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authorAlexey Edelev <alexey.edelev@qt.io>2021-09-16 11:30:49 +0200
committerAlexey Edelev <alexey.edelev@qt.io>2021-10-05 01:54:46 +0200
commitef623fd16fa8cb58e7a0f8c04af75ee8b3f2752f (patch)
tree7a6dc05c4f7283e335c192dd975ce056e8a4aea5 /src/corelib/global/qfloat16.h
parent52377899d5825520eb791d3100aa003c87c3cff5 (diff)
Fix __cpp_lib_hypot related error when building in macos
If __cpp_lib_hypot is undefined in macos you may observe the error: error: '__cpp_lib_hypot' is not defined, evaluates to 0 [-Werror,-Wundef] Adding the explicit check for definition suppresses the warning that is treated as an error. Change-Id: Ie4c185fefde2f5bab699d8fc79b6a170e64af393 Reviewed-by: Andrei Golubev <andrei.golubev@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>
Diffstat (limited to 'src/corelib/global/qfloat16.h')
-rw-r--r--src/corelib/global/qfloat16.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/corelib/global/qfloat16.h b/src/corelib/global/qfloat16.h
index c2e5379eb4..59739fdcc1 100644
--- a/src/corelib/global/qfloat16.h
+++ b/src/corelib/global/qfloat16.h
@@ -333,7 +333,7 @@ template <> inline auto qHypot(qfloat16 x, qfloat16 y)
return qfloat16(qHypot(float(x), float(y)));
#endif
}
-#if __cpp_lib_hypot >= 201603L // Expected to be true
+#if defined(__cpp_lib_hypot) && __cpp_lib_hypot >= 201603L // Expected to be true
// If any are not qfloat16, convert each qfloat16 to float:
/* (The following splits the some-but-not-all-qfloat16 cases up, using
(X|Y|Z)&~(X&Y&Z) = X ? ~(Y&Z) : Y|Z = X&~(Y&Z) | ~X&Y | ~X&~Y&Z,