My brains have gone dry and flakey - I can't get this to work!

From: Paul F. Johnson (paul_at_all-the-johnsons.co.uk)
Date: 12/06/04 

Date: Mon, 06 Dec 2004 14:22:29 +0000

Hi,

Probably the simplest thing in the world, but for some reason, I can't
get it to work. It's basically a search and replace.

Take a string, whizz through it and for each occurence of a letter,
replace it with the capital.

What I have is this (it's a small test)

#include <iostream>
#include <string>

using namespace std;

int main()
{
   string test = "d-mmmm-y", dummy;
   for (int t = 0; t < test.length(); ++t)
   {
      if (test[t] == 'm')
        dummy.insert(t, "M", 0, 1)
      else
        dummy[t] = test[t];
   }
   cout << test << " : " << dummy << endl;
}

This will compile, but aborts with the error

terminate called after throwing an instance of std::out_of_range
   what(): basic_string::insert
Aborted

Okay, I knew insert would be a problem, but the prefered method of

dummy[t] = "M"

gives an error of a conversion from const char * to char *.

As I say, my braincell is befuddled today - any help would be great.

TTFN

Paul

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