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729379a1e1
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
13 lines
471 B
C
13 lines
471 B
C
// RUN: %clang_cc1 -fsyntax-only -fwchar-type=short -fno-signed-wchar -verify %s
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void f() {
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(void)L"\U00010000"; // unicode escape produces UTF-16 sequence, so no warning
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(void)L'\U00010000'; // expected-error {{character too large for enclosing character literal type}}
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(void)L'ab'; // expected-warning {{extraneous characters in character constant ignored}}
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(void)L'a\u1000'; // expected-warning {{extraneous characters in character constant ignored}}
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}
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