isgraph


function template
<locale> 
template <class charT>
  bool isgraph ( charT c, const locale& loc );

Check if character has graphical representation using locale

Checks whether c is has graphical representation using ctype facet of locale loc, returning the same as a call to:

  
use_facet < ctype<charT> > (loc).is (ctype_base::graph, c)


This function replicates the functionality of its C-library equivalent isgraph. See isgraph for more info.

Parameters

c
Character to be checked.
loc
Locale to be used. Shall have facet ctype present.


Template parameter charT is the character type.

Return Value

true if indeed c has graphical representation, false otherwise.

Example

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// isgraph example (C++)
#include <iostream>
#include <fstream>
#include <string>
#include <locale>
using namespace std;

int main ()
{
  locale loc;
  ifstream myfile ("myfile.txt");
  char c;
  while (myfile.good())
  {
    myfile >> c;
    if ( isgraph(c,loc) ) cout << c;
  }
  myfile.close();
  return 0;
}


This example prints out the contents of myfile.txt without spaces and special characters, i.e. only prints out the characters that qualify as isgraph.

See also

ctype Character type facet (class template)
isgraph (cctype) Check if character has graphical representation using locale (function template)
isprint Check if character is printable using locale (function template)
isspace Check if character is a white-space using locale (function template)
isalnum Check if character is alphanumeric using locale (function template)