c++/9966: basic_string::operator+ uses recursice template instantiation

[Stefan Rupp]

The following reply was made to PR c++/9966; it has been noted by GNATS.

From: Stefan Rupp <stefan.rupp@inform-ac.com>
To: gcc-gnats@gcc.gnu.org,  gcc-bugs@gcc.gnu.org,  nobody@gcc.gnu.org, 
 gcc-prs@gcc.gnu.org,  struppi@acm.org
Cc:  
Subject: Re: c++/9966: basic_string::operator+ uses recursice template instantiation
Date: Wed, 05 Mar 2003 16:52:59 +0100

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9966
 
 The question may be a different one:
 
 Is an implementation forced to use such a huge template-depth for 
 compiling the expression in question, so that a template-depth of more 
 than 17 is neccessary, or is it just the GNU string implementation which 
 makes it neccessary for the compiler to have a huge (default) 
 template-depth of 500 (btw. I did not find the defaukt value in the gcc 
 info pages; the only number noted there is the 17 from the ISO standard)?
 
 In the former case the limitation of 17 in the ISO standard is nonsense, 
 in the latter case, the GNU string implementation may be broken.
 
 Since I don't know very much about the internals of the GNU string 
 implementation, any input is welcome.