release/20.x: [libcxx] Provide locale conversions to tests through lit substitution (#105651) #136449
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…llvm#105651) There are 2 problems today that this PR resolves: libcxx tests assume the thousands separator for fr_FR locale is x00A0 on Windows. This currently fails when run on newer versions of Windows (it seems to have been updated to the new correct value of 0x202F around windows 11. The exact windows version where it changed doesn't seem to be documented anywhere). Depending the OS version, you need different values. There are several ifdefs to determine the environment/platform-specific locale conversion values and it leads to maintenance as things change over time. This PR includes the following changes: - Provide the environment's locale conversion values through a substitution. The test can opt in by placing the substitution value in a define flag. - Remove the platform ifdefs (the swapping of values between Windows, Linux, Apple, AIX). This is accomplished through a lit feature action that fetches the environment's locale conversions (lconv) for members like 'thousands_sep' that we need to provide. This should ensure that we don't lose the effectiveness of the test itself. In addition, as a result of the above, this PR: - Fixes a handful of locale tests which unexpectedly fail on newer Windows versions. - Resolves 3 XFAIL FIX-MEs. Originally submitted in llvm#86649. Co-authored-by: Rodrigo Salazar <[email protected]> (cherry picked from commit f909b22)
…lvm#131675) The patch that added the new locale Lit features was created before we switched to a 0-1 macro for _LIBCPP_HAS_WIDE_CHARACTERS, leading to that patch referring to the obsolete _LIBCPP_HAS_NO_WIDE_CHARACTERS macro that is never defined nowadays. (cherry picked from commit 297f6d9)
llvmbot
added
the
libc++
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@llvm/pr-subscribers-libcxx Author: None (llvmbot) ChangesRequested by: @mstorsjo Full diff: https://github.com/llvm/llvm-project/pull/136449.diff 9 Files Affected:
diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_fr_FR.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_fr_FR.pass.cpp
index bbb67d694970a..f02241ad36a5b 100644
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_fr_FR.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_fr_FR.pass.cpp
@@ -13,6 +13,8 @@
// REQUIRES: locale.fr_FR.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DFR_MON_THOU_SEP=%{LOCALE_CONV_FR_FR_UTF_8_MON_THOUSANDS_SEP}
+
// <locale>
// class money_get<charT, InputIterator>
@@ -59,7 +61,8 @@ class my_facetw
};
static std::wstring convert_thousands_sep(std::wstring const& in) {
- return LocaleHelpers::convert_thousands_sep_fr_FR(in);
+ const wchar_t fr_sep = LocaleHelpers::mon_thousands_sep_or_default(FR_MON_THOU_SEP);
+ return LocaleHelpers::convert_thousands_sep(in, fr_sep);
}
#endif // TEST_HAS_NO_WIDE_CHARACTERS
diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_ru_RU.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_ru_RU.pass.cpp
index e680f2ea8816a..371cf0e90c8d3 100644
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_ru_RU.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_ru_RU.pass.cpp
@@ -11,6 +11,8 @@
// REQUIRES: locale.ru_RU.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DRU_MON_THOU_SEP=%{LOCALE_CONV_RU_RU_UTF_8_MON_THOUSANDS_SEP}
+
// XFAIL: glibc-old-ru_RU-decimal-point
// <locale>
@@ -52,7 +54,8 @@ class my_facetw
};
static std::wstring convert_thousands_sep(std::wstring const& in) {
- return LocaleHelpers::convert_thousands_sep_ru_RU(in);
+ const wchar_t ru_sep = LocaleHelpers::mon_thousands_sep_or_default(RU_MON_THOU_SEP);
+ return LocaleHelpers::convert_thousands_sep(in, ru_sep);
}
#endif // TEST_HAS_NO_WIDE_CHARACTERS
diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_fr_FR.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_fr_FR.pass.cpp
index 47a48deb3368c..9ac95cc52ac07 100644
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_fr_FR.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_fr_FR.pass.cpp
@@ -13,6 +13,8 @@
// REQUIRES: locale.fr_FR.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DFR_MON_THOU_SEP=%{LOCALE_CONV_FR_FR_UTF_8_MON_THOUSANDS_SEP}
+
// <locale>
// class money_put<charT, OutputIterator>
@@ -59,7 +61,8 @@ class my_facetw
};
static std::wstring convert_thousands_sep(std::wstring const& in) {
- return LocaleHelpers::convert_thousands_sep_fr_FR(in);
+ const wchar_t fr_sep = LocaleHelpers::mon_thousands_sep_or_default(FR_MON_THOU_SEP);
+ return LocaleHelpers::convert_thousands_sep(in, fr_sep);
}
#endif // TEST_HAS_NO_WIDE_CHARACTERS
diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_ru_RU.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_ru_RU.pass.cpp
index 4aea1016e735b..be1e397488468 100644
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_ru_RU.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_ru_RU.pass.cpp
@@ -11,6 +11,8 @@
// REQUIRES: locale.ru_RU.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DRU_MON_THOU_SEP=%{LOCALE_CONV_RU_RU_UTF_8_MON_THOUSANDS_SEP}
+
// XFAIL: glibc-old-ru_RU-decimal-point
// <locale>
@@ -52,7 +54,8 @@ class my_facetw
};
static std::wstring convert_thousands_sep(std::wstring const& in) {
- return LocaleHelpers::convert_thousands_sep_ru_RU(in);
+ const wchar_t ru_sep = LocaleHelpers::mon_thousands_sep_or_default(RU_MON_THOU_SEP);
+ return LocaleHelpers::convert_thousands_sep(in, ru_sep);
}
#endif // TEST_HAS_NO_WIDE_CHARACTERS
diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/thousands_sep.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/thousands_sep.pass.cpp
index 2a70741d2a0fa..6b6570576a082 100644
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/thousands_sep.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/thousands_sep.pass.cpp
@@ -9,13 +9,14 @@
// NetBSD does not support LC_MONETARY at the moment
// XFAIL: netbsd
-// XFAIL: LIBCXX-FREEBSD-FIXME
-
// REQUIRES: locale.en_US.UTF-8
// REQUIRES: locale.fr_FR.UTF-8
// REQUIRES: locale.ru_RU.UTF-8
// REQUIRES: locale.zh_CN.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DFR_MON_THOU_SEP=%{LOCALE_CONV_FR_FR_UTF_8_MON_THOUSANDS_SEP}
+// ADDITIONAL_COMPILE_FLAGS: -DRU_MON_THOU_SEP=%{LOCALE_CONV_RU_RU_UTF_8_MON_THOUSANDS_SEP}
+
// <locale>
// class moneypunct_byname<charT, International>
@@ -27,6 +28,7 @@
#include <cassert>
#include "test_macros.h"
+#include "locale_helpers.h"
#include "platform_support.h" // locale name macros
class Fnf
@@ -110,17 +112,10 @@ int main(int, char**)
Fnt f(LOCALE_fr_FR_UTF_8, 1);
assert(f.thousands_sep() == ' ');
}
- // The below tests work around GLIBC's use of U202F as mon_thousands_sep.
+
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
-#if defined(_CS_GNU_LIBC_VERSION)
- const wchar_t fr_sep = glibc_version_less_than("2.27") ? L' ' : L'\u202F';
-#elif defined(_WIN32)
- const wchar_t fr_sep = L'\u00A0';
-#elif defined(_AIX)
- const wchar_t fr_sep = L'\u202F';
-#else
- const wchar_t fr_sep = L' ';
-#endif
+ const wchar_t fr_sep = LocaleHelpers::mon_thousands_sep_or_default(FR_MON_THOU_SEP);
+
{
Fwf f(LOCALE_fr_FR_UTF_8, 1);
assert(f.thousands_sep() == fr_sep);
@@ -140,19 +135,8 @@ int main(int, char**)
assert(f.thousands_sep() == sep);
}
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
- // The below tests work around GLIBC's use of U00A0 as mon_thousands_sep
- // and U002E as mon_decimal_point.
- // TODO: Fix thousands_sep for 'char'.
- // related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16006
-# if defined(_CS_GNU_LIBC_VERSION)
- // FIXME libc++ specifically works around \u00A0 by translating it into
- // a regular space.
- const wchar_t wsep = glibc_version_less_than("2.27") ? L'\u00A0' : L'\u202F';
-# elif defined(_WIN32) || defined(_AIX)
- const wchar_t wsep = L'\u00A0';
-# else
- const wchar_t wsep = L' ';
-# endif
+ const wchar_t wsep = LocaleHelpers::mon_thousands_sep_or_default(RU_MON_THOU_SEP);
+
{
Fwf f(LOCALE_ru_RU_UTF_8, 1);
assert(f.thousands_sep() == wsep);
diff --git a/libcxx/test/std/localization/locale.categories/facet.numpunct/locale.numpunct.byname/thousands_sep.pass.cpp b/libcxx/test/std/localization/locale.categories/facet.numpunct/locale.numpunct.byname/thousands_sep.pass.cpp
index 850352b3bc1ec..ccecd85f2ff87 100644
--- a/libcxx/test/std/localization/locale.categories/facet.numpunct/locale.numpunct.byname/thousands_sep.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/facet.numpunct/locale.numpunct.byname/thousands_sep.pass.cpp
@@ -14,6 +14,8 @@
// REQUIRES: locale.en_US.UTF-8
// REQUIRES: locale.fr_FR.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DFR_THOU_SEP=%{LOCALE_CONV_FR_FR_UTF_8_THOUSANDS_SEP}
+
// <locale>
// template <class charT> class numpunct_byname;
@@ -25,6 +27,7 @@
#include <cassert>
#include "test_macros.h"
+#include "locale_helpers.h"
#include "platform_support.h" // locale name macros
int main(int, char**)
@@ -74,18 +77,11 @@ int main(int, char**)
}
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
{
-#if defined(_CS_GNU_LIBC_VERSION)
- const wchar_t wsep = glibc_version_less_than("2.27") ? L' ' : L'\u202f';
-# elif defined(_AIX)
- const wchar_t wsep = L'\u202F';
-# elif defined(_WIN32)
- const wchar_t wsep = L'\u00A0';
-# else
- const wchar_t wsep = L',';
-# endif
- typedef wchar_t C;
- const std::numpunct<C>& np = std::use_facet<std::numpunct<C> >(l);
- assert(np.thousands_sep() == wsep);
+ const wchar_t wsep = LocaleHelpers::thousands_sep_or_default(FR_THOU_SEP);
+
+ typedef wchar_t C;
+ const std::numpunct<C>& np = std::use_facet<std::numpunct<C> >(l);
+ assert(np.thousands_sep() == wsep);
}
#endif // TEST_HAS_NO_WIDE_CHARACTERS
}
diff --git a/libcxx/test/std/time/time.duration/time.duration.nonmember/ostream.pass.cpp b/libcxx/test/std/time/time.duration/time.duration.nonmember/ostream.pass.cpp
index aecb96b58719e..ebf907a49c43e 100644
--- a/libcxx/test/std/time/time.duration/time.duration.nonmember/ostream.pass.cpp
+++ b/libcxx/test/std/time/time.duration/time.duration.nonmember/ostream.pass.cpp
@@ -16,6 +16,9 @@
// REQUIRES: locale.fr_FR.UTF-8
// REQUIRES: locale.ja_JP.UTF-8
+// ADDITIONAL_COMPILE_FLAGS: -DFR_THOU_SEP=%{LOCALE_CONV_FR_FR_UTF_8_THOUSANDS_SEP}
+// ADDITIONAL_COMPILE_FLAGS: -DFR_DEC_POINT=%{LOCALE_CONV_FR_FR_UTF_8_DECIMAL_POINT}
+
// <chrono>
// template<class Rep, class Period = ratio<1>> class duration;
@@ -33,6 +36,7 @@
#include <sstream>
#include "make_string.h"
+#include "locale_helpers.h"
#include "platform_support.h" // locale name macros
#include "test_macros.h"
@@ -88,21 +92,11 @@ static void test_values() {
assert(stream_fr_FR_locale<CharT>(1'000.123456s) == SV("1 000,1235s"));
#endif
} else {
-#ifdef _WIN32
- assert(stream_fr_FR_locale<CharT>(-1'000'000s) == SV("-1\u00A0000\u00A0000s"));
- assert(stream_fr_FR_locale<CharT>(1'000'000s) == SV("1\u00A0000\u00A0000s"));
- assert(stream_fr_FR_locale<CharT>(-1'000.123456s) == SV("-1\u00A0000,1235s"));
- assert(stream_fr_FR_locale<CharT>(1'000.123456s) == SV("1\u00A0000,1235s"));
-#elif defined(__APPLE__)
- assert(stream_fr_FR_locale<CharT>(-1'000'000s) == SV("-1000000s"));
- assert(stream_fr_FR_locale<CharT>(1'000'000s) == SV("1000000s"));
- assert(stream_fr_FR_locale<CharT>(-1'000.123456s) == SV("-1000,1235s"));
- assert(stream_fr_FR_locale<CharT>(1'000.123456s) == SV("1000,1235s"));
-#else
- assert(stream_fr_FR_locale<CharT>(-1'000'000s) == SV("-1\u202f000\u202f000s"));
- assert(stream_fr_FR_locale<CharT>(1'000'000s) == SV("1\u202f000\u202f000s"));
- assert(stream_fr_FR_locale<CharT>(-1'000.123456s) == SV("-1\u202f000,1235s"));
- assert(stream_fr_FR_locale<CharT>(1'000.123456s) == SV("1\u202f000,1235s"));
+#ifndef TEST_HAS_NO_WIDE_CHARACTERS
+ assert(stream_fr_FR_locale<CharT>(-1'000'000s) == L"-1" FR_THOU_SEP "000" FR_THOU_SEP "000s");
+ assert(stream_fr_FR_locale<CharT>(1'000'000s) == L"1" FR_THOU_SEP "000" FR_THOU_SEP "000s");
+ assert(stream_fr_FR_locale<CharT>(-1'000.123456s) == L"-1" FR_THOU_SEP "000" FR_DEC_POINT "1235s");
+ assert(stream_fr_FR_locale<CharT>(1'000.123456s) == L"1" FR_THOU_SEP "000" FR_DEC_POINT "1235s");
#endif
}
diff --git a/libcxx/test/support/locale_helpers.h b/libcxx/test/support/locale_helpers.h
index 3eb24ebf28f52..946c2fed0f3a5 100644
--- a/libcxx/test/support/locale_helpers.h
+++ b/libcxx/test/support/locale_helpers.h
@@ -41,37 +41,6 @@ std::wstring convert_thousands_sep(std::wstring const& in, wchar_t sep) {
return out;
}
-// GLIBC 2.27 and newer use U+202F NARROW NO-BREAK SPACE as a thousands separator.
-// This function converts the spaces in string inputs to U+202F if need
-// be. FreeBSD's locale data also uses U+202F, since 2018.
-// Windows uses U+00A0 NO-BREAK SPACE.
-std::wstring convert_thousands_sep_fr_FR(std::wstring const& in) {
-#if defined(_CS_GNU_LIBC_VERSION)
- if (glibc_version_less_than("2.27"))
- return in;
- else
- return convert_thousands_sep(in, L'\u202F');
-#elif defined(__FreeBSD__)
- return convert_thousands_sep(in, L'\u202F');
-#elif defined(_WIN32)
- return convert_thousands_sep(in, L'\u00A0');
-#else
- return in;
-#endif
-}
-
-// GLIBC 2.27 uses U+202F NARROW NO-BREAK SPACE as a thousands separator.
-// FreeBSD, AIX and Windows use U+00A0 NO-BREAK SPACE.
-std::wstring convert_thousands_sep_ru_RU(std::wstring const& in) {
-#if defined(TEST_HAS_GLIBC)
- return convert_thousands_sep(in, L'\u202F');
-# elif defined(__FreeBSD__) || defined(_WIN32) || defined(_AIX)
- return convert_thousands_sep(in, L'\u00A0');
-# else
- return in;
-# endif
-}
-
std::wstring negate_en_US(std::wstring s) {
#if defined(_WIN32)
return L"(" + s + L")";
@@ -80,6 +49,12 @@ std::wstring negate_en_US(std::wstring s) {
#endif
}
+wchar_t thousands_sep_or_default(std::wstring s) { return !s.empty() ? s[0] : L','; }
+
+wchar_t mon_thousands_sep_or_default(std::wstring s) { return thousands_sep_or_default(s); }
+
+wchar_t decimal_point_or_default(std::wstring s) { return !s.empty() ? s[0] : L'.'; }
+
#endif // TEST_HAS_NO_WIDE_CHARACTERS
std::string negate_en_US(std::string s) {
diff --git a/libcxx/utils/libcxx/test/features.py b/libcxx/utils/libcxx/test/features.py
index e4b413deff4db..10fc4b0afde6b 100644
--- a/libcxx/utils/libcxx/test/features.py
+++ b/libcxx/utils/libcxx/test/features.py
@@ -425,6 +425,10 @@ def _mingwSupportsModules(cfg):
"fr_CA.ISO8859-1": ["fr_CA.ISO8859-1", "French_Canada.1252"],
"cs_CZ.ISO8859-2": ["cs_CZ.ISO8859-2", "Czech_Czech Republic.1250"],
}
+provide_locale_conversions = {
+ "fr_FR.UTF-8": ["decimal_point", "mon_thousands_sep", "thousands_sep"],
+ "ru_RU.UTF-8": ["mon_thousands_sep"],
+}
for locale, alts in locales.items():
# Note: Using alts directly in the lambda body here will bind it to the value at the
# end of the loop. Assigning it to a default argument works around this issue.
@@ -432,10 +436,96 @@ def _mingwSupportsModules(cfg):
Feature(
name="locale.{}".format(locale),
when=lambda cfg, alts=alts: hasAnyLocale(cfg, alts),
- )
+ actions=lambda cfg, locale=locale, alts=alts: _getLocaleFlagsAction(
+ cfg, locale, alts, provide_locale_conversions[locale]
+ )
+ if locale in provide_locale_conversions
+ and ("_LIBCPP_HAS_WIDE_CHARACTERS" not in compilerMacros(cfg) or
+ compilerMacros(cfg)["_LIBCPP_HAS_WIDE_CHARACTERS"] == "1")
+ else [],
+ ),
)
+# Provide environment locale conversions through substitutions to avoid platform specific
+# maintenance.
+def _getLocaleFlagsAction(cfg, locale, alts, members):
+ alts_list = ",".join([f'"{l}"' for l in alts])
+ get_member_list = ",".join([f"lc->{m}" for m in members])
+
+ localeconv_info = programOutput(
+ cfg,
+ r"""
+ #if defined(_WIN32) && !defined(_CRT_SECURE_NO_WARNINGS)
+ #define _CRT_SECURE_NO_WARNINGS
+ #endif
+ #include <stdio.h>
+ #include <locale.h>
+ #include <stdlib.h>
+ #include <wchar.h>
+
+ // Print each requested locale conversion member on separate lines.
+ int main() {
+ const char* locales[] = { %s };
+ for (int loc_i = 0; loc_i < %d; ++loc_i) {
+ if (!setlocale(LC_ALL, locales[loc_i])) {
+ continue; // Choose first locale name that is recognized.
+ }
+
+ lconv* lc = localeconv();
+ const char* members[] = { %s };
+ for (size_t m_i = 0; m_i < %d; ++m_i) {
+ if (!members[m_i]) {
+ printf("\n"); // member value is an empty string
+ continue;
+ }
+
+ size_t len = mbstowcs(nullptr, members[m_i], 0);
+ if (len == static_cast<size_t>(-1)) {
+ fprintf(stderr, "mbstowcs failed unexpectedly\n");
+ return 1;
+ }
+ // Include room for null terminator. Use malloc as these features
+ // are also used by lit configs that don't use -lc++ (libunwind tests).
+ wchar_t* dst = (wchar_t*)malloc((len + 1) * sizeof(wchar_t));
+ size_t ret = mbstowcs(dst, members[m_i], len + 1);
+ if (ret == static_cast<size_t>(-1)) {
+ fprintf(stderr, "mbstowcs failed unexpectedly\n");
+ free(dst);
+ return 1;
+ }
+
+ for (size_t i = 0; i < len; ++i) {
+ if (dst[i] > 0x7F) {
+ printf("\\u%%04x", dst[i]);
+ } else {
+ // c++03 does not allow basic ascii-range characters in UCNs
+ printf("%%c", (char)dst[i]);
+ }
+ }
+ printf("\n");
+ free(dst);
+ }
+ return 0;
+ }
+
+ return 1;
+ }
+ """
+ % (alts_list, len(alts), get_member_list, len(members)),
+ )
+ valid_define_name = re.sub(r"[.-]", "_", locale).upper()
+ return [
+ # Provide locale conversion through a substitution.
+ # Example: %{LOCALE_CONV_FR_FR_UTF_8_THOUSANDS_SEP} = L"\u202f"
+ AddSubstitution(
+ f"%{{LOCALE_CONV_{valid_define_name}_{member.upper()}}}",
+ lambda cfg, value=value: f"'L\"{value}\"'",
+ )
+ for member, value in zip(members, localeconv_info.split("\n"))
+ ]
+
+
# Add features representing the target platform name: darwin, linux, windows, etc...
DEFAULT_FEATURES += [
Feature(name="darwin", when=lambda cfg: "__APPLE__" in compilerMacros(cfg)),
|
mstorsjo
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Backport f909b22 297f6d9
Requested by: @mstorsjo