diff options
Diffstat (limited to 'lib/System/system_error.cpp')
-rw-r--r-- | lib/System/system_error.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/lib/System/system_error.cpp b/lib/System/system_error.cpp new file mode 100644 index 0000000..e7de852 --- /dev/null +++ b/lib/System/system_error.cpp @@ -0,0 +1,121 @@ +//===---------------------- system_error.cpp ------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This was lifted from libc++ and modified for C++03. +// +//===----------------------------------------------------------------------===// + +#include "llvm/System/system_error.h" +#include "llvm/System/Errno.h" +#include <string> +#include <cstring> + +namespace llvm { + +// class error_category + +error_category::error_category() { +} + +error_category::~error_category() { +} + +error_condition +error_category::default_error_condition(int ev) const { + return error_condition(ev, *this); +} + +bool +error_category::equivalent(int code, const error_condition& condition) const { + return default_error_condition(code) == condition; +} + +bool +error_category::equivalent(const error_code& code, int condition) const { + return *this == code.category() && code.value() == condition; +} + +std::string +_do_message::message(int ev) const { + return std::string(sys::StrError(ev)); +} + +class _generic_error_category : public _do_message { +public: + virtual const char* name() const; + virtual std::string message(int ev) const; +}; + +const char* +_generic_error_category::name() const { + return "generic"; +} + +std::string +_generic_error_category::message(int ev) const { +#ifdef ELAST + if (ev > ELAST) + return std::string("unspecified generic_category error"); +#endif // ELAST + return _do_message::message(ev); +} + +const error_category& +generic_category() { + static _generic_error_category s; + return s; +} + +class _system_error_category : public _do_message { +public: + virtual const char* name() const; + virtual std::string message(int ev) const; + virtual error_condition default_error_condition(int ev) const; +}; + +const char* +_system_error_category::name() const { + return "system"; +} + +// std::string _system_error_category::message(int ev) const { +// Is in Platform/system_error.inc + +// error_condition _system_error_category::default_error_condition(int ev) const +// Is in Platform/system_error.inc + +const error_category& +system_category() { + static _system_error_category s; + return s; +} + +// error_condition + +std::string +error_condition::message() const { + return _cat_->message(_val_); +} + +// error_code + +std::string +error_code::message() const { + return _cat_->message(_val_); +} + +} // end namespace llvm + +// Include the truly platform-specific parts of this class. +#if defined(LLVM_ON_UNIX) +#include "Unix/system_error.inc" +#endif +#if defined(LLVM_ON_WIN32) +#include "Win32/system_error.inc" +#endif |