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https://github.com/NGSolve/netgen.git
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135 lines
5.0 KiB
C++
135 lines
5.0 KiB
C++
#ifndef NETGEN_CORE_EXCEPTION_HPP
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#define NETGEN_CORE_EXCEPTION_HPP
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#include <sstream> // for stringstream
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#include <stdexcept> // for exception
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#include <string> // for string
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#include "ngcore_api.hpp" // for NGCORE_API
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namespace ngcore
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{
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NGCORE_API std::string GetBackTrace();
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// Exception for code that shouldn't be executed
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class NGCORE_API UnreachableCodeException : public std::exception
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{
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const char* what() const noexcept override
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{
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return "Shouldn't get here, something went wrong!";
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}
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};
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// Default exception class
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class NGCORE_API Exception : public std::exception
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{
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/// a verbal description of the exception
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std::string m_what;
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public:
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Exception() = default;
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Exception(const Exception&) = default;
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Exception(Exception&&) = default;
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Exception(const std::string& s); // : m_what(s) {}
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Exception(const char* s); // : m_what(s) {}
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Exception(std::string_view s1, std::string_view s2);
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Exception(std::string_view s1, std::string_view s2, std::string_view s3);
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~Exception() override = default;
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[[noreturn]] static void Throw (std::string_view s1);
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[[noreturn]] static void Throw (std::string_view s1, std::string_view s2);
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[[noreturn]] static void Throw (std::string_view s1, std::string_view s2, std::string_view s3);
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Exception& operator =(const Exception&) = default;
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Exception& operator =(Exception&&) noexcept = default;
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/// append string to description
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Exception & Append (const std::string & s) { m_what += s; return *this; }
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/// append string to description
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Exception & Append (const char * s) { m_what += s; return *this; }
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/// verbal description of exception
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const std::string & What() const { return m_what; }
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/// implement virtual function of std::exception
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const char* what() const noexcept override { return m_what.c_str(); }
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};
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[[noreturn]] NGCORE_API void ThrowException(const std::string & s);
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[[noreturn]] NGCORE_API void ThrowException(const char * s);
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// Out of Range exception
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class NGCORE_API RangeException : public Exception
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{
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public:
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/// where it occurs, index, minimal and maximal indices
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RangeException (// const std::string & where,
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const char * where,
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int ind, int imin, int imax);
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/*
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: Exception("")
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{
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std::stringstream str;
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str << where << ": index " << ind << " out of range [" << imin << "," << imax << ")\n";
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Append (str.str());
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Append (GetBackTrace());
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}
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*/
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template<typename T>
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RangeException(const std::string& where, const T& value)
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{
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std::stringstream str;
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str << where << " called with wrong value " << value << "\n";
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Append(str.str());
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}
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};
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[[noreturn]] NGCORE_API void ThrowRangeException(const char * s, int ind, int imin, int imax);
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[[noreturn]] NGCORE_API void ThrowNotTheSameException(const char * s, long int a, long int b);
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// Exception used if no simd implementation is available to fall back to standard evaluation
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class NGCORE_API ExceptionNOSIMD : public Exception
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{ public: using Exception::Exception; };
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} // namespace ngcore
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#define NETGEN_CORE_NGEXEPTION_STR_HELPER(x) #x
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#define NETGEN_CORE_NGEXEPTION_STR(x) NETGEN_CORE_NGEXEPTION_STR_HELPER(x)
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// Convenience macro to append file name and line of exception origin to the string
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#define NG_EXCEPTION(s) ngcore::Exception(__FILE__ ":" NETGEN_CORE_NGEXEPTION_STR(__LINE__) "\t"+std::string(s))
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template <typename T>
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struct IsSafe {
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constexpr operator bool() const { return false; } };
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#if defined(NETGEN_ENABLE_CHECK_RANGE) && !defined(__CUDA_ARCH__)
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#define NETGEN_CHECK_RANGE(value, min, max_plus_one) \
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{ if constexpr (!IsSafe<decltype(value)>()) { \
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if ((value)<(min) || (value)>=(max_plus_one)) \
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ThrowRangeException(__FILE__ ":" NETGEN_CORE_NGEXEPTION_STR(__LINE__) "\t", int(value), int(min), int(max_plus_one)); } }
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// #define NETGEN_CHECK_SHAPE(a,b) \
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// { if(a.Shape() != b.Shape()) \
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// ngcore::ThrowException(__FILE__ ":" NETGEN_CORE_NGEXEPTION_STR(__LINE__) "\t: shapes don't match"); }
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#define NETGEN_CHECK_SAME(a,b) \
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{ if(a != b) { \
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if constexpr(std::is_same<decltype(a),size_t>() && std::is_same<decltype(b),size_t>()) \
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ThrowNotTheSameException(__FILE__ ":" NETGEN_CORE_NGEXEPTION_STR(__LINE__) "\t: not the same, a=", long(a), long(b)); \
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else \
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throw ngcore::Exception(__FILE__ ":" NETGEN_CORE_NGEXEPTION_STR(__LINE__) "\t: not the same, a="+ToString(a) + ", b="+ToString(b) + GetBackTrace()); \
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} }
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#define NETGEN_NOEXCEPT
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#else // defined(NETGEN_ENABLE_CHECK_RANGE) && !defined(__CUDA_ARCH__)
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#define NETGEN_CHECK_RANGE(value, min, max)
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#define NETGEN_CHECK_SAME(a,b)
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// #define NETGEN_CHECK_SHAPE(a,b)
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#define NETGEN_NOEXCEPT noexcept
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#endif // defined(NETGEN_ENABLE_CHECK_RANGE) && !defined(__CUDA_ARCH__)
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#endif // NETGEN_CORE_EXCEPTION_HPP
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