C++ functions not visible to 'break'

[Gabriel Zachmann]

When I try to set a breakpoint in a C++ program,
like this

    (gdb) b col::Matrix::check

I get 

    Can't find member of namespace, class, struct, or union named
    "col::Matrix::check"

When I type

    (gdb) b 'col::Matrix::check<TAB>

I get a bell (no completion at all).

When I type

    (gdb) b<TAB><TAB>

I get 

    Display all 1984 possibilities? (y or n)

and when I answer 'y', I see "functions" like

    wint_t
    {anonymous}::MaxNumObjs
    init.c

I also see a few real functions and member functions,
but 1984 are definitely not enough.

What's the deal? What am I doing wrong?

I have compiled my program and all libraries (.so's) with -g3 -ggdb3,
under RedHat 7.1 with g++ 2.96.

Frustrated,
Gab.


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