Merge pull request matplotlib#19330 from QuLogic/remove-register

Remove register storage class from Agg files.

Author: WeatherGod

extern/agg24-svn/include/agg_basics.h

@@ -228,7 +228,7 @@ namespace agg
     {
         AGG_INLINE static unsigned mul(unsigned a, unsigned b)
         {
-            register unsigned q = a * b + (1 << (Shift-1));
+            unsigned q = a * b + (1 << (Shift-1));
             return (q + (q >> Shift)) >> Shift;
         }
     };

extern/agg24-svn/include/agg_image_accessors.h

@@ -174,8 +174,8 @@ namespace agg
     private:
         AGG_INLINE const int8u* pixel() const
         {
-            register int x = m_x;
-            register int y = m_y;
+            int x = m_x;
+            int y = m_y;
             if(x < 0) x = 0;
             if(y < 0) y = 0;
             if(x >= (int)m_pixf->width())  x = m_pixf->width() - 1;

extern/agg24-svn/include/agg_trans_affine.h

@@ -292,25 +292,25 @@ namespace agg
     //------------------------------------------------------------------------
     inline void trans_affine::transform(double* x, double* y) const
     {
-        register double tmp = *x;
+        double tmp = *x;
         *x = tmp * sx  + *y * shx + tx;
         *y = tmp * shy + *y * sy  + ty;
     }
 
     //------------------------------------------------------------------------
     inline void trans_affine::transform_2x2(double* x, double* y) const
     {
-        register double tmp = *x;
+        double tmp = *x;
         *x = tmp * sx  + *y * shx;
         *y = tmp * shy + *y * sy;
     }
 
     //------------------------------------------------------------------------
     inline void trans_affine::inverse_transform(double* x, double* y) const
     {
-        register double d = determinant_reciprocal();
-        register double a = (*x - tx) * d;
-        register double b = (*y - ty) * d;
+        double d = determinant_reciprocal();
+        double a = (*x - tx) * d;
+        double b = (*y - ty) * d;
         *x = a * sy - b * shx;
         *y = b * sx - a * shy;
     }

extern/agg24-svn/src/platform/win32/agg_platform_support.cpp

@@ -1480,7 +1480,7 @@ namespace agg
         tok.len = 0;
         if(m_src_string == 0 || m_start == -1) return tok;
 
-        register const char *pstr = m_src_string + m_start;
+        const char *pstr = m_src_string + m_start;
 
         if(*pstr == 0) 
         {