logic_error Class

 

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The class serves as the base class for all exceptions thrown to report errors presumably detectable before the program executes, such as violations of logical preconditions.

class logic_error : public exception {  
public:  
    explicit logic_error(const string& message);

    explicit logic_error(const char *message);

};  

The value returned by what is a copy of message.data.

// logic_error.cpp  
// compile with: /EHsc /GR  
#include <iostream>  
using namespace std;  
  
int main( )  
{  
   try   
   {  
      throw logic_error( "logic error" );  
   }  
   catch ( exception &e )   
   {  
      cerr << "Caught: " << e.what( ) << endl;  
      cerr << "Type: " << typeid( e ).name( ) << endl;  
   };  
}  

Output

Caught: logic error  
Type: class std::logic_error  

Header: <stdexcept>

Namespace: std

exception Class
Thread Safety in the C++ Standard Library

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