Fix for fuzzing

Author: chusitoo

flatbush.h

@@ -76,6 +76,9 @@ SOFTWARE.
 
 #if defined(FLATBUSH_USE_SIMD)
 #pragma message("Using SIMD intrinsics")
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
 #endif
 
 namespace flatbush {

fuzz_from.cpp

@@ -55,16 +55,16 @@ std::vector<size_t> calculateNumNodesPerLevel(uint32_t iNumItems, uint32_t iNode
 }
 
 template <typename ArrayType>
-int from(const uint8_t *iData, size_t iSize) {
+int from(const uint8_t* iData, size_t iSize) {
   if (iSize < flatbush::gHeaderByteSize) return 0;
   if (iData[0] != flatbush::gValidityFlag) return 0;
   if ((iData[1] >> 4) != flatbush::gVersion) return 0;
   if ((iData[1] & 0x0f) != flatbush::detail::arrayTypeIndex<ArrayType>()) return 0;
-  const auto wNodeSize = *flatbush::detail::bit_cast<uint16_t *>(&iData[2]);
+  const auto wNodeSize = *flatbush::detail::bit_cast<uint16_t*>(&iData[2]);
   if (wNodeSize < 2) return 0;
 
-  const auto wNumItems = *flatbush::detail::bit_cast<uint32_t *>(&iData[4]);
-  const auto &wLevelBounds = calculateNumNodesPerLevel(wNumItems, wNodeSize);
+  const auto wNumItems = *flatbush::detail::bit_cast<uint32_t*>(&iData[4]);
+  const auto& wLevelBounds = calculateNumNodesPerLevel(wNumItems, wNodeSize);
   const auto wNumNodes = wLevelBounds.empty() ? wNumItems : wLevelBounds.back();
   const auto wIndicesByteSize =
       wNumNodes * ((wNumNodes > flatbush::gMaxNumNodes) ? sizeof(uint32_t) : sizeof(uint16_t));
@@ -82,7 +82,7 @@ int from(const uint8_t *iData, size_t iSize) {
   return 0;
 }
 
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *iData, size_t iSize) {
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* iData, size_t iSize) {
   from<int8_t>(iData, iSize);
   from<uint8_t>(iData, iSize);
   from<int16_t>(iData, iSize);

fuzz_neighbors.cpp

@@ -23,6 +23,7 @@ SOFTWARE.
 */
 
 #include <cassert>
+#include <iostream>
 
 #include "flatbush.h"
 

fuzz_search.cpp

@@ -35,14 +35,14 @@ flatbush::Flatbush<double> createIndex() {
   return wIndex;
 }
 
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *iData, size_t iSize) {
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* iData, size_t iSize) {
   static auto sIndex = createIndex();
 
   if (iSize == 32) {
-    const auto wMinX = *flatbush::detail::bit_cast<const double *>(&iData[0]);
-    const auto wMinY = *flatbush::detail::bit_cast<const double *>(&iData[8]);
-    const auto wMaxX = *flatbush::detail::bit_cast<const double *>(&iData[16]);
-    const auto wMaxY = *flatbush::detail::bit_cast<const double *>(&iData[24]);
+    const auto wMinX = *flatbush::detail::bit_cast<const double*>(&iData[0]);
+    const auto wMinY = *flatbush::detail::bit_cast<const double*>(&iData[8]);
+    const auto wMaxX = *flatbush::detail::bit_cast<const double*>(&iData[16]);
+    const auto wMaxY = *flatbush::detail::bit_cast<const double*>(&iData[24]);
 
     auto wResult = sIndex.search({wMinX, wMinY, wMaxX, wMaxY});