build: clear 5 warning categories across 19 sites (#15628)

src/slic3r/GUI/DeviceCore/DevMapping.cpp

@@ -1,3 +1,5 @@
+#include <limits>
+
 #include <nlohmann/json.hpp>
 #include "DevMapping.h"
 #include "DevFilaSystem.h"
@@ -270,7 +272,7 @@ namespace Slic3r
         std::set<int> picked_tar;
         for (int k = 0; k < distance_map.size(); k++)
         {
-            float min_val = INT_MAX;
+            float min_val = std::numeric_limits<float>::max();
             int picked_src_idx = -1;
             int picked_tar_idx = -1;
             for (int i = 0; i < distance_map.size(); i++)

src/slic3r/GUI/MeshUtils.cpp

@@ -297,7 +297,7 @@ void MeshClipper::recalculate_triangles()
             // it so it lies on our line. This will be the figure to subtract
             // from the cut. The coordinates must not overflow after the transform,
             // make the rectangle a bit smaller.
-            const coord_t size = (std::numeric_limits<coord_t>::max()/2 - scale_(std::max(std::abs(e * a), std::abs(e * b)))) / 4;
+            const coord_t size = (double(std::numeric_limits<coord_t>::max()/2) - scale_(std::max(std::abs(e * a), std::abs(e * b)))) / 4;
             Polygons ep {Polygon({Point(-size, 0), Point(size, 0), Point(size, 2*size), Point(-size, 2*size)})};
             ep.front().rotate(angle);
             ep.front().translate(scale_(-e * a), scale_(-e * b));
@@ -352,7 +352,7 @@ void MeshClipper::recalculate_triangles()
 
             // To prevent overflow after scaling, downscale the input if needed:
             double extra_scale = 1.;
-            coord_t limit = coord_t(std::min(std::numeric_limits<coord_t>::max() / (2. * std::max(1., scale_x)), std::numeric_limits<coord_t>::max() / (2. * std::max(1., scale_y))));
+            coord_t limit = coord_t(std::min(double(std::numeric_limits<coord_t>::max()) / (2. * std::max(1., scale_x)), double(std::numeric_limits<coord_t>::max()) / (2. * std::max(1., scale_y))));
             coord_t max_coord = 0;
             for (const Point& pt : exp.contour)
                 max_coord = std::max(max_coord, std::max(std::abs(pt.x()), std::abs(pt.y())));

src/slic3r/GUI/Printer/PrinterFileSystem.cpp

@@ -1803,7 +1803,7 @@ static void* get_function(const char* name)
         return function;
 
 #if defined(_MSC_VER) || defined(_WIN32)
-    function = GetProcAddress(module, name);
+    function = reinterpret_cast<void*>(GetProcAddress(module, name));
 #else
     function = dlsym(module, name);
 #endif