invalid_argument


class
<stdexcept>
class invalid_argument;

Invalid argument exception

invalid_argument


This class defines the type of objects thrown as exceptions to report an invalid argument.

This class is designed so that any program, not just the elements of the standard library, can throw it as an exception. The constructor of bitset (bitset::bitset) can throw this exception.

It is defined as:
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class invalid_argument : public logic_error {
public:
  explicit invalid_argument (const string& what_arg);
};


Members

constructor
The constructor takes a standard string object as parameter. This value is stored in the object, and its value is used to generate the C-string returned by its inherited member what.


The class inherits the what member function from exception, along with its copy constructor and asignment operator member functions.

Example

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// invalid_argument example
#include <iostream>
#include <stdexcept>
#include <bitset>
using namespace std;

int main (void) {
  try {
    // bitset constructor throws an invalid_argument if initialized
    // with a string containing characters other than 0 and 1
    bitset<5> mybitset (string("01234"));
  }
  catch (invalid_argument& ia) {
	  cerr << "Invalid argument: " << ia.what() << endl;
  }
  return 0;
}


Possible output:

Invalid argument: bitset::_M_copy_from_string


See also