BUG: Fixes crashing issues on macOS Xcode 16 in debug mode.

The bug is from some change in Xcode 16.x where using inline const std::string was
causing cross translation unit initialization crashes (seg-fault).

Signed-off-by: Michael Jackson <[email protected]>BUG

CMakeLists.txt

@@ -15,7 +15,7 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # set project's name
-project(EbsdLibProj VERSION 1.0.35)
+project(EbsdLibProj VERSION 1.0.36)
 
 # ---------- Setup output Directories -------------------------
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY

Source/EbsdLib/Core/EbsdLibConstants.h

@@ -33,8 +33,25 @@
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
 
+/** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ *  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ *  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ *  =======================>   MAC OS WARNING <================================
+ *  Xcode 16 has changes specific to Apple systems where using a static const std::string variable
+ *  inside of an inline function in this header will lead to executable crashes
+ *  in Debug (but not release). This is why the use of StringLiteral was introduced.
+ *
+ *  EbsdStringLiteral are stack allocated instead of heap allocated. Which is Good.
+ *
+ *  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ *  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ *  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ */
 #pragma once
 
+#include "EbsdLib/Core/EbsdStringLiteral.hpp"
+#include "EbsdLib/EbsdLib.h"
+
 #include <cstdint>
 #include <string>
 
@@ -47,7 +64,7 @@ namespace EbsdLib
 
 using Rgb = uint32_t;
 inline constexpr Rgb RGB_MASK = 0x00ffffff; // masks RGB values
-inline const std::string PathSep("|");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral PathSep("|");
 inline constexpr uint8_t Unchecked = 0;
 inline constexpr uint8_t PartiallyChecked = 1;
 inline constexpr uint8_t Checked = 2;
@@ -64,10 +81,10 @@ enum InfoStringFormat
 
 namespace StringConstants
 {
-inline const std::string Statistics("Statistics");
-inline const std::string StatsData("StatsData");
-inline const std::string StatsType("StatsType");
-inline const std::string GBCD("GBCD");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Statistics("Statistics");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral StatsData("StatsData");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral StatsType("StatsType");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral GBCD("GBCD");
 } // namespace StringConstants
 
 namespace NumericTypes
@@ -102,35 +119,35 @@ inline constexpr uint32_t UnknownRefFrameZDirection = 2;
 
 namespace H5Ebsd
 {
-inline const std::string Manufacturer("Manufacturer");
-inline const std::string Header("Header");
-inline const std::string Phases("Phases");
-inline const std::string Phase("Phase");
-inline const std::string Data("Data");
-inline const std::string Index("Index");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Manufacturer("Manufacturer");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Header("Header");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Phases("Phases");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Phase("Phase");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Data("Data");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Index("Index");
 
-inline const std::string ZStartIndex("ZStartIndex");
-inline const std::string ZEndIndex("ZEndIndex");
-inline const std::string ZResolution("Z Resolution");
-inline const std::string StackingOrder("Stacking Order");
-inline const std::string SampleTransformationAngle("SampleTransformationAngle");
-inline const std::string SampleTransformationAxis("SampleTransformationAxis");
-inline const std::string EulerTransformationAngle("EulerTransformationAngle");
-inline const std::string EulerTransformationAxis("EulerTransformationAxis");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral ZStartIndex("ZStartIndex");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral ZEndIndex("ZEndIndex");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral ZResolution("Z Resolution");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral StackingOrder("Stacking Order");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral SampleTransformationAngle("SampleTransformationAngle");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral SampleTransformationAxis("SampleTransformationAxis");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral EulerTransformationAngle("EulerTransformationAngle");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral EulerTransformationAxis("EulerTransformationAxis");
 
 // Each Manufacturer has their own naming scheme for these variables but for
 // DREAM.3D we are going to settle on using these names for consistency
-inline const std::string XResolution("X Resolution");
-inline const std::string YResolution("Y Resolution");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral XResolution("X Resolution");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral YResolution("Y Resolution");
 
 // We store the Maximum number of X and Y Points for the given volume. This
 // allows us to store slices that have different XY voxel dimensions.
-inline const std::string XPoints("Max X Points");
-inline const std::string YPoints("Max Y Points");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral XPoints("Max X Points");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral YPoints("Max Y Points");
 
-inline const std::string FileVersionStr("FileVersion");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral FileVersionStr("FileVersion");
 inline constexpr uint32_t FileVersion = 5;
-inline const std::string EbsdLibVersionStr("EbsdLibVersion");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral EbsdLibVersionStr("EbsdLibVersion");
 } // namespace H5Ebsd
 
 using EnumType = int32_t;
@@ -149,8 +166,8 @@ enum class OEM : EnumType
 
 namespace CellData
 {
-inline const std::string EulerAngles("EulerAngles");
-inline const std::string Phases("Phases");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral EulerAngles("EulerAngles");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Phases("Phases");
 } // namespace CellData
 
 enum EbsdToSampleCoordinateMapping
@@ -163,9 +180,9 @@ enum EbsdToSampleCoordinateMapping
 
 namespace StackingOrder
 {
-inline const std::string LowToHigh("Low To High");
-inline const std::string HighToLow("High To Low");
-inline const std::string UnknownStackingOrder("Unknown Stacking Order");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral LowToHigh("Low To High");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral HighToLow("High To Low");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral UnknownStackingOrder("Unknown Stacking Order");
 
 namespace Utils
 {
@@ -223,9 +240,9 @@ inline constexpr uint32_t UnknownCrystalStructure = 999; //!< UnknownCrystalStru
 
 namespace BravaisLattice
 {
-inline const std::string Unknown("Unknown");
-inline const std::string Cubic("Cubic");
-inline const std::string Hexagonal("Hexagonal");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Unknown("Unknown");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Cubic("Cubic");
+EbsdLib_macOS_NO_EXPORT inline constexpr EbsdStringLiteral Hexagonal("Hexagonal");
 } // namespace BravaisLattice
 
 namespace AngleRepresentation

Source/EbsdLib/Core/EbsdLibDLLExport.h

@@ -69,6 +69,15 @@ building on Windows.
 #define EbsdLib_EXPORT __attribute__((visibility("default")))
 #endif
 #endif
+
+#if !defined(EbsdLib_macOS_NO_EXPORT)
+#if defined(__APPLE__)
+#define EbsdLib_macOS_NO_EXPORT __attribute__((visibility("hidden")))
+#else
+#define EbsdLib_macOS_NO_EXPORT
+#endif
+#endif
+
 #endif
 
 /* If EbsdLib_EXPORT was never defined, define it here */

Source/EbsdLib/Core/StringLiteral.hpp → Source/EbsdLib/Core/EbsdStringLiteral.hpp

@@ -25,21 +25,21 @@ constexpr bool HasNullTerminator(const T (&string)[Size]) noexcept
 } // namespace detail
 
 /**
- * @brief BasicStringLiteral is meant to be a safe container for a string literal allowing for easy access to its size/length.
+ * @brief BasicEbsdStringLiteral is meant to be a safe container for a string literal allowing for easy access to its size/length.
  * This class should always contain a pointer to a static compile time null-terminated string literal.
  * Typical usage will be for static string constants. At this time the constructors allow non string literals to be passed in.
  * This is undesired behavior, but there is no way to overcome this in C++17 without using character parameter packs which come with their own issues.
  * Example:
  * @code
- * static constexpr StringLiteral k_Foo = "foo";
+ * static constexpr EbsdStringLiteral k_Foo = "foo";
  * @endcode
  * @tparam T Character type
  */
 template <class T>
-class BasicStringLiteral
+class BasicEbsdStringLiteral
 {
 public:
-  BasicStringLiteral() = delete;
+  BasicEbsdStringLiteral() = delete;
 
   /**
    * @brief Constructor that accepts a string literal of fixed size. Should be made consteval in C++20.
@@ -48,23 +48,23 @@ class BasicStringLiteral
    * @return
    */
   template <size_t Size>
-  constexpr BasicStringLiteral(const T (&string)[Size])
+  constexpr BasicEbsdStringLiteral(const T (&string)[Size])
   : m_String(string)
   , m_Size(Size)
   {
     if(!detail::HasNullTerminator(string))
     {
-      throw std::runtime_error("BasicStringLiteral must be null-terminated");
+      throw std::runtime_error("BasicEbsdStringLiteral must be null-terminated");
     }
   }
 
-  ~BasicStringLiteral() noexcept = default;
+  ~BasicEbsdStringLiteral() noexcept = default;
 
-  BasicStringLiteral(const BasicStringLiteral&) noexcept = default;
-  BasicStringLiteral(BasicStringLiteral&&) noexcept = default;
+  BasicEbsdStringLiteral(const BasicEbsdStringLiteral&) noexcept = default;
+  BasicEbsdStringLiteral(BasicEbsdStringLiteral&&) noexcept = default;
 
-  BasicStringLiteral& operator=(const BasicStringLiteral&) noexcept = default;
-  BasicStringLiteral& operator=(BasicStringLiteral&&) noexcept = default;
+  BasicEbsdStringLiteral& operator=(const BasicEbsdStringLiteral&) noexcept = default;
+  BasicEbsdStringLiteral& operator=(BasicEbsdStringLiteral&&) noexcept = default;
 
   /**
    * @brief Returns the c-string pointer.
@@ -133,86 +133,93 @@ class BasicStringLiteral
 };
 
 template <class T>
-bool operator==(const std::basic_string<T>& lhs, BasicStringLiteral<T> rhs)
+bool operator==(const std::basic_string<T>& lhs, BasicEbsdStringLiteral<T> rhs)
 {
   return lhs == rhs.view();
 }
 
 template <class T>
-bool operator==(BasicStringLiteral<T> lhs, const std::basic_string<T>& rhs)
+bool operator==(BasicEbsdStringLiteral<T> lhs, const std::basic_string<T>& rhs)
 {
   return rhs == lhs;
 }
 
 template <class T>
-bool operator!=(const std::basic_string<T>& lhs, BasicStringLiteral<T> rhs)
+bool operator!=(const std::basic_string<T>& lhs, BasicEbsdStringLiteral<T> rhs)
 {
   return lhs != rhs.view();
 }
 
 template <class T>
-bool operator!=(BasicStringLiteral<T> lhs, const std::basic_string<T>& rhs)
+bool operator!=(BasicEbsdStringLiteral<T> lhs, const std::basic_string<T>& rhs)
 {
   return rhs != lhs;
 }
 
 template <class T>
-bool operator<(const std::basic_string<T>& lhs, BasicStringLiteral<T> rhs)
+bool operator<(const std::basic_string<T>& lhs, BasicEbsdStringLiteral<T> rhs)
 {
   return lhs < rhs.view();
 }
 
 template <class T>
-bool operator<(BasicStringLiteral<T> lhs, const std::basic_string<T>& rhs)
+bool operator<(BasicEbsdStringLiteral<T> lhs, const std::basic_string<T>& rhs)
 {
   return lhs.view() < rhs;
 }
 
 template <class T>
-bool operator>(const std::basic_string<T>& lhs, BasicStringLiteral<T> rhs)
+bool operator>(const std::basic_string<T>& lhs, BasicEbsdStringLiteral<T> rhs)
 {
   return lhs > rhs.view();
 }
 
 template <class T>
-bool operator>(BasicStringLiteral<T> lhs, const std::basic_string<T>& rhs)
+bool operator>(BasicEbsdStringLiteral<T> lhs, const std::basic_string<T>& rhs)
 {
   return lhs.view() > rhs;
 }
 
 template <class T>
-bool operator<=(const std::basic_string<T>& lhs, BasicStringLiteral<T> rhs)
+bool operator<=(const std::basic_string<T>& lhs, BasicEbsdStringLiteral<T> rhs)
 {
   return lhs <= rhs.view();
 }
 
 template <class T>
-bool operator<=(BasicStringLiteral<T> lhs, const std::basic_string<T>& rhs)
+bool operator<=(BasicEbsdStringLiteral<T> lhs, const std::basic_string<T>& rhs)
 {
   return lhs.view() <= rhs;
 }
 
 template <class T>
-bool operator>=(const std::basic_string<T>& lhs, BasicStringLiteral<T> rhs)
+bool operator>=(const std::basic_string<T>& lhs, BasicEbsdStringLiteral<T> rhs)
 {
   return lhs >= rhs.view();
 }
 
 template <class T>
-bool operator>=(BasicStringLiteral<T> lhs, const std::basic_string<T>& rhs)
+bool operator>=(BasicEbsdStringLiteral<T> lhs, const std::basic_string<T>& rhs)
 {
   return lhs.view() >= rhs;
 }
 
-using StringLiteral = BasicStringLiteral<char>;
-using WStringLiteral = BasicStringLiteral<wchar_t>;
-using String16Literal = BasicStringLiteral<char16_t>;
-using String32Literal = BasicStringLiteral<char32_t>;
+template <class T>
+std::ostream& operator<<(std::ostream& os, const BasicEbsdStringLiteral<T>& lhs)
+{
+  os << lhs.view();
+  return os;
+}
+
+using EbsdStringLiteral = BasicEbsdStringLiteral<char>;
+using WEbsdStringLiteral = BasicEbsdStringLiteral<wchar_t>;
+using String16Literal = BasicEbsdStringLiteral<char16_t>;
+using String32Literal = BasicEbsdStringLiteral<char32_t>;
 } // namespace EbsdLib
 
 #if 0
 template <class CharT>
-struct fmt::formatter<nx::core::BasicStringLiteral<CharT>>
+struct fmt::formatter<nx::core::BasicEbsdStringLiteral<CharT>>
 {
   static constexpr const CharT* GetFormatString()
   {
@@ -239,7 +246,7 @@ struct fmt::formatter<nx::core::BasicStringLiteral<CharT>>
     return ctx.begin();
   }
 
-  typename buffer_context<CharT>::iterator format(const nx::core::BasicStringLiteral<CharT>& p, buffer_context<CharT>& ctx) const
+  typename buffer_context<CharT>::iterator format(const nx::core::BasicEbsdStringLiteral<CharT>& p, buffer_context<CharT>& ctx) const
   {
     static constexpr const CharT* formatStr = GetFormatString();
 

Source/EbsdLib/Core/SourceList.cmake

@@ -12,6 +12,7 @@ set(EbsdLib_${DIR_NAME}_HDRS
   ${EbsdLibProj_SOURCE_DIR}/Source/EbsdLib/${DIR_NAME}/OrientationRepresentation.h
   ${EbsdLibProj_SOURCE_DIR}/Source/EbsdLib/${DIR_NAME}/OrientationTransformation.hpp
   ${EbsdLibProj_SOURCE_DIR}/Source/EbsdLib/${DIR_NAME}/Quaternion.hpp
+    ${EbsdLibProj_SOURCE_DIR}/Source/EbsdLib/${DIR_NAME}/EbsdStringLiteral.hpp
 )
 
 set(EbsdLib_${DIR_NAME}_SRCS