result.h File Reference

#include <cstdint>
#include <memory>
#include <string>
#include <system_error>
#include <utility>

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Classes
struct	xgboost::collective::detail::ResultImpl
struct	xgboost::collective::Result
	An error type that's easier to handle than throwing dmlc exception. We can record and propagate the system error code. More...

Namespaces
	xgboost
	Core data structure for multi-target trees.
	xgboost::collective
	xgboost::collective::detail

Macros
#define	__builtin_FILE()   nullptr
#define	__builtin_LINE()   (-1)

Functions
std::string	xgboost::collective::detail::MakeMsg (std::string &&msg, char const *, std::int32_t)
Result	xgboost::collective::operator+ (Result &&lhs, Result &&rhs)
auto	xgboost::collective::Success () noexcept(true)
	Return success. More...
auto	xgboost::collective::Fail (std::string msg, char const *file=__builtin_FILE(), std::int32_t line=__builtin_LINE())
	Return failure. More...
auto	xgboost::collective::Fail (std::string msg, std::error_code errc, char const *file=__builtin_FILE(), std::int32_t line=__builtin_LINE())
	Return failure with errno. More...
auto	xgboost::collective::Fail (std::string msg, Result &&prev, char const *file=__builtin_FILE(), std::int32_t line=__builtin_LINE())
	Return failure with a previous error. More...
auto	xgboost::collective::Fail (std::string msg, std::error_code errc, Result &&prev, char const *file=__builtin_FILE(), std::int32_t line=__builtin_LINE())
	Return failure with a previous error and a new errno. More...
template<typename Fn >
std::enable_if_t< std::is_invocable_v< Fn >, Result >	xgboost::collective::operator<< (Result &&r, Fn &&fn)
void	xgboost::collective::SafeColl (Result const &rc)

Macro Definition Documentation

__builtin_FILE

#define __builtin_FILE

(

)

nullptr

__builtin_LINE

#define __builtin_LINE

(

)

(-1)