Bootstrap 4
Bootstrap 3
C
C++
算法 | Algorithm
原子性操作 | Atomic operations
概念 | Concepts
容器 | Containers
动态内存管理 | Dynamic memory management
文件系统 | Filesystem
输入/输出 | Input/output
迭代器 | Iterator
关键词 | Keywords
语言 | Language
本土化 | Localizations
数字 | Numerics
规律表达 | Regular expressions
标准库头文件 | Standard library header files
字符串 | Strings
线程支持 | Thread support
应用 | Utilities
assert
C Date and time utilities
C memory management library
C numeric limits interface
CLOCKS_PER_SEC
Date and time utilities
Dynamic memory management
errno
Error handling
Error numbers
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Fixed width integer types
FLT_EVAL_METHOD
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Function objects
Low level memory management
NULL
offsetof
operators (delete[])
operators (new[])
operators (std::bitset)
operators (std::bitset)
operators (std::bitset)
operators (std::chrono::duration)
operators (std::chrono::duration)
operators (std::error_condition)
operators (std::function)
operators (std::optional)
operators (std::pair)
operators (std::time_point)
operators (std::time_point)
operators (std::tuple)
operators (std::unique_ptr)
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Program support utilities
setjmp
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std::any
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std::bitset::to_string
std::bitset::to_ullong
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std::bit_not
std::bit_not<void>
std::bit_or
std::bit_or<void>
std::bit_xor
std::bit_xor<void>
std::boyer_moore_horspool_searcher
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std::byte
std::calloc
std::chars_format
std::chrono::abs(std::chrono::duration)
std::chrono::ceil(std::chrono::duration)
std::chrono::ceil(std::chrono::time_point)
std::chrono::duration
std::chrono::duration::count
std::chrono::duration::duration
std::chrono::duration::max
std::chrono::duration::min
std::chrono::duration::operator-
std::chrono::duration::operator--
std::chrono::duration::operators
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std::chrono::duration::operators (unary)
std::chrono::duration::zero
std::chrono::duration_cast
std::chrono::duration_values
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std::chrono::floor(std::chrono::duration)
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std::chrono::high_resolution_clock
std::chrono::high_resolution_clock::now
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std::is_abstract
std::is_aggregate
std::is_arithmetic
std::is_array
std::is_assignable
std::is_base_of
std::is_bind_expression
std::is_class
std::is_compound
std::is_const
std::is_constructible
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std::is_copy_assignable
std::is_copy_constructible
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std::is_destructible
std::is_empty
std::is_enum
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std::is_final
std::is_floating_point
std::is_function
std::is_fundamental
std::is_integral
std::is_invocable
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std::is_literal_type
std::is_lvalue_reference
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std::is_move_assignable
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std::is_nothrow_default_constructible
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std::is_same
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std::is_union
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std::launder
std::length_error
std::less
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std::less_equal
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std::literals::chrono_literals::operator""h
std::literals::chrono_literals::operator""min
std::literals::chrono_literals::operator""ms
std::literals::chrono_literals::operator""ns
std::literals::chrono_literals::operator""s
std::literals::chrono_literals::operator""us
std::localtime
std::logical_and
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std::logical_or
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std::logic_error
std::longjmp
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std::make_exception_ptr
std::make_from_tuple
std::make_optional
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std::rethrow_exception

STD：重投[医]例外

Defined in header ​​
[noreturn] void rethrow_exception( std::exception_ptr p )​(since C++11)

抛出以前捕获的异常对象(由异常指针引用)。p...

参数

p-non-null std::exception_ptr

返回值

%280%29

例

二次

#include <iostream>
#include <string>
#include <exception>
#include <stdexcept>
 
void handle_eptr(std::exception_ptr eptr) // passing by value is ok
{
    try {
        if (eptr) {
            std::rethrow_exception(eptr
        }
    } catch(const std::exception& e) {
        std::cout << "Caught exception \"" << e.what() << "\"\n";
    }
}
 
int main()
{
    std::exception_ptr eptr;
    try {
        std::string().at(1 // this generates an std::out_of_range
    } catch(...) {
        eptr = std::current_exception( // capture
    }
    handle_eptr(eptr
} // destructor for std::out_of_range called here, when the eptr is destructed

二次

产出：

二次

Caught exception "basic_string::at"

二次

另见

exception_ptr (C++11)shared pointer type for handling exception objects (typedef)
current_exception (C++11)captures the current exception in a std::exception_ptr (function)

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