derek.holloway
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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
// RUN: %clang_cc1 -verify -Wno-vla %s
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/* WG14 N1460: Yes
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* Subsetting the standard
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*/
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// If we claim to not support the feature then we expect diagnostics when
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// using that feature. Otherwise, we expect no diagnostics.
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#ifdef __STDC_NO_COMPLEX__
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// PS4/PS5 set this to indicate no <complex.h> but still support the
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// _Complex syntax.
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#ifdef __SCE__
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#define HAS_COMPLEX
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#else
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// We do not have any other targets which do not support complex, so we
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// don't expect to get into this block.
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#error "it's unexpected that we don't support complex"
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#endif
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float _Complex fc;
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double _Complex dc;
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long double _Complex ldc;
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#else
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#define HAS_COMPLEX
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float _Complex fc;
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double _Complex dc;
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long double _Complex ldc;
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#endif
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#ifdef __STDC_NO_VLA__
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// We do not have any targets which do not support VLAs, so we don't expect
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// to get into this block.
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#error "it's unexpected that we don't support VLAs"
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void func(int n, int m[n]) {
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int array[n];
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}
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#else
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#define HAS_VLA
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void func(int n, int m[n]) {
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int array[n];
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}
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#endif
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// NB: it's not possible to test for __STDC_NO_THREADS__ because that is
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// specifically about whether <threads.h> exists and is supported, which is
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// outside the control of the compiler. It does not cover use of thread_local.
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#if defined(HAS_COMPLEX) && defined(HAS_VLA)
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// If we support all these optional features, we don't expect any other
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// diagnostics to have fired.
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// expected-no-diagnostics
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#endif
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