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-rw-r--r--src/nix/diff-closures.cc15
1 files changed, 4 insertions, 11 deletions
diff --git a/src/nix/diff-closures.cc b/src/nix/diff-closures.cc
index 5eda309d5..dac4625e6 100644
--- a/src/nix/diff-closures.cc
+++ b/src/nix/diff-closures.cc
@@ -24,24 +24,17 @@ GroupedPaths getClosureInfo(ref<Store> store, const StorePath & toplevel)
GroupedPaths groupedPaths;
- for (auto & path : closure) {
+ for (auto const & path : closure) {
/* Strip the output name. Unfortunately this is ambiguous (we
can't distinguish between output names like "bin" and
version suffixes like "unstable"). */
static std::regex regex("(.*)-([a-z]+|lib32|lib64)");
- std::smatch match;
+ std::cmatch match;
std::string name{path.name()};
- // Used to keep name alive through being potentially overwritten below
- // (to not invalidate the references from the regex result)
- //
- // n.b. cannot be just path.name().{begin,end}() since that returns const
- // char *, which does not, for some reason, convert as required on
- // libstdc++. Seems like a libstdc++ bug or standard bug to me... we
- // can afford the allocation in any case.
- const std::string origName{path.name()};
+ std::string_view const origName = path.name();
std::string outputName;
- if (std::regex_match(origName, match, regex)) {
+ if (std::regex_match(origName.begin(), origName.end(), match, regex)) {
name = match[1];
outputName = match[2];
}