Updated to use thread_local instead of old thread_specific_data class.

dlib/stack_trace.cpp

@@ -8,7 +8,6 @@
 #include <sstream>
 #include <cstring>
 #include "stack_trace.h"
-#include "threads.h"
 #include "stack.h"
 #include "memory_manager.h"
 
@@ -31,9 +30,11 @@ namespace dlib
             int line_number;
         };
 
-        thread_specific_data<stack<stack_tracer_data,memory_manager<char>::kernel_2a>::kernel_1a>& get_dlib_stack_trace_stack()
+        using stack_tracer_stack_type = stack<stack_tracer_data,memory_manager<char>::kernel_2a>::kernel_1a;
+
+        stack_tracer_stack_type& get_dlib_stack_trace_stack()
         {
-            static thread_specific_data<stack<stack_tracer_data,memory_manager<char>::kernel_2a>::kernel_1a> a;
+            thread_local stack_tracer_stack_type a;
             return a;
         }
     }
@@ -53,7 +54,7 @@ namespace dlib
         data.line_number = line_number;
 
         // pop the info onto the function stack trace
-        get_dlib_stack_trace_stack().data().push(data);
+        get_dlib_stack_trace_stack().push(data);
     }
 
 // ----------------------------------------------------------------------------------------
@@ -62,7 +63,7 @@ namespace dlib
     ~stack_tracer()
     {
         stack_tracer_data temp;
-        get_dlib_stack_trace_stack().data().pop(temp);
+        get_dlib_stack_trace_stack().pop(temp);
     }
 
 // ----------------------------------------------------------------------------------------
@@ -70,10 +71,11 @@ namespace dlib
     const std::string get_stack_trace()
     {
         std::ostringstream sout;
-        get_dlib_stack_trace_stack().data().reset();
-        while (get_dlib_stack_trace_stack().data().move_next())
+        auto& stack = get_dlib_stack_trace_stack();
+        stack.reset();
+        while (stack.move_next())
         {
-            stack_tracer_data data = get_dlib_stack_trace_stack().data().element();
+            stack_tracer_data data = stack.element();
             sout << data.file_name << ":" << data.line_number << "\n    " << data.funct_name << "\n";
         }
         return sout.str();