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//===---------------------- 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/Support/system_error.h"
#include "llvm/Support/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;
}
const error_category&
posix_category() {
#ifdef LLVM_ON_WIN32
return generic_category();
#else
return system_category();
#endif
}
// 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 "Windows/system_error.inc"
#endif
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