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bees: remove local cruft, throw at github

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This commit is contained in:
Zygo Blaxell
2016-11-15 23:32:44 -05:00
commit cca0ee26a8
66 changed files with 12785 additions and 0 deletions
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51
include/crucible/limits.h Normal file
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@@ -0,0 +1,51 @@
#ifndef CRUCIBLE_LIMITS_H
#define CRUCIBLE_LIMITS_H
#include "crucible/error.h"
#include <limits>
#include <typeinfo>
namespace crucible {
using namespace std;
template <class To, class From>
To
ranged_cast(From f)
{
if (typeid(From) == typeid(To)) {
return f;
}
To t;
static string f_info = typeid(f).name();
static string t_info = typeid(t).name();
if (numeric_limits<From>::max() > numeric_limits<To>::max() && numeric_limits<From>::max() < numeric_limits<To>::max()) {
THROW_ERROR(out_of_range,
"ranged_cast: can't compare limits of types " << f_info << " and " << t_info << ", template specialization required");
}
if (numeric_limits<From>::max() > numeric_limits<To>::max() && f > static_cast<From>(numeric_limits<To>::max())) {
THROW_ERROR(out_of_range,
"ranged_cast: " << f_info << "(" << f << ") out of range of target type " << t_info);
}
if (!numeric_limits<To>::is_signed && numeric_limits<From>::is_signed && f < 0) {
THROW_ERROR(out_of_range,
"ranged_cast: " << f_info << "(" << f << ") out of range of unsigned target type " << t_info);
}
t = static_cast<To>(f);
From f2 = static_cast<From>(t);
if (f2 != f) {
THROW_ERROR(out_of_range,
"ranged_cast: " << f_info << "(" << f << ") -> " << t_info << " failed: result value " << f2);
}
return t;
}
};
#endif // CRUCIBLE_LIMITS_H