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migrate to std::ranges

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Move the various seq_ functions, as well as std::(stable_)sort,
std::accumulate, std::transform, std::find, std::find_if to their C++20
std::ranges counterparts.
This commit is contained in:
Dirk-Jan C. Binnema
2026-07-24 21:28:58 +03:00
committed by Seth Ladygo
parent 1b42ad6099
commit 4489d513be
29 changed files with 71 additions and 131 deletions
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24
lib/utils/mu-utils.cc
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@ -34,7 +34,6 @@
#include <string.h>
#include <iostream>
#include <algorithm>
#include <numeric>
#include <functional>
#include <cinttypes>
#include <charconv>
@ -339,25 +338,18 @@ Mu::join(const std::vector<std::string>& svec, const std::string& sepa)
/* calculate the overall size beforehand, to avoid re-allocations. */
size_t value_len =
std::accumulate(svec.cbegin(), svec.cend(), std::size_t{},
[](size_t size, const std::string& s) {
return size + s.size();
}) + (svec.size() - 1) * sepa.length();
size_t value_len{(svec.size() - 1) * sepa.length()};
for (const auto& s : svec)
value_len += s.size();
std::string value;
value.reserve(value_len);
std::accumulate(svec.cbegin(), svec.cend(), std::ref(value),
[&](std::string& s1, const std::string& s2)->std::string& {
if (s1.empty())
s1 = s2;
else {
s1.append(sepa);
s1.append(s2);
}
return s1;
});
value.append(svec.front());
for (auto it = std::next(svec.cbegin()); it != svec.cend(); ++it) {
value.append(sepa);
value.append(*it);
}
return value;
}