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CppArgv

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(C++) argv

With argc the arguments of the main function. It stands for array of arguments.

The array of arguments contains the filename of the program itself at index 0 and then the parameters the user gave when starting the executable.

The size of this array is argc.

Below is an example showing all parameters a user entered.

include <iostream>

int main(int argc, char* argv[])
{
  for(int i=0; i<argc; ++i)
  {
    std::cout << i << " : " << argv[i] << std::endl;
  }
  return 0;
}

This means if you start the program with e.g.

testMain Hello World

Your output will be something like:

0 : testMain
1 : Hello
2 : World

'argv' links

• C

Code links

• #include
• scope operator, ::
• stream out operator, <<
• char
• cout
• endl
• #include
• iostream
• int
• main
• return
• std

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