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pocketpy/3rd/numpy/include/xtensor/xexception.hpp
Anurag Bhat 86b4fc623c
Merge numpy to pocketpy (#303) 
* Merge numpy to pocketpy

* Add CI

* Fix CI
2024-09-02 16:22:41 +08:00

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/***************************************************************************
* Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht *
* Copyright (c) QuantStack *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
****************************************************************************/
#ifndef XTENSOR_EXCEPTION_HPP
#define XTENSOR_EXCEPTION_HPP
#include <iostream>
#include <iterator>
#include <sstream>
#include <stdexcept>
#include <string>
#include <type_traits>
#include <xtl/xcompare.hpp>
#include <xtl/xsequence.hpp>
#include <xtl/xspan_impl.hpp>
#include "xtensor_config.hpp"
#ifdef __GNUC__
#define XTENSOR_UNUSED_VARIABLE __attribute__((unused))
#else
#define XTENSOR_UNUSED_VARIABLE
#endif
namespace xt
{
struct missing_type
{
};
namespace
{
missing_type XTENSOR_UNUSED_VARIABLE missing;
}
namespace detail
{
template <class... Args>
struct last_type_is_missing_impl
: std::is_same<missing_type, xtl::mpl::back_t<xtl::mpl::vector<Args...>>>
{
};
template <>
struct last_type_is_missing_impl<> : std::false_type
{
};
template <class... Args>
constexpr bool last_type_is_missing = last_type_is_missing_impl<Args...>::value;
}
/*******************
* broadcast_error *
*******************/
class broadcast_error : public std::runtime_error
{
public:
explicit broadcast_error(const char* msg)
: std::runtime_error(msg)
{
}
};
template <class S1, class S2>
[[noreturn]] void throw_broadcast_error(const S1& lhs, const S2& rhs);
/*********************
* concatenate_error *
*********************/
class concatenate_error : public std::runtime_error
{
public:
explicit concatenate_error(const char* msg)
: std::runtime_error(msg)
{
}
};
template <class S1, class S2>
[[noreturn]] void throw_concatenate_error(const S1& lhs, const S2& rhs);
/**********************************
* broadcast_error implementation *
**********************************/
namespace detail
{
template <class S1, class S2>
inline std::string shape_error_message(const S1& lhs, const S2& rhs)
{
std::ostringstream buf("Incompatible dimension of arrays:", std::ios_base::ate);
buf << "\n LHS shape = (";
using size_type1 = typename S1::value_type;
std::ostream_iterator<size_type1> iter1(buf, ", ");
std::copy(lhs.cbegin(), lhs.cend(), iter1);
buf << ")\n RHS shape = (";
using size_type2 = typename S2::value_type;
std::ostream_iterator<size_type2> iter2(buf, ", ");
std::copy(rhs.cbegin(), rhs.cend(), iter2);
buf << ")";
return buf.str();
}
}
#ifdef NDEBUG
// Do not inline this function
template <class S1, class S2>
[[noreturn]] void throw_broadcast_error(const S1&, const S2&)
{
XTENSOR_THROW(broadcast_error, "Incompatible dimension of arrays, compile in DEBUG for more info");
}
#else
template <class S1, class S2>
[[noreturn]] void throw_broadcast_error(const S1& lhs, const S2& rhs)
{
std::string msg = detail::shape_error_message(lhs, rhs);
XTENSOR_THROW(broadcast_error, msg.c_str());
}
#endif
/************************************
* concatenate_error implementation *
************************************/
#ifdef NDEBUG
// Do not inline this function
template <class S1, class S2>
[[noreturn]] void throw_concatenate_error(const S1&, const S2&)
{
XTENSOR_THROW(concatenate_error, "Incompatible dimension of arrays, compile in DEBUG for more info");
}
#else
template <class S1, class S2>
[[noreturn]] void throw_concatenate_error(const S1& lhs, const S2& rhs)
{
std::string msg = detail::shape_error_message(lhs, rhs);
XTENSOR_THROW(concatenate_error, msg.c_str());
}
#endif
/*******************
* transpose_error *
*******************/
class transpose_error : public std::runtime_error
{
public:
explicit transpose_error(const char* msg)
: std::runtime_error(msg)
{
}
};
/***************
* check_index *
***************/
template <class S, class... Args>
void check_index(const S& shape, Args... args);
template <class S, class It>
void check_element_index(const S& shape, It first, It last);
namespace detail
{
template <class S, std::size_t dim>
inline void check_index_impl(const S&)
{
}
template <class S, std::size_t dim>
inline void check_index_impl(const S&, missing_type)
{
}
template <class S, std::size_t dim, class T, class... Args>
inline void check_index_impl(const S& shape, T arg, Args... args)
{
if (std::size_t(arg) >= std::size_t(shape[dim]) && shape[dim] != 1)
{
XTENSOR_THROW(
std::out_of_range,
"index " + std::to_string(arg) + " is out of bounds for axis " + std::to_string(dim)
+ " with size " + std::to_string(shape[dim])
);
}
check_index_impl<S, dim + 1>(shape, args...);
}
}
template <class S>
inline void check_index(const S&)
{
}
template <class S>
inline void check_index(const S&, missing_type)
{
}
template <class S, class Arg, class... Args>
inline void check_index(const S& shape, Arg arg, Args... args)
{
constexpr std::size_t nargs = sizeof...(Args) + 1;
if (nargs == shape.size())
{
detail::check_index_impl<S, 0>(shape, arg, args...);
}
else if (nargs > shape.size())
{
// Too many arguments: drop the first
check_index(shape, args...);
}
else if (detail::last_type_is_missing<Args...>)
{
// Too few arguments & last argument xt::missing: postfix index with zeros
detail::check_index_impl<S, 0>(shape, arg, args...);
}
else
{
// Too few arguments: ignore the beginning of the shape
auto it = shape.end() - nargs;
detail::check_index_impl<decltype(it), 0>(it, arg, args...);
}
}
template <class S, class It>
inline void check_element_index(const S& shape, It first, It last)
{
using value_type = typename std::iterator_traits<It>::value_type;
using size_type = typename S::size_type;
auto dst = static_cast<size_type>(last - first);
It efirst = last - static_cast<std::ptrdiff_t>((std::min)(shape.size(), dst));
std::size_t axis = 0;
while (efirst != last)
{
if (*efirst >= value_type(shape[axis]) && shape[axis] != 1)
{
XTENSOR_THROW(
std::out_of_range,
"index " + std::to_string(*efirst) + " is out of bounds for axis " + std::to_string(axis)
+ " with size " + std::to_string(shape[axis])
);
}
++efirst, ++axis;
}
}
/*******************
* check_dimension *
*******************/
template <class S, class... Args>
inline void check_dimension(const S& shape, Args...)
{
if (sizeof...(Args) > shape.size())
{
XTENSOR_THROW(
std::out_of_range,
"Number of arguments (" + std::to_string(sizeof...(Args))
+ ") is greater than the number of dimensions (" + std::to_string(shape.size()) + ")"
);
}
}
/*******************************
* check_axis implementation *
*******************************/
template <class A, class D>
inline void check_axis_in_dim(A axis, D dim, const char* subject = "Axis")
{
const auto sdim = static_cast<std::make_signed_t<D>>(dim);
if (xtl::cmp_greater_equal(axis, dim) || xtl::cmp_less(axis, -sdim))
{
XTENSOR_THROW(
std::out_of_range,
std::string(subject) + " (" + std::to_string(axis)
+ ") is not within the number of dimensions (" + std::to_string(dim) + ')'
);
}
}
/****************
* check_access *
****************/
template <class S, class... Args>
inline void check_access(const S& shape, Args... args)
{
check_dimension(shape, args...);
check_index(shape, args...);
}
#if (defined(XTENSOR_ENABLE_ASSERT) && !defined(XTENSOR_DISABLE_EXCEPTIONS))
#define XTENSOR_TRY(expr) XTENSOR_TRY_IMPL(expr, __FILE__, __LINE__)
#define XTENSOR_TRY_IMPL(expr, file, line) \
try \
{ \
expr; \
} \
catch (std::exception & e) \
{ \
XTENSOR_THROW( \
std::runtime_error, \
std::string(file) + ':' + std::to_string(line) + ": check failed\n\t" + std::string(e.what()) \
); \
}
#else
#define XTENSOR_TRY(expr)
#endif
#ifdef XTENSOR_ENABLE_ASSERT
#define XTENSOR_ASSERT(expr) XTENSOR_ASSERT_IMPL(expr, __FILE__, __LINE__)
#define XTENSOR_ASSERT_IMPL(expr, file, line) \
if (!(expr)) \
{ \
XTENSOR_THROW( \
std::runtime_error, \
std::string(file) + ':' + std::to_string(line) + ": assertion failed (" #expr ") \n\t" \
); \
}
#else
#define XTENSOR_ASSERT(expr)
#endif
#ifdef XTENSOR_ENABLE_CHECK_DIMENSION
#define XTENSOR_CHECK_DIMENSION(S, ARGS) XTENSOR_TRY(check_dimension(S, ARGS))
#else
#define XTENSOR_CHECK_DIMENSION(S, ARGS)
#endif
#ifdef XTENSOR_ENABLE_ASSERT
#define XTENSOR_ASSERT_MSG(expr, msg) \
if (!(expr)) \
{ \
XTENSOR_THROW( \
std::runtime_error, \
std::string("Assertion error!\n") + msg + "\n " + __FILE__ + '(' + std::to_string(__LINE__) + ")\n" \
); \
}
#else
#define XTENSOR_ASSERT_MSG(expr, msg)
#endif
#define XTENSOR_PRECONDITION(expr, msg) \
if (!(expr)) \
{ \
XTENSOR_THROW( \
std::runtime_error, \
std::string("Precondition violation!\n") + msg + "\n " + __FILE__ + '(' \
+ std::to_string(__LINE__) + ")\n" \
); \
}
}
#endif // XEXCEPTION_HPP
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