Fixed a bunch of warnings in visual studio 2015.

dlib/algs.h

@@ -43,6 +43,9 @@
 // This warning happens often in generic code that works with functions and isn't useful.
 #pragma warning(disable : 4180)
 
+// Disable "warning C4290: C++ exception specification ignored except to indicate a function is not __declspec(nothrow)"
+#pragma warning(disable : 4290)
+
 #endif
 
 #ifdef __BORLANDC__

dlib/general_hash/random_hashing.h

@@ -35,7 +35,7 @@ namespace dlib
 
         const static unsigned int max = 4096;
 
-        const static float logvals[max] = { 
+        const static double logvals[max] = { 
         4.079, 3.905, 3.8, 3.723, 3.663, 3.613, 3.57, 3.532, 3.499, 3.468, 
         3.441, 3.416, 3.392, 3.37, 3.35, 3.33, 3.312, 3.295, 3.278, 3.263, 
         3.248, 3.233, 3.219, 3.206, 3.193, 3.181, 3.169, 3.158, 3.147, 3.136, 
@@ -447,7 +447,7 @@ namespace dlib
         0.08566, 0.08275, 0.07974, 0.0766, 0.07334, 0.06992, 0.06633, 0.06253, 0.05849, 0.05415, 
         0.04943, 0.0442, 0.03828, 0.03125, 0.0221, -0};
 
-        const static float cosvals[max] = { 
+        const static double cosvals[max] = { 
         1, 1, 1, 1, 1, 1, 0.9999, 0.9999, 0.9999, 0.9999, 
         0.9999, 0.9998, 0.9998, 0.9998, 0.9997, 0.9997, 0.9997, 0.9996, 0.9996, 0.9995, 
         0.9995, 0.9994, 0.9994, 0.9993, 0.9993, 0.9992, 0.9991, 0.9991, 0.999, 0.9989, 

dlib/gui_widgets/drawable.cpp

@@ -6,6 +6,7 @@
 #include "drawable.h"
 
 #include <algorithm>
+#include <iostream>
 
 namespace dlib
 {
@@ -518,11 +519,20 @@ namespace dlib
     ~drawable (
     )
     {
-        DLIB_ASSERT(events_are_enabled() == false,
-            "\tdrawable::~drawable()"
-            << "\n\tYou must disable events for drawable objects in their destructor by calling disable_events()."
-            << "\n\tthis:     " << this
-            );
+        try
+        {
+            DLIB_ASSERT(events_are_enabled() == false,
+                "\tdrawable::~drawable()"
+                << "\n\tYou must disable events for drawable objects in their destructor by calling disable_events()."
+                << "\n\tthis:     " << this
+                );
+        }
+        catch (std::exception& e)
+        {
+            std::cerr << e.what() << std::endl;
+            assert(false);
+            abort();
+        }
         disable_events();
     }
 

dlib/matrix/matrix.h

@@ -1605,7 +1605,7 @@ namespace dlib
 
             literal_assign_helper(const literal_assign_helper& item) : m(item.m), r(item.r), c(item.c), has_been_used(false) {}
             explicit literal_assign_helper(matrix* m_): m(m_), r(0), c(0),has_been_used(false) {next();}
-            ~literal_assign_helper()
+            ~literal_assign_helper() throw (std::exception)
             {
                 DLIB_CASSERT(!has_been_used || r == m->nr(),
                              "You have used the matrix comma based assignment incorrectly by failing to\n"

dlib/threads/multithreaded_object_extension.cpp

@@ -28,11 +28,20 @@ namespace dlib
     ~multithreaded_object (
     )
     {
-        DLIB_ASSERT(number_of_threads_alive() == 0,
-               "\tmultithreaded_object::~multithreaded_object()"
-               << "\n\tYou have let a multithreaded object destruct itself before terminating its threads"
-               << "\n\tthis: " << this
-        );
+        try
+        {
+            DLIB_ASSERT(number_of_threads_alive() == 0,
+                   "\tmultithreaded_object::~multithreaded_object()"
+                   << "\n\tYou have let a multithreaded object destruct itself before terminating its threads"
+                   << "\n\tthis: " << this
+            );
+        }
+        catch (std::exception& e)
+        {
+            std::cerr << e.what() << std::endl;
+            assert(false);
+            abort();
+        }
     }
 
 // ----------------------------------------------------------------------------------------

dlib/threads/threaded_object_extension.cpp

@@ -29,11 +29,20 @@ namespace dlib
     ~threaded_object (
     )
     {
-        DLIB_ASSERT(is_alive() == false,
-               "\tthreaded_object::~threaded_object()"
-               << "\n\tYou have let a threaded object destruct itself before terminating its thread"
-               << "\n\tthis: " << this
-        );
+        try
+        {
+            DLIB_ASSERT(is_alive() == false,
+                   "\tthreaded_object::~threaded_object()"
+                   << "\n\tYou have let a threaded object destruct itself before terminating its thread"
+                   << "\n\tthis: " << this
+            );
+        }
+        catch (std::exception& e)
+        {
+            std::cerr << e.what() << std::endl;
+            assert(false);
+            abort();
+        }
     }
 
 // ----------------------------------------------------------------------------------------