Replace WIN32 define with _WIN32

Only MinGW gcc defines WIN32, MSVC compiler does not. It's
also defined by qmake (msvc-desktop.conf), but not by qbs ...

Let's just use _WIN32, that's defined everywhere.

Change-Id: I8342a70498be54a965dcf7fae63eaf406aaa3c04
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/libs/utils/smallstringmemory.h

@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include <qsystemdetection.h>
+
 #include <cstdlib>
 #include <cstring>
 #include <memory>
@@ -35,7 +37,7 @@ namespace Memory {
 
 inline char *allocate(std::size_t size)
 {
-#ifdef WIN32
+#ifdef Q_OS_WIN32
     return static_cast<char*>(_aligned_malloc(size, 64));
 #else
     return static_cast<char*>(std::malloc(size));
@@ -44,7 +46,7 @@ inline char *allocate(std::size_t size)
 
 inline void deallocate(char *memory)
 {
-#ifdef WIN32
+#ifdef Q_OS_WIN32
     _aligned_free(memory);
 #else
 #pragma GCC diagnostic push
@@ -58,7 +60,7 @@ inline void deallocate(char *memory)
 
 inline char *reallocate(char *oldMemory, std::size_t newSize)
 {
-#ifdef WIN32
+#ifdef Q_OS_WIN32
     return static_cast<char*>(_aligned_realloc(oldMemory, newSize, 64));
 #else
     return static_cast<char*>(std::realloc(oldMemory, newSize));

src/tools/clangrefactoringbackend/source/clangrefactoringbackend_global.h

@@ -35,7 +35,7 @@ namespace ClangBackEnd {
 using USRName = llvm::SmallVector<char, 128>;
 
 // use std::filesystem::path if it is supported by all compilers
-#ifdef WIN32
+#ifdef _WIN32
 const char nativeSeperator = '\\';
 #else
 const char nativeSeperator = '/';

src/tools/clangrefactoringbackend/source/sourcelocationsutils.h

@@ -58,7 +58,7 @@ Utils::SmallString fromNativePath(Container container)
 {
     Utils::SmallString path(container.data(), container.size());
 
-#ifdef WIN32
+#ifdef _WIN32
     std::replace(path.begin(), path.end(), '\\', '/');
 #endif
 

src/tools/clangrefactoringbackend/source/symbolfinder.cpp

@@ -43,7 +43,7 @@ namespace {
 
 std::string toNativePath(std::string &&path)
 {
-#ifdef WIN32
+#ifdef _WIN32
     std::replace(path.begin(), path.end(), '/', '\\');
 #endif
 

tests/unit/unittest/filesystem-utilities.h

@@ -28,7 +28,7 @@
 #include <string>
 
 // use std::filesystem::path if it is supported by all compilers
-#ifdef WIN32
+#ifdef _WIN32
 const char nativeSeperator = '\\';
 #else
 const char nativeSeperator = '/';
@@ -37,7 +37,7 @@ const char nativeSeperator = '/';
 inline
 std::string toNativePath(std::string &&path)
 {
-#ifdef WIN32
+#ifdef _WIN32
     std::replace(path.begin(), path.end(), '/', '\\');
 #endif