std::error_code

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C++
 
实用工具库
类型的支持 (basic types, RTTI, type traits)
动态内存管理
错误处理
程序实用工具
可变参数函数
日期和时间
函数对象
initializer_list（C++11）
bitset
hash（C++11）
关系运算符
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
双和元组
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Pairs and tuples
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pair
tuple（C++11）
piecewise_construct_t（C++11）
piecewise_construct（C++11）
掉期，远期和移动
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Swap, forward and move
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swap
forward（C++11）
move（C++11）
move_if_noexcept（C++11）
declval（C++11）
 
错误处理
异常处理
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Exception handling
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exception
uncaught_exception
exception_ptr（C++11）
make_exception_ptr（C++11）
current_exception（C++11）
rethrow_exception（C++11）
nested_exception（C++11）
throw_with_nested（C++11）
rethrow_if_nested（C++11）
异常处理故障
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Exception handling failures
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terminate
terminate_handler
get_terminate（C++11）
set_terminate
unexpected（过时了）
bad_exception
unexpected_handler（过时了）
get_unexpected（C++11）（过时了）
set_unexpected（过时了）
异常类
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Exception categories
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logic_error
invalid_argument
domain_error
length_error
out_of_range
runtime_error
range_error
overflow_error
underflow_error
错误代码
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Error codes
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错误代码
errno
断言
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Assertions
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assert
SYSTEM_ERROR设施
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system_error facility
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error_category（C++11）
generic_category（C++11）
system_category（C++11）
error_condition（C++11）
errc（C++11）
error_code（C++11）
system_error（C++11）
 
std::error_code
成员函数
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Member functions
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error_code::error_code
error_code::operator=
error_code::assign
修饰符
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Modifiers
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error_code::clear
观察员
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Observers
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error_code::value
error_code::category
error_code::default_error_condition
error_code::message
error_code::operator bool
非成员函数
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Non-member functions
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operator<
operator==
operator!=
operator<<
make_error_code
Helper类
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Helper classes
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is_error_code_enum
hash<std::error_code>
 
Defined in header <system_error>
class error_code;
 （C++11 起）

std::error_code is a platform-dependent error code. Each std::error_code object holds a pair of error code originating from the operating system, or some low-level interface and a pointer to an object of type std::error_category, which corresponds to the said interface. The error code values may be not unique across different error categories.

目录

[编辑] 成员函数
构造了一个错误代码
Original:
constructs an error code
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（公共成员函数） [edit]
给其他错误代码
Original:
assigns another error code
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（公共成员函数） [edit]
给其他错误代码
Original:
assigns another error code
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（公共成员函数） [edit]
修饰符
Original:
Modifiers
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设置ERROR_CODE在generic_category值0
Original:
sets the error_code to value 0 in generic_category
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（公共成员函数） [edit]
观察员
Original:
Observers
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获得的值的参数error_code
Original:
obtains the value of the error_code
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（公共成员函数） [edit]
获取此ERROR_CODE error_category
Original:
obtains the error_category for this error_code
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（公共成员函数） [edit]
获取此ERROR_CODE error_condition
Original:
obtains the error_condition for this error_code
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（公共成员函数） [edit]
这ERROR_CODE得到解释的字符串
Original:
obtains the explanatory string for this error_code
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（公共成员函数） [edit]
检查，如果该值是非零的
Original:
checks if the value is non-zero
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（公共成员函数） [edit]

[编辑] 非成员函数
比较2error_codes
Original:
compares two error_codes
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（函数） [edit]
输出到输出流中的价值和信息
Original:
outputs the value and the message to an output stream
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（函数） [edit]
（C++11）
从error_category创建了一个错误代码
Original:
creates an error code from an error_category
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（函数） [edit]

[编辑] Helper类

（C++11）
标识一类作为ERROR_CODE枚举
Original:
identifies a class as an error_code enumeration
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（类模板） [edit]
（C++11）
std::error_code的哈希支持
Original:
hash support for std::error_code
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（类模板专业化） [edit]

[编辑] 另请参阅

（C++11）
持有便携式的错误代码
Original:
holds a portable error code
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（类） [edit]
（C++11）
错误类型的基类
Original:
base class for error categories
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（类） [edit]
来自“http://zh.cppreference.com/mwiki/index.php?title=cpp/error/error_code&oldid=27169”