llvm-project/clang/test/Preprocessor/pr19649-unsigned-wchar_t.c

// RUN: %clang_cc1 -triple i386-pc-cygwin -E -x c %s
// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -E -fwchar-type=short -fno-signed-wchar -x c %s

#if (L'\0' - 1 < 0)
# error "Unexpected expression evaluation result"
#endif
Commit patch for PR19649. Set the correct sign of wide character for literals based on underlying type of wchar_t. Reviewed: http://reviews.llvm.org/D7559 Patch by Rachel Craig; Test cases by Hubert Tong. llvm-svn: 230333 2015-02-24 21:34:20 +08:00			`// RUN: %clang_cc1 -triple i386-pc-cygwin -E -x c %s`
Driver: hoist the `wchar_t` handling to the driver Move the logic for determining the `wchar_t` type information into the driver. Rather than passing the single bit of information of `-fshort-wchar` indicate to the frontend the desired type of `wchar_t` through a new `-cc1` option of `-fwchar-type` and indicate the signedness through `-f{,no-}signed-wchar`. This replicates the current logic which was spread throughout Basic into the `RenderCharacterOptions`. Most of the changes to the tests are to ensure that the frontend uses the correct type. Add a new test set under `test/Driver/wchar_t.c` to ensure that we calculate the proper types for the various cases. llvm-svn: 315126 2017-10-07 07:09:55 +08:00			`// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -E -fwchar-type=short -fno-signed-wchar -x c %s`
Commit patch for PR19649. Set the correct sign of wide character for literals based on underlying type of wchar_t. Reviewed: http://reviews.llvm.org/D7559 Patch by Rachel Craig; Test cases by Hubert Tong. llvm-svn: 230333 2015-02-24 21:34:20 +08:00
			`#if (L'\0' - 1 < 0)`
			`# error "Unexpected expression evaluation result"`
			`#endif`