derek.holloway
7502bf64a4
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91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
// RUN: %clang_cc1 -verify -ffreestanding %s
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/* WG14 ???: yes
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* restricted character set support via digraphs and <iso646.h>
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*
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* NB: I cannot find a definitive document number associated with the feature,
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* which was pulled from the editor's report in the C99 front matter. However,
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* based on discussion in the C99 rationale document, I believe this is
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* referring to features added by AMD1 to support ISO 646 and digraphs.
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*/
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// Validate that we provide iso646.h in freestanding mode.
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#include <iso646.h>
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// Validate that we define all the expected macros and their expected
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// expansions (when suitable for a constant expression) as well.
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#ifndef and
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#error "missing and"
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#else
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_Static_assert((1 and 1) == (1 && 1), "");
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#endif
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#ifndef and_eq
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#error "missing and_eq"
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#endif
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#ifndef bitand
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#error "missing bitand"
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#else
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_Static_assert((1 bitand 3) == (1 & 3), "");
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#endif
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#ifndef bitor
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#error "missing bitor"
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#else
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_Static_assert((1 bitor 2) == (1 | 2), "");
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#endif
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#ifndef compl
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#error "missing compl"
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#else
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_Static_assert((compl 0) == (~0), "");
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#endif
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#ifndef not
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#error "missing not"
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#else
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_Static_assert((not 12) == (!12), "");
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#endif
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#ifndef not_eq
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#error "missing not_eq"
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#else
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_Static_assert((0 not_eq 12) == (0 != 12), "");
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#endif
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#ifndef or
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#error "missing or"
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#else
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// This intentionally diagnoses use of '||' only, because the user likely did
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// not confuse the operator when using 'or' instead.
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_Static_assert((0 or 12) == (0 || 12), ""); // expected-warning {{use of logical '||' with constant operand}} \
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expected-note {{use '|' for a bitwise operation}}
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#endif
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#ifndef or_eq
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#error "missing or_eq"
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#endif
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#ifndef xor
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#error "missing xor"
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#else
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_Static_assert((1 xor 3) == (1 ^ 3), "");
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#endif
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#ifndef xor_eq
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#error "missing xor_eq"
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#endif
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// Validate that digraphs behave the same as their expected counterparts. The
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// definition should match the declaration in every way except spelling.
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#define DI_NAME(f, b) f %:%: b
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#define STD_NAME(f, b) f ## b
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void DI_NAME(foo, bar)(int (*array)<: 0 :>);
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void STD_NAME(foo, bar)(int (*array)[0]) {}
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#define DI_STR(f) %:f
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#define STD_STR(f) #f
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_Static_assert(__builtin_strcmp(DI_STR(testing), STD_STR(testing)) == 0, "");
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