[libc-commits] [libc] [libc][wctype] Create generation script for classification lookup tables (PR #172042)

[via libc-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

The build failed before running any tests. Click on a failure below to see the details.

<details>
<summary>libc/test/src/__support/wctype/CMakeFiles/libc.test.src.__support.wctype.wctype_classification_functions_util_test.__unit__.__build__.dir/wctype_classification_utils_test.cpp.o</summary>

```
FAILED: libc/test/src/__support/wctype/CMakeFiles/libc.test.src.__support.wctype.wctype_classification_functions_util_test.__unit__.__build__.dir/wctype_classification_utils_test.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DLIBC_NAMESPACE=__llvm_libc_22_0_0_git -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libc -isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=gnu++17 -UNDEBUG -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=clang_vector -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=word -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -fpie -ffixed-point -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -MD -MT libc/test/src/__support/wctype/CMakeFiles/libc.test.src.__support.wctype.wctype_classification_functions_util_test.__unit__.__build__.dir/wctype_classification_utils_test.cpp.o -MF libc/test/src/__support/wctype/CMakeFiles/libc.test.src.__support.wctype.wctype_classification_functions_util_test.__unit__.__build__.dir/wctype_classification_utils_test.cpp.o.d -o libc/test/src/__support/wctype/CMakeFiles/libc.test.src.__support.wctype.wctype_classification_functions_util_test.__unit__.__build__.dir/wctype_classification_utils_test.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/src/__support/wctype/wctype_classification_utils_test.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/src/__support/wctype/wctype_classification_utils_test.cpp:9:
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/wctype/wctype_classification_utils.h:33:23: error: use of undeclared identifier 'cpp'
33 | static_assert(4352 <= cpp::numeric_limits<unsigned short>::max());
|                       ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/wctype/wctype_classification_utils.h:33:52: error: expected '(' for function-style cast or type construction
33 | static_assert(4352 <= cpp::numeric_limits<unsigned short>::max());
|                                           ~~~~~~~~ ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/wctype/wctype_classification_utils.h:34:24: error: use of undeclared identifier 'cpp'
34 | static_assert(39168 <= cpp::numeric_limits<unsigned short>::max());
|                        ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/wctype/wctype_classification_utils.h:34:53: error: expected '(' for function-style cast or type construction
34 | static_assert(39168 <= cpp::numeric_limits<unsigned short>::max());
|                                            ~~~~~~~~ ^
4 errors generated.
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/172042