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| git_commit |
commit 155fd97a66349926026f05e3fe2fba55abd894be Author: Hui <hui.xie1990@gmail.com> Date: Fri Jun 6 18:05:36 2025 +0100 [libc++] `flat_meow` transparent comparator string literals (#133654) See discussion in https://cplusplus.github.io/LWG/issue4239 std::flat_map<std::string, int, std::less<>> m; m.try_emplace("abc", 5); // hard error The reason is that we specify in 23.6.8.7 [flat.map.modifiers]/p21 the effect to be as if `ranges::upper_bound` is called. `ranges::upper_bound` requires indirect_strict_weak_order, which requires the comparator to be invocable for all combinations. In this case, it requires const char (&)[4] < const char (&)[4] to be well-formed, which is no longer the case in C++26 after https://wg21.link/P2865R6. This patch uses `std::upper_bound` instead. |
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ldionne-old-macbook-results test results
| Run | Order | Start Time | Duration |
|---|---|---|---|
| Current | 540134 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 540099 | 2025-12-16T16:40:01 | 0:00:00 |
| Baseline | 485288 | 2025-12-16T16:40:01 | 0:00:00 |
Tests Summary
| Status Group | # | # (B) |
|---|---|---|
| Performance Regressions | 4 | 0 |
| Performance Improvements | 1 | 0 |
| Added Tests | 0 | 18 |
| Unchanged Tests | 85 | 72 |
| Total Tests | 90 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 723_llvm_r | 4.81% | 11.557 | 12.113 | - | 0.00% | - |
| 735_gem5_r | 1.68% | 14.080 | 14.316 | - | 0.00% | - |
| 710_omnetpp_r | 1.45% | 8.385 | 8.507 | - | 0.00% | - |
| 737_gmsh_r | 1.03% | 13.135 | 13.270 | - | 0.00% | - |
| Performance Improvements - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 727_cppcheck_r | -1.76% | 25.123 | 24.682 | - | 0.00% | - |
| Added Tests - execution_time |
|---|
| 706_stockfish_r |
| 707_ntest_r |
| 709_cactus_r |
| 710_omnetpp_r |
| 721_gcc_r |
| 723_llvm_r |
| 727_cppcheck_r |
| 729_abc_r |
| 731_astcenc_r |
| 734_vpr_r |
| 735_gem5_r |
| 736_ocio_r |
| 737_gmsh_r |
| 748_flightdm_r |
| 750_sealcrypto_r |
| 753_ns3_r |
| 766_femflow_r |
| 767_nest_r |
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