system_error Class Reference

#include <format.h>

Inheritance diagram for system_error:

Public Member Functions
template<typename... Args>
	system_error (int error_code, string_view message, const Args &...args)
int	error_code () const

Protected Member Functions
	system_error ()

Protected Attributes
int	error_code_

Private Member Functions
FMT_API void	init (int err_code, string_view format_str, format_args args)

Detailed Description

An error returned by an operating system or a language runtime, for example a file opening error.

Definition at line 2198 of file format.h.

Constructor & Destructor Documentation

system_error::system_error ( )

inlineprotected

Definition at line 2205 of file format.h.

: std::runtime_error("") {}

template<typename... Args>

system_error::system_error ( int  error_code, string_view  message, const Args &...  args  )

inline

Constructs a :class:fmt::system_error object with a description formatted with fmt::format_system_error. message and additional arguments passed into the constructor are formatted similarly to fmt::format.

Example**::

This throws a system_error with the description cannot open file 'madeup': No such file or directory or similar (system message may vary). const char *filename = "madeup"; std::FILE *file = std::fopen(filename, "r"); if (!file) throw fmt::system_error(errno, "cannot open file '{}'", filename);

Definition at line 2227 of file format.h.

    : std::runtime_error("") {
    init(error_code, message, make_format_args(args...));
  }

Member Function Documentation

int system_error::error_code ( ) const

inline

Definition at line 2232 of file format.h.

{ return error_code_; }

FMT_FUNC void system_error::init ( int  err_code, string_view  format_str, format_args  args  )

private

Definition at line 234 of file format-inl.h.

                                                            {
  error_code_ = err_code;
  memory_buffer buffer;
  format_system_error(buffer, err_code, vformat(format_str, args));
  std::runtime_error &base = *this;
  base = std::runtime_error(to_string(buffer));
}

Member Data Documentation

int system_error::error_code_

protected

Definition at line 2203 of file format.h.

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The documentation for this class was generated from the following files:

• wire-cell-build/util/inc/spdlog/fmt/bundled/format.h
• wire-cell-build/util/inc/spdlog/fmt/bundled/format-inl.h