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      std::system_error::operator=

      From cppreference.com
      <cpp‎ |error‎ |system error
       
       
      Utilities library
       
      Diagnostics library
       
       
      system_error& operator=(const system_error& other)noexcept;
      (since C++11)

      Assigns the contents with those ofother. If*this andother both have dynamic typestd::system_error thenstd::strcmp(what(), other.what())==0 after assignment.

      [edit]Parameters

      other - anothersystem_error object to assign with

      [edit]Return value

      *this

      [edit]Example

      Run this code
      #include <cassert>#include <cstring>#include <iostream>#include <system_error> void print(conststd::system_error& e){std::cout<<"code:    ["<< e.code()<<"]\n""message: ["<< e.code().message()<<"]\n""what:    ["<< e.what()<<"]\n\n";} int main(){std::system_error e1(EDOM,std::generic_category(),"Error info #1");    print(e1); std::system_error e2(EIO,std::system_category(),"Error info #2");    print(e2);     e1= e2;assert(std::strcmp(e1.what(), e2.what())==0);    print(e1);}

      Possible output:

      code:    [generic:33]message: [Numerical argument out of domain]what:    [Error info #1: Numerical argument out of domain] code:    [system:5]message: [Input/output error]what:    [Error info #2: Input/output error] code:    [system:5]message: [Input/output error]what:    [Error info #2: Input/output error]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/error/system_error/operator%3D&oldid=157318"

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