declaration of ‘void* operator new [](size_t)’ has a different exception specifier

Are you using C++11 or later?

The original operator new() declarations in C++98

throwing:   
void* operator new (std::size_t size) throw (std::bad_alloc);

nothrow:
void* operator new (std::size_t size, const std::nothrow_t& nothrow_value) throw();

placement:
void* operator new (std::size_t size, void* ptr) throw();

Have been changed in C++11 to use noexcept keyword:

throwing:   
void* operator new (std::size_t size);

nothrow:    
void* operator new (std::size_t size, const std::nothrow_t& nothrow_value) noexcept;

placement:  
void* operator new (std::size_t size, void* ptr) noexcept;

from

Different exception specifier with g++ 6.2
原文链接: https://www.cnblogs.com/yeahle/p/12216504.html

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