Boost Users :
Subject: Re: [Boost-users] cann't compile Regular Expressions to Split a String code
From: Anthony Foiani (tkil_at_[hidden])
Date: 2011-07-11 01:03:23
Eric Lin <kingdavid1_at_[hidden]> writes:
> I copied a piece simple Using Regular Expressions
Programs using Boost.Regex must be linked against the relevant
library. That is, Boost.Regex is *not* header-only.
On my system (Linux, Fedora 15 x86-64), I get link errors if I don't
specify the correct library:
$ g++ -o regex-iterator regex-iterator.cpp
[pages and pages of "undefined reference" errors]
But when I do specify the appropriate library, it works fine:
$ g++ -o regex-iterator regex-iterator.cpp -lboost_regex
In general, any time you see an "undefined reference", that's a hint
that you don't have all the necessary libraries on your link line.
(Or that you're trying to use an entity that has a valid signature but
is lacking an implementation; e.g., a template declaration that does
not have a matching definition / instantiation.)
Hope this helps!
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