From c3bd5ffdc8a3b459f18ba6e35fca93e29f3b0ab0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= Date: Sun, 8 Dec 2019 23:47:10 +0100 Subject: Don't wrap feature detection macros with QT_HAS_FOO() variants Using wrappers for these macros is problematic when for example passing the -frewrite-includes flag to preprocess sources before shipping off to distcc or Icecream. It will also start producing warnings when compilers implement http://eel.is/c++draft/cpp.cond#7.sentence-2. See for example https://reviews.llvm.org/D49091 Both https://clang.llvm.org/docs/LanguageExtensions.html and the SD-6 document at https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations recommend defining '__has_foo(x) 0' as a fallback for compilers without the macros, so that's what we go for. Change-Id: I0298cd3b4a6ff6618821e34642a5ddd6728be767 Reviewed-by: Alex Richardson Reviewed-by: Thiago Macieira --- src/corelib/text/qbytearray.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/corelib/text/qbytearray.cpp') diff --git a/src/corelib/text/qbytearray.cpp b/src/corelib/text/qbytearray.cpp index c50e087c10..e89caabdb0 100644 --- a/src/corelib/text/qbytearray.cpp +++ b/src/corelib/text/qbytearray.cpp @@ -332,7 +332,7 @@ int qstricmp(const char *str1, const char *str2) return int(Incomplete); }; -#if defined(__SSE4_1__) && !(defined(__SANITIZE_ADDRESS__) || QT_HAS_FEATURE(address_sanitizer)) +#if defined(__SSE4_1__) && !(defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)) enum { PageSize = 4096, PageMask = PageSize - 1 }; const __m128i zero = _mm_setzero_si128(); forever { -- cgit v1.2.3