Torsten Martinsen writes:
>
> If the definition is
>
> const char null = '\0';
>
> it should (according to Standard C++) be equivalent to
>
> #define null '\0'
>
> (i.e., NO copies will be allocated, as the const will be resolved at compile time).
>
If using this in inline char &String::operator [] (int n) it says:
c++ -DHAVE_CONFIG_H -I. -I. -I../include
-DDEFAULT_CONFIG_FILE=\"/opt/www/conf/htdig.conf\" -I../include -I../htlib
-I../htnet -I../htcommon -I../htword
-I../db/dist -I../db/dist -I../db/include -I../db/include
-I/usr/include -g -O2 -Wall -c String.cc
htString.h: In method `char & String::operator [](int)':
In file included from String.cc:16:
htString.h:235: warning: conversion from `const char' to `char &' discards const
htString.h:233: warning: reference to local variable `null' returned
That's why I did :
static char null = '\0';
inline char &String::operator [] (int n)
{
if(n < 0) n = Length + n;
if(n >= Length || n < 0) return null;
return Data[n];
}
Cheers,
--
Loic Dachary
ECILA
100 av. du Gal Leclerc
93500 Pantin - France
Tel: 33 1 56 96 09 80, Fax: 33 1 56 96 09 61
e-mail: [EMAIL PROTECTED] URL: http://www.senga.org/
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