Use std::array

examples/X11/X11.cpp

@@ -8,6 +8,7 @@
 #include <gl.h>
 
 #include <X11/Xlib.h>
+#include <array>
 #include <iostream>
 #include <cmath>
 #include <cstdlib>
@@ -93,7 +94,7 @@
     glRotatef(elapsedTime * 18.f, 0.f, 0.f, 1.f);
 
     // Define a 3D cube (6 faces made of 2 triangles composed by 3 vertices)
-    static const GLfloat cube[] =
+    constexpr std::array<GLfloat, 216> cube =
     {
         // positions    // colors
         -50, -50, -50,  1, 1, 0,
@@ -140,8 +141,8 @@
     };
 
     // Draw the cube
-    glVertexPointer(3, GL_FLOAT, 6 * sizeof(GLfloat), cube);
+    glVertexPointer(3, GL_FLOAT, 6 * sizeof(GLfloat), cube.data());
-    glColorPointer(3, GL_FLOAT, 6 * sizeof(GLfloat), cube + 3);
+    glColorPointer(3, GL_FLOAT, 6 * sizeof(GLfloat), cube.data() + 3);
     glDrawArrays(GL_TRIANGLES, 0, 36);
 
     return true;

examples/island/Island.cpp

@@ -8,6 +8,7 @@
 #include <SFML/Graphics.hpp>
 
 #include <algorithm>
+#include <array>
 #include <deque>
 #include <iostream>
 #include <mutex>
@@ -161,8 +162,8 @@ int main()
     statusText.setPosition({(windowWidth - statusText.getLocalBounds().width) / 2.f, (windowHeight - statusText.getLocalBounds().height) / 2.f});
 
     // Set up an array of pointers to our settings for arrow navigation
-    Setting settings[] =
+    constexpr std::array<Setting, 9> settings =
-    {
+    {{
         {"perlinFrequency",     &perlinFrequency},
         {"perlinFrequencyBase", &perlinFrequencyBase},
         {"heightBase",          &heightBase},
@@ -172,10 +173,9 @@ int main()
         {"heightFactor",        &heightFactor},
         {"heightFlatten",       &heightFlatten},
         {"lightFactor",         &lightFactor}
-    };
+    }};
 
-    const int settingCount = 9;
+    std::size_t currentSetting = 0;
-    int currentSetting = 0;
 
     std::ostringstream osstr;
     sf::Clock clock;
@@ -199,8 +199,8 @@ int main()
                 switch (event.key.code)
                 {
                     case sf::Keyboard::Enter: generateTerrain(terrainStagingBuffer.data()); break;
-                    case sf::Keyboard::Down:  currentSetting = (currentSetting + 1) % settingCount; break;
+                    case sf::Keyboard::Down:  currentSetting = (currentSetting + 1) % settings.size(); break;
-                    case sf::Keyboard::Up:    currentSetting = (currentSetting + settingCount - 1) % settingCount; break;
+                    case sf::Keyboard::Up:    currentSetting = (currentSetting + settings.size() - 1) % settings.size(); break;
                     case sf::Keyboard::Left:  *(settings[currentSetting].value) -= 0.1f; break;
                     case sf::Keyboard::Right: *(settings[currentSetting].value) += 0.1f; break;
                     default: break;
@@ -244,7 +244,7 @@ int main()
                   << "perlinOctaves:  " << perlinOctaves << "\n\n"
                   << "Use the arrow keys to change the values.\nUse the return key to regenerate the terrain.\n\n";
 
-            for (int i = 0; i < settingCount; ++i)
+            for (std::size_t i = 0; i < settings.size(); ++i)
                 osstr << ((i == currentSetting) ? ">>  " : "       ") << settings[i].name << ":  " << *(settings[i].value) << '\n';
 
             hudText.setString(osstr.str());

examples/joystick/Joystick.cpp

@@ -4,6 +4,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Graphics.hpp>
 #include <algorithm>
+#include <array>
 #include <sstream>
 #include <string>
 #include <unordered_map>
@@ -23,7 +24,7 @@ namespace
     float threshold = 0.1f;
 
     // Axes labels in as C strings
-    const char* axislabels[] = {"X", "Y", "Z", "R", "U", "V", "PovX", "PovY"};
+    constexpr std::array axislabels = {"X", "Y", "Z", "R", "U", "V", "PovX", "PovY"};
 
     // Helper to set text entries to a specified value
     template<typename T>

examples/opengl/OpenGL.cpp

@@ -3,6 +3,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Graphics.hpp>
+#include <array>
 #include <iostream>
 #include <cstdlib>
 
@@ -124,7 +125,7 @@ int main()
         sf::Texture::bind(&texture);
 
         // Define a 3D cube (6 faces made of 2 triangles composed by 3 vertices)
-        static const GLfloat cube[] =
+        constexpr std::array<GLfloat, 180> cube =
         {
             // positions    // texture coordinates
             -20, -20, -20,  0, 0,
@@ -173,8 +174,8 @@ int main()
         // Enable position and texture coordinates vertex components
         glEnableClientState(GL_VERTEX_ARRAY);
         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-        glVertexPointer(3, GL_FLOAT, 5 * sizeof(GLfloat), cube);
+        glVertexPointer(3, GL_FLOAT, 5 * sizeof(GLfloat), cube.data());
-        glTexCoordPointer(2, GL_FLOAT, 5 * sizeof(GLfloat), cube + 3);
+        glTexCoordPointer(2, GL_FLOAT, 5 * sizeof(GLfloat), cube.data() + 3);
 
         // Disable normal and color vertex components
         glDisableClientState(GL_NORMAL_ARRAY);

examples/vulkan/Vulkan.cpp

@@ -9,6 +9,7 @@
 #include <SFML/Graphics.hpp>
 
 #include <SFML/Window.hpp>
+#include <array>
 #include <iostream>
 #include <limits>
 #include <vector>
@@ -1370,7 +1371,7 @@ public:
     // Create our vertex buffer and upload its data
     void setupVertexBuffer()
     {
-        float vertexData[] = {
+        constexpr std::array vertexData = {
             // X      Y      Z     R     G     B     A     U     V
             -0.5f, -0.5f,  0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f,
              0.5f, -0.5f,  0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
@@ -1432,7 +1433,7 @@ public:
         }
 
         // Copy the vertex data into the buffer
-        std::memcpy(ptr, vertexData, sizeof(vertexData));
+        std::memcpy(ptr, vertexData.data(), sizeof(vertexData));
 
         // Unmap the buffer
         vkUnmapMemory(device, stagingBufferMemory);
@@ -1464,7 +1465,7 @@ public:
     // Create our index buffer and upload its data
     void setupIndexBuffer()
     {
-        uint16_t indexData[] = {
+        constexpr std::array<std::uint16_t, 36> indexData = {
             0,  1,  2,
             2,  3,  0,
 
@@ -1513,7 +1514,7 @@ public:
         }
 
         // Copy the index data into the buffer
-        std::memcpy(ptr, indexData, sizeof(indexData));
+        std::memcpy(ptr, indexData.data(), sizeof(indexData));
 
         // Unmap the buffer
         vkUnmapMemory(device, stagingBufferMemory);

examples/window/Window.cpp

@@ -11,6 +11,7 @@
 #include <SFML/Main.hpp>
 #endif
 
+#include <array>
 #include <iostream>
 #include <cstdlib>
 
@@ -73,7 +74,7 @@ int main()
 #endif
 
     // Define a 3D cube (6 faces made of 2 triangles composed by 3 vertices)
-    GLfloat cube[] =
+    constexpr std::array<GLfloat, 252> cube =
     {
         // positions    // colors (r, g, b, a)
         -50, -50, -50,  0, 0, 1, 1,
@@ -122,8 +123,8 @@ int main()
     // Enable position and color vertex components
     glEnableClientState(GL_VERTEX_ARRAY);
     glEnableClientState(GL_COLOR_ARRAY);
-    glVertexPointer(3, GL_FLOAT, 7 * sizeof(GLfloat), cube);
+    glVertexPointer(3, GL_FLOAT, 7 * sizeof(GLfloat), cube.data());
-    glColorPointer(4, GL_FLOAT, 7 * sizeof(GLfloat), cube + 3);
+    glColorPointer(4, GL_FLOAT, 7 * sizeof(GLfloat), cube.data() + 3);
 
     // Disable normal and texture coordinates vertex components
     glDisableClientState(GL_NORMAL_ARRAY);