ctype::scan_is

Locates the first character in a range that matches a specified mask.

const CharType *scan_is(
      mask _MaskVal, 
     const CharType* _First, 
      const CharType* _Last,
) const;

Parameters

• _MaskVal
  The mask value to be matched by a character.

• _First
  A pointer to the first character in the range to be scanned.

• _Last
  A pointer to the last character in the range to be scanned.

Return Value

A pointer to the first character in a range that does match a specified mask. If no such value exists, the function returns _Last.

Remarks

The member function returns do_scan_is(_MaskVal, _First, _Last).

Example

// ctype_scan_is.cpp
// compile with: /EHsc
#include <locale>
#include <iostream>
using namespace std;

int main( )   
{
   locale loc1 ( "German_Germany" );
   
   char *string = "Hello, my name is John!";

   const char* i = use_facet<ctype<char> > ( loc1 ).scan_is
      ( ctype_base::punct, &string[0], &string[strlen(&string[0])-1] );
   cout << "The first punctuation is \"" << *i << "\" at position: " 
      << i - string << endl;
}

The first punctuation is "," at position: 5

Requirements

Header: <locale>

Namespace: std

See Also

Concepts

ctype Class

ctype Members