From: Alex Vinokur <alexvn AT bigfoot DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Option -Wunused & STL
Date: Mon, 17 Sep 2001 10:11:01 +0200
Organization: Scopus Network Technologies
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=========================================================
gpp : GNU C++ version 2.95.3 20010315/djgpp (release) (djgpp)
        compiled by GNU C version 2.95.3 20010315/djgpp (release)
Windows98
=========================================================

Option -Wunused :
-Wunused                Warn when a variable is unused

It seems the option doesn't detect unused variables of STL-types.


######### x1.c ##########
#include <string>
#include <vector>
#include <list>
int main ()
{
//--------
string  s1;
vector<int> v1;
list<int> l1;
//--------
int  i1;
char  c1;
float  f1;

  return 0;
}

#########################


####### Compiling #######
%gpp -Wunused x1.c
x1.c: In function `int main()':
x1.c:13: warning: unused variable `float f1'
x1.c:12: warning: unused variable `char c1'
x1.c:11: warning: unused variable `int i1'
#########################


  ===========================
  Alex Vinokur
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    mailto:alexvn AT dr DOT com
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  ===========================