On 26-Jun-97 Leo Shuster wrote:
>
>>But it needs some g++ comand-line options hack (at least for FreeBSD),
>>and it is not described anywhere.
> Hmmm... I wasn't aware of that. g++ under Linux includes
> compiles the string class without any hacks.
My program crash with core dump if compiled without "-fexternal-templates"
But it happens only when PgEnv used like
PgEnv env("",host_name,...
that is with explicit constructor.
>
>>Moreover, it is not obvious how to use
>>e.g. PgEnv, which uses "string".
> There are examples in every one of the example programs
> of how PgEnv is used. In most of my programs, I do not
> even use PgEnv class since PgDatabase takes care of
> all the environment setup for me.
In my distribution (postgresql-6.1.tar.gz) src/libpq++/example/* are not ever
contain PgEnv word. But I indeed need of PgEnv(...) because it is more
suitable than dinamical changing environment on various hosts
[ skipped ]
>>And there are some difficulties in using gdb with C++ templates.
> True, but it's not impossible. gdb seems to work pretty
> well in my projects under Linux.
May be there are some special tricks when gdb is used for templates
classes calls tracing?
- ----------------------------------
Sergey Kosyakov
Landau Institute for Theoretical Physics
E-Mail: Sergey S. Kosyakov <ks@itp.ac.ru>
Date: 26-Jun-97
Time: 18:39:17
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