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Asked: 2026-05-21T02:14:37+00:00

I am iterating over DNA sequences pulling out chunks of 5-15 bases at a

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I am iterating over DNA sequences pulling out chunks of 5-15 bases at a time into C++ std::string objects. Occasionally, my string will contain a non ATCG base, and I want to take an action when this happens. For example, I might see:

CTACGGTACGRCTA

Because there is an ‘R’, I want to recognize this case. I am familiar with regex, but people seem to recommend several different libraries. I’ve seen Boost, TR1, and others. Can someone please suggest either a different way to catch my cases or tell me which library I should use and why?

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1 Answer

  1. Editorial Team

    A regular expression is overkill for this. You can use std::string::find_first_not_of().

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