libstdc++: Report compilation error on formatting "%d" from month_last [PR120650]

For month_day we incorrectly reported day information to be available, which lead
to format_error being thrown from the call to formatter::format at runtime, instead
of making call to format ill-formed.

The included test cover most of the combinations of _ChronoParts and format
specifiers.

	PR libstdc++/120650

libstdc++-v3/ChangeLog:

	* include/bits/chrono_io.h
	(formatter<chrono::month_day_last,_CharT>::parse): Call _M_parse with
	only Month being available.
	* testsuite/std/time/format/data_not_present_neg.cc: New test.

1 files changed, 164 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/std/time/format/data_not_present_neg.cc b/libstdc++-v3/testsuite/std/time/format/data_not_present_neg.cc
new file mode 100644
index 0000000..bb09451
--- /dev/null
+++ b/libstdc++-v3/testsuite/std/time/format/data_not_present_neg.cc
@@ -0,0 +1,164 @@
+// { dg-do compile { target c++20 } }
+
+#include <chrono>
+#include <format>
+
+using namespace std::chrono;
+
+auto d1 = std::format("{:%w}", 10d); // { dg-error "call to consteval function" }
+auto d2 = std::format("{:%m}", 10d); // { dg-error "call to consteval function" }
+auto d3 = std::format("{:%y}", 10d); // { dg-error "call to consteval function" }
+auto d4 = std::format("{:%F}", 10d); // { dg-error "call to consteval function" }
+auto d5 = std::format("{:%T}", 10d); // { dg-error "call to consteval function" }
+auto d6 = std::format("{:%Q}", 10d); // { dg-error "call to consteval function" }
+auto d7 = std::format("{:%Z}", 10d); // { dg-error "call to consteval function" }
+
+auto w1 = std::format("{:%d}", Thursday); // { dg-error "call to consteval function" }
+auto w2 = std::format("{:%m}", Thursday); // { dg-error "call to consteval function" }
+auto w3 = std::format("{:%y}", Thursday); // { dg-error "call to consteval function" }
+auto w4 = std::format("{:%F}", Thursday); // { dg-error "call to consteval function" }
+auto w5 = std::format("{:%T}", Thursday); // { dg-error "call to consteval function" }
+auto w6 = std::format("{:%Q}", Thursday); // { dg-error "call to consteval function" }
+auto w7 = std::format("{:%Z}", Thursday); // { dg-error "call to consteval function" }
+
+auto wi1 = std::format("{:%d}", Thursday[2]); // { dg-error "call to consteval function" }
+auto wi2 = std::format("{:%m}", Thursday[2]); // { dg-error "call to consteval function" }
+auto wi3 = std::format("{:%y}", Thursday[2]); // { dg-error "call to consteval function" }
+auto wi4 = std::format("{:%F}", Thursday[2]); // { dg-error "call to consteval function" }
+auto wi5 = std::format("{:%T}", Thursday[2]); // { dg-error "call to consteval function" }
+auto wi6 = std::format("{:%Q}", Thursday[2]); // { dg-error "call to consteval function" }
+auto wi7 = std::format("{:%Z}", Thursday[2]); // { dg-error "call to consteval function" }
+
+auto wl1 = std::format("{:%d}", Thursday[last]); // { dg-error "call to consteval function" }
+auto wl2 = std::format("{:%m}", Thursday[last]); // { dg-error "call to consteval function" }
+auto wl3 = std::format("{:%y}", Thursday[last]); // { dg-error "call to consteval function" }
+auto wl4 = std::format("{:%F}", Thursday[last]); // { dg-error "call to consteval function" }
+auto wl5 = std::format("{:%T}", Thursday[last]); // { dg-error "call to consteval function" }
+auto wl6 = std::format("{:%Q}", Thursday[last]); // { dg-error "call to consteval function" }
+auto wl7 = std::format("{:%Z}", Thursday[last]); // { dg-error "call to consteval function" }
+
+auto m1 = std::format("{:%d}", January); // { dg-error "call to consteval function" }
+auto m2 = std::format("{:%w}", January); // { dg-error "call to consteval function" }
+auto m3 = std::format("{:%y}", January); // { dg-error "call to consteval function" }
+auto m4 = std::format("{:%F}", January); // { dg-error "call to consteval function" }
+auto m5 = std::format("{:%T}", January); // { dg-error "call to consteval function" }
+auto m6 = std::format("{:%Q}", January); // { dg-error "call to consteval function" }
+auto m7 = std::format("{:%Z}", January); // { dg-error "call to consteval function" }
+
+auto yr1 = std::format("{:%d}", 2025y); // { dg-error "call to consteval function" }
+auto yr2 = std::format("{:%w}", 2025y); // { dg-error "call to consteval function" }
+auto yr3 = std::format("{:%m}", 2025y); // { dg-error "call to consteval function" }
+auto yr4 = std::format("{:%F}", 2025y); // { dg-error "call to consteval function" }
+auto yr5 = std::format("{:%T}", 2025y); // { dg-error "call to consteval function" }
+auto yr6 = std::format("{:%Q}", 2025y); // { dg-error "call to consteval function" }
+auto yr7 = std::format("{:%Z}", 2025y); // { dg-error "call to consteval function" }
+
+auto md1 = std::format("{:%w}", January/10d); // { dg-error "call to consteval function" }
+auto md2 = std::format("{:%y}", January/10d); // { dg-error "call to consteval function" }
+auto md3 = std::format("{:%F}", January/10d); // { dg-error "call to consteval function" }
+auto md4 = std::format("{:%T}", January/10d); // { dg-error "call to consteval function" }
+auto md5 = std::format("{:%Q}", January/10d); // { dg-error "call to consteval function" }
+auto md6 = std::format("{:%Z}", January/10d); // { dg-error "call to consteval function" }
+
+auto mwi1 = std::format("{:%d}", January/Thursday[2]); // { dg-error "call to consteval function" }
+auto mwi2 = std::format("{:%y}", January/Thursday[2]); // { dg-error "call to consteval function" }
+auto mwi3 = std::format("{:%F}", January/Thursday[2]); // { dg-error "call to consteval function" }
+auto mwi4 = std::format("{:%T}", January/Thursday[2]); // { dg-error "call to consteval function" }
+auto mwi5 = std::format("{:%Q}", January/Thursday[2]); // { dg-error "call to consteval function" }
+auto mwi6 = std::format("{:%Z}", January/Thursday[2]); // { dg-error "call to consteval function" }
+
+auto mwl1 = std::format("{:%d}", January/Thursday[last]); // { dg-error "call to consteval function" }
+auto mwl2 = std::format("{:%y}", January/Thursday[last]); // { dg-error "call to consteval function" }
+auto mwl3 = std::format("{:%F}", January/Thursday[last]); // { dg-error "call to consteval function" }
+auto mwl4 = std::format("{:%T}", January/Thursday[last]); // { dg-error "call to consteval function" }
+auto mwl5 = std::format("{:%Q}", January/Thursday[last]); // { dg-error "call to consteval function" }
+auto mwl6 = std::format("{:%Z}", January/Thursday[last]); // { dg-error "call to consteval function" }
+
+auto ml1 = std::format("{:%d}", January/last); // { dg-error "call to consteval function" }
+auto ml2 = std::format("{:%w}", January/last); // { dg-error "call to consteval function" }
+auto ml3 = std::format("{:%y}", January/last); // { dg-error "call to consteval function" }
+auto ml4 = std::format("{:%F}", January/last); // { dg-error "call to consteval function" }
+auto ml5 = std::format("{:%T}", January/last); // { dg-error "call to consteval function" }
+auto ml6 = std::format("{:%Q}", January/last); // { dg-error "call to consteval function" }
+auto ml7 = std::format("{:%Z}", January/last); // { dg-error "call to consteval function" }
+
+auto ym1 = std::format("{:%d}", 2024y/March); // { dg-error "call to consteval function" }
+auto ym2 = std::format("{:%w}", 2024y/March); // { dg-error "call to consteval function" }
+auto ym3 = std::format("{:%F}", 2024y/March); // { dg-error "call to consteval function" }
+auto ym4 = std::format("{:%T}", 2024y/March); // { dg-error "call to consteval function" }
+auto ym5 = std::format("{:%Q}", 2024y/March); // { dg-error "call to consteval function" }
+auto ym6 = std::format("{:%Z}", 2024y/March); // { dg-error "call to consteval function" }
+
+auto ymd1 = std::format("{:%T}", 2021y/January/10d); // { dg-error "call to consteval function" }
+auto ymd2 = std::format("{:%Q}", 2021y/January/10d); // { dg-error "call to consteval function" }
+auto ymd3 = std::format("{:%Z}", 2021y/January/10d); // { dg-error "call to consteval function" }
+
+auto ymwi1 = std::format("{:%T}", 2021y/January/Thursday[2]); // { dg-error "call to consteval function" }
+auto ymwi2 = std::format("{:%Q}", 2021y/January/Thursday[2]); // { dg-error "call to consteval function" }
+auto ymwi3 = std::format("{:%Z}", 2021y/January/Thursday[2]); // { dg-error "call to consteval function" }
+
+auto ymwl1 = std::format("{:%T}", 2021y/January/Thursday[last]); // { dg-error "call to consteval function" }
+auto ymwl2 = std::format("{:%Q}", 2021y/January/Thursday[last]); // { dg-error "call to consteval function" }
+auto ymwl3 = std::format("{:%Z}", 2021y/January/Thursday[last]); // { dg-error "call to consteval function" }
+
+auto yml1 = std::format("{:%T}", 2021y/January/last); // { dg-error "call to consteval function" }
+auto yml2 = std::format("{:%Q}", 2021y/January/last); // { dg-error "call to consteval function" }
+auto yml3 = std::format("{:%Z}", 2021y/January/last); // { dg-error "call to consteval function" }
+
+auto ls1 = std::format("{:%Q}", local_seconds(20s)); // { dg-error "call to consteval function" }
+auto ls2 = std::format("{:%Z}", local_seconds(10s)); // { dg-error "call to consteval function" }
+auto ld1 = std::format("{:%Q}", local_days(days(20))); // { dg-error "call to consteval function" }
+auto ld2 = std::format("{:%Z}", local_days(days(10))); // { dg-error "call to consteval function" }
+
+auto ss1 = std::format("{:%Q}", sys_seconds(20s)); // { dg-error "call to consteval function" }
+auto sd1 = std::format("{:%Q}", sys_days(days(20))); // { dg-error "call to consteval function" }
+
+auto utc = std::format("{:%Q}", utc_clock::now()); // { dg-error "call to consteval function" }
+auto gps = std::format("{:%Q}", gps_clock::now()); // { dg-error "call to consteval function" }
+auto tai = std::format("{:%Q}", tai_clock::now()); // { dg-error "call to consteval function" }
+auto file = std::format("{:%Q}", file_clock::now()); // { dg-error "call to consteval function" }
+
+const auto ltc = local_seconds(10s);
+#if _GLIBCXX_USE_CXX11_ABI || !_GLIBCXX_USE_DUAL_ABI
+const auto zt = zoned_time<seconds>("Europe/Sofia", local_seconds(10s));
+auto zt1 = std::format("{:%Q}", zt); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+#endif
+auto lf1 = std::format("{:%Q}", local_time_format(ltc)); // { dg-error "call to consteval function" }
+
+auto dur1 = std::format("{:%d}", 123s); // { dg-error "call to consteval function" }
+auto dur2 = std::format("{:%w}", 123s); // { dg-error "call to consteval function" }
+auto dur3 = std::format("{:%m}", 123s); // { dg-error "call to consteval function" }
+auto dur4 = std::format("{:%y}", 123s); // { dg-error "call to consteval function" }
+auto dur5 = std::format("{:%F}", 123s); // { dg-error "call to consteval function" }
+auto dur6 = std::format("{:%Z}", 123s); // { dg-error "call to consteval function" }
+
+using HMS = hh_mm_ss<seconds>;
+auto hms1 = std::format("{:%d}", HMS(1255s)); // { dg-error "call to consteval function" }
+auto hms2 = std::format("{:%w}", HMS(1255s)); // { dg-error "call to consteval function" }
+auto hms3 = std::format("{:%m}", HMS(1255s)); // { dg-error "call to consteval function" }
+auto hms4 = std::format("{:%y}", HMS(1255s)); // { dg-error "call to consteval function" }
+auto hms5 = std::format("{:%F}", HMS(1255s)); // { dg-error "call to consteval function" }
+auto hms6 = std::format("{:%Q}", HMS(1255s)); // { dg-error "call to consteval function" }
+auto hms7 = std::format("{:%Z}", HMS(1255s)); // { dg-error "call to consteval function" }
+
+#if _GLIBCXX_USE_CXX11_ABI || !_GLIBCXX_USE_DUAL_ABI
+auto li1 = std::format("{:%d}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li2 = std::format("{:%w}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li3 = std::format("{:%m}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li4 = std::format("{:%y}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li5 = std::format("{:%F}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li6 = std::format("{:%T}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li7 = std::format("{:%Q}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto li8 = std::format("{:%Z}", local_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+
+auto si1 = std::format("{:%d}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si2 = std::format("{:%w}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si3 = std::format("{:%m}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si4 = std::format("{:%y}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si5 = std::format("{:%F}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si6 = std::format("{:%T}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si7 = std::format("{:%Q}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+auto si8 = std::format("{:%Z}", sys_info()); // { dg-error "call to consteval function" "" { target cxx11_abi } }
+#endif
+
+// { dg-error "call to non-'constexpr' function" "" { target *-*-* } 0 }