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Fix Keep/RemoveIfBegins #488

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Sep 11, 2023
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4 changes: 2 additions & 2 deletions include/emp/io/File.hpp
Original file line number Diff line number Diff line change
Expand Up @@ -243,14 +243,14 @@ namespace emp {
/// Keep only strings that contain a specific substring.
File & KeepIfBegins(const String & prefix) {
return KeepIf(
[&prefix](const String & line){ return line.find(prefix) != String::npos; }
[&prefix](const String & line){ return line.find(prefix) == 0; }
);
}

/// Remove all strings that contain a specific substring.
File & RemoveIfBegins(const String & prefix) {
return KeepIf(
[&prefix](const String & line){ return line.Find(prefix) == String::npos; }
[&prefix](const String & line){ return line.Find(prefix) != 0; }
);
}

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