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[C11] Claim conformance to N1464

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That's on the CMPLX macros which Clang supports via __builtin_complex.
This commit is contained in:
Aaron Ballman 2024-05-31 13:51:31 -04:00
parent c232137d93
commit 68a64812d7
2 changed files with 23 additions and 1 deletions
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22
clang/test/C/C11/n1464.c Normal file
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// RUN: %clang_cc1 -verify %s
// expected-no-diagnostics
/* WG14 N1464: ???
* Creation of complex value
*/
// The paper is about the CMPLX macros, which Clang supports via the
// __builtin_complex builtin function. Test the basic functionality.
_Static_assert(__builtin_complex(5.0, 2.0) == 5.0 + 1.0j * 2.0, "");
_Static_assert(__builtin_complex(5.0f, 2.0f) == 5.0f + 1.0j * 2.0f, "");
_Static_assert(__builtin_complex(5.0L, 2.0L) == 5.0L + 1.0j * 2.0L, "");
// Test the edge case involving NaN or infinity.
#define INF(type) (type)__builtin_inf()
#define NAN(type) (type)__builtin_nan("")
_Static_assert(__builtin_complex(5.0f, INF(float)) != 5.0f + 1.0j * INF(float), "");
_Static_assert(__builtin_complex(5.0, INF(double)) != 5.0 + 1.0j * INF(double), "");
_Static_assert(__builtin_complex(5.0L, INF(long double)) != 5.0L + 1.0j * INF(long double), "");
_Static_assert(__builtin_complex(5.0f, NAN(float)) != 5.0f + 1.0j * NAN(float), "");
_Static_assert(__builtin_complex(5.0, NAN(double)) != 5.0 + 1.0j * NAN(double), "");
_Static_assert(__builtin_complex(5.0L, NAN(long double)) != 5.0L + 1.0j * NAN(long double), "");

2
clang/www/c_status.html
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@ -561,7 +561,7 @@ conformance.</p>
<tr>
<td>Creation of complex value</td>
<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1464.htm">N1464</a></td>
<td class="unknown" align="center">Unknown</td>
<td class="full" align="center">Clang 12</td>
</tr>
<tr>
<td>Recommendations for extended identifier characters for C and C++</td>