简介
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定义于头文件
<stdexcept> |
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class out_of_range;
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定义要作为异常引发的对象类型。它报告试图访问定义范围之外的元素所导致的错误。它可以由std：：bitset和std：：basic_string的成员函数、std：：stoi和std：：stod函数族以及边界检查的成员访问函数（例如std：：vector：：at和std：：map：：at）抛出。
继承关系如下：
成员函数
Member functions
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(constructor)
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constructs a new out_of_range object with the given message (public member function) |
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operator=
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replaces the out_of_range object (public member function) |
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what
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returns the explanatory string (public member function) |
std::out_of_range::out_of_range
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out_of_range( const std::string& what_arg );
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(1) | |
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out_of_range( const char* what_arg );
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(2) | (since C++11) |
| (3) | ||
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out_of_range( const out_of_range& other );
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(until C++11) | |
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out_of_range( const out_of_range& other ) noexcept;
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(since C++11) | |
what_arg as explanatory string that can be accessed through what().*this and other both have dynamic type std::out_of_range then std::strcmp(what(), other.what()) == 0. (since C++11)Parameters
| what_arg | - | explanatory string |
| other | - | another exception object to copy |
Exceptions
Notes
Because copying std::out_of_range is not permitted to
throw exceptions, this message is typically stored internally as a
separately-allocated reference-counted string. This is also why there is
no constructor taking std::string&&: it would have to copy the content anyway.
std::out_of_range::operator=
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out_of_range& operator=( const out_of_range& other );
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(until C++11) | |
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out_of_range& operator=( const out_of_range& other ) noexcept;
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(since C++11) | |
Assigns the contents of other. If *this and other both have dynamic type std::out_of_range then std::strcmp(what(), other.what()) == 0 after assignment. (since C++11)
Parameters
| other | - | another exception object to assign |
Return value
*this
std::out_of_range::what
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virtual const char* what() const throw();
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(until C++11) | |
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virtual const char* what() const noexcept;
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(since C++11) | |
Returns the explanatory string.
Parameters
(none)
Return value
Pointer to a null-terminated string with explanatory information.
Notes
Implementations are allowed but not required to override what().
原文链接: https://www.cnblogs.com/yilang/p/12759861.html
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