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/*
sf_dilog.c
Ruby/GSL: Ruby extension library for GSL (GNU Scientific Library)
(C) Copyright 2001-2006 by Yoshiki Tsunesada
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; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "include/rb_gsl_sf.h"
static VALUE rb_gsl_sf_dilog(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_dilog, x);
}
static VALUE rb_gsl_sf_dilog_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_dilog_e, x);
}
static VALUE rb_gsl_sf_complex_dilog_e(VALUE obj, VALUE r, VALUE theta)
{
gsl_sf_result *re, *im;
VALUE vre, vim;
// local variable "status" declared and set, but never used
//int status;
Need_Float(r); Need_Float(theta);
vre = Data_Make_Struct(cgsl_sf_result, gsl_sf_result, 0, free, re);
vim = Data_Make_Struct(cgsl_sf_result, gsl_sf_result, 0, free, im);
/*status =*/ gsl_sf_complex_dilog_e(NUM2DBL(r), NUM2DBL(theta), re, im);
return rb_ary_new3(2, vre, vim);
}
void Init_gsl_sf_dilog(VALUE module)
{
rb_define_module_function(module, "dilog", rb_gsl_sf_dilog, 1);
rb_define_module_function(module, "dilog_e", rb_gsl_sf_dilog_e, 1);
rb_define_module_function(module, "complex_dilog_e", rb_gsl_sf_complex_dilog_e, 2);
}
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