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random/geometric_distribution.hpp 追加

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distribution のストリーム入力のバグ修正
This commit is contained in:
bolero-MURAKAMI 2011-10-14 21:23:13 +09:00
parent 16dfd793ab
commit 7ae0072f2e
7 changed files with 259 additions and 14 deletions
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20
sprout/random/binomial_distribution.hpp
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@ -1,6 +1,7 @@
#ifndef SPROUT_RANDOM_BINOMIAL_DISTRIBUTION_HPP
#define SPROUT_RANDOM_BINOMIAL_DISTRIBUTION_HPP
#include <cmath>
#include <iosfwd>
#include <istream>
#include <sprout/config.hpp>
@ -52,8 +53,11 @@ namespace sprout {
RealType u_rv_r;
};
private:
static SPROUT_CONSTEXPR bool arg_check_nothrow(IntType t_arg, RealType p_arg) {
return t_arg >= IntType(0) && RealType(0) <= p_arg && p_arg <= RealType(1);
}
static SPROUT_CONSTEXPR IntType arg_check(IntType t_arg, RealType p_arg) {
return t_arg >= IntType(0) && RealType(0) <= p_arg && p_arg <= RealType(1)
return arg_check_nothrow(t_arg, p_arg)
? t_arg
: throw "assert(t_arg >= IntType(0) && RealType(0) <= p_arg && p_arg <= RealType(1))"
;
@ -89,7 +93,17 @@ namespace sprout {
param_type const& rhs
)
{
return lhs >> rhs.t_ >> std::ws >> rhs.p_;
IntType t;
RealType p;
if (lhs >> t >> std::ws >> p) {
if (arg_check_nothrow(t, p)) {
rhs.t_ = t;
rhs.p_ = p;
} else {
lhs.setstate(std::ios_base::failbit);
}
}
return lhs;
}
template<typename Elem, typename Traits>
friend std::basic_ostream<Elem, Traits>& operator<<(
@ -397,7 +411,7 @@ namespace sprout {
)
{
param_type parm;
return lhs >> parm;
lhs >> parm;
param(parm);
return lhs;
}