SET_REAL(&z, (double) gsl_vector_int_get(v, i));
GSL_SET_IMAG(&z, 0.0);
gsl_vector_complex_set(vnew, i, z);
}
if (VECTOR_INT_COL_P(obj))
return Data_Wrap_Struct(cgsl_vector_complex_col, 0, gsl_vector_complex_free, vnew);
else
return Data_Wrap_Struct(cgsl_vector_complex, 0, gsl_vector_complex_free, vnew);
}
static VALUE rb_gsl_vector_int_coerce(VALUE obj, VALUE other)
{
gsl_vector_int *v = NULL, *vnew = NULL;
VALUE vv;
Data_Get_Struct(obj, gsl_vector_int, v);
switch (TYPE(other)) {
case T_FIXNUM:
vnew = gsl_vector_int_alloc(v->size);
if (vnew == NULL) rb_raise(rb_eNoMemError, "gsl_vector_int_alloc failed");
gsl_vector_int_set_all(vnew, FIX2INT(other));
vv = Data_Wrap_Struct(VECTOR_INT_ROW_COL(obj), 0, gsl_vector_int_free, vnew);
return rb_ary_new3(2, vv, obj);
break;
default:
return rb_ary_new3(2, other, rb_gsl_vector_int_to_f(obj));
}
// return rb_ary_new3(2, other, rb_gsl_vector_int_to_f(obj));
}
VALUE rb_gsl_vector_add(VALUE obj, VALUE b);
VALUE rb_gsl_vector_sub(VALUE obj, VALUE b);
VALUE rb_gsl_vector_mul(VALUE obj, VALUE b);
VALUE rb_gsl_vector_div(VALUE obj, VALUE b);
static VALUE rb_gsl_vector_int_add(VALUE obj, VALUE b)
{
gsl_vector_int *v, *vnew, *vb;
switch (TYPE(b)) {
case T_FIXNUM:
return rb_gsl_vector_int_add_constant(obj, b);
break;
case T_FLOAT:
return rb_gsl_vector_add_constant(rb_gsl_vector_int_to_f(obj), b);
break;
default:
if (rb_obj_is_kind_of(b, cgsl_vector_int)) {
Data_Get_Struct(obj, gsl_vector_int, v);
Data_Get_Struct(b, gsl_vector_int, vb);
vnew = gsl_vector_int_alloc(v->size);
gsl_vector_int_memcpy(vnew, v);
gsl_vector_int_add(vnew, vb);
return Data_Wrap_Struct(VECTOR_INT_ROW_COL(obj), 0, gsl_vector_int_free, vnew);
} else {
return rb_gsl_vector_add(rb_gsl_vector_int_to_f(obj), b);
}
break;
}
}
static VALUE rb_gsl_vector_int_sub(VALUE obj, VALUE b)
{
gsl_vector_int *v, *vnew, *vb;
switch (TYPE(b)) {
case T_FIXNUM:
return rb_gsl_vector_int_add_constant(obj, INT2FIX(-FIX2INT(b)));
break;
case T_FLOAT:
return rb_gsl_vector_add_constant(rb_gsl_vector_int_to_f(obj), rb_float_new(-NUM2DBL(b)));
break;
default:
if (rb_obj_is_kind_of(b, cgsl_vector_int)) {
Data_Get_Struct(obj, gsl_vector_int, v);
Data_Get_Struct(b, gsl_vector_int, vb);
vnew = gsl_vector_int_alloc(v->size);
gsl_vector_int_memcpy(vnew, v);
gsl_vector_int_sub(vnew, vb);
return Data_Wrap_Struct(VECTOR_INT_ROW_COL(obj), 0, gsl_vector_int_free, vnew);
} else {
return rb_gsl_vector_sub(rb_gsl_vector_int_to_f(obj), b);
}
break;
}
}
gsl_vector_int* mygsl_vector_int_mul_matrix(gsl_vector_int *v, gsl_matrix_int *m);
static VALUE rb_gsl_vector_int_mul(VALUE obj, VALUE b)
{
VALUE argv[2];
gsl_vector_int *v, *vnew, *v2;
gsl_matrix_int *m;
int val;
size_t i, j;
switch (TYPE(b)) {
case T_FIXNUM:
case T_FLOAT:
return rb_gsl_vector_int_scale(obj, b);
break;
default:
if (VECTOR_INT_ROW_P(obj) && VECTOR_INT_COL_P(b)) {
argv[0] = obj;
argv[1] = b;
return rb_gsl_vector_int_inner_product(2, argv, CLASS_OF(obj));
} else if (VECTOR_INT_ROW_P(obj) && MATRIX_INT_P(b)) {
Data_Get_Struct(obj, gsl_vector_int, v);
Data_Get_Struct(b, gsl_matrix_int, m);
vnew = mygsl_vector_int_mul_matrix(v, m);
return Data_Wrap_Struct(cgsl_vector_int, 0, gsl_vector_int_free, vnew);
} else if (VECTOR_INT_COL_P(obj) && VECTOR_INT_ROW_P(b)) {
Data_Get_Struct(obj, gsl_vector_int, v);
Data_Get_Struct(b, gsl_vector_int, v2);
if (v->size != v2->size) rb_raise(rb_eIndexError, "Vector sizes does not match.");
m = gsl_matrix_int_alloc(v->size, v2->size);
for (i = 0; i < v->size; i++) {
for (j = 0; j < v2->size; j++) {
val = gsl_vector_int_get(v, i)*gsl_vector_int_get(v2, j);
gsl_matrix_int_set(m, i, j, val);
}
}
return Data_Wrap_Struct(cgsl_matrix_int, 0, gsl_matrix_int_free, m);
} else {
return rb_gsl_vector_mul(rb_gsl_vector_int_to_f(obj), b);
}
break;
}
}
static VALUE rb_gsl_vector_int_div(VALUE obj, VALUE b)
{
return rb_gsl_vector_div(rb_gsl_vector_int_to_f(obj), b);
}
void Init_gsl_vector_int(VALUE module)
{
rb_define_method(cgsl_vector_int, "to_f", rb_gsl_vector_int_to_f, 0);
rb_define_method(cgsl_vector_int, "to_i", rb_gsl_vector_int_to_i, 0);
rb_define_method(cgsl_vector_int, "to_complex", rb_gsl_vector_int_to_complex, 0);
/*****/
rb_define_method(cgsl_vector_int, "coerce", rb_gsl_vector_int_coerce, 1);
rb_define_method(cgsl_vector_int, "add", rb_gsl_vector_int_add, 1);
rb_define_method(cgsl_vector_int, "sub", rb_gsl_vector_int_sub, 1);
rb_define_method(cgsl_vector_int, "mul", rb_gsl_vector_int_mul, 1);
rb_define_method(cgsl_vector_int, "div", rb_gsl_vector_int_div, 1);
rb_define_alias(cgsl_vector_int, "+", "add");
rb_define_alias(cgsl_vector_int, "-", "sub");
rb_define_alias(cgsl_vector_int, "*", "mul");
rb_define_alias(cgsl_vector_int, "/", "div");
Init_gsl_vector_int_init(module);
}
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