add void to main args to placate clang in CI/CD tests

Author: capnramses

00_hello_triangle/main.c

@@ -17,7 +17,7 @@
 #include <GLFW/glfw3.h> /* GLFW helper library */
 #include <stdio.h>
 
-int main() {
+int main( void ) {
   GLFWwindow* window = NULL;
   const GLubyte* renderer;
   const GLubyte* version;
@@ -32,17 +32,17 @@ int main() {
   const char* vertex_shader =
     "#version 410\n"
     "in vec3 vp;"
-    "void main () {"
-    "  gl_Position = vec4(vp, 1.0);"
+    "void main() {"
+    "  gl_Position = vec4( vp, 1.0 );"
     "}";
 
   /* the fragment shader colours each fragment (pixel-sized area of the
   triangle) */
   const char* fragment_shader =
     "#version 410\n"
     "out vec4 frag_colour;"
-    "void main () {"
-    "  frag_colour = vec4(0.5, 0.0, 0.5, 1.0);"
+    "void main() {"
+    "  frag_colour = vec4( 0.5, 0.0, 0.5, 1.0 );"
     "}";
 
   /* GL shader objects for vertex and fragment shader [components] */

00_hello_triangle_gl2.1/main.c

@@ -16,7 +16,7 @@
 #include <GLFW/glfw3.h> /* GLFW helper library */
 #include <stdio.h>
 
-int main() {
+int main( void ) {
   GLFWwindow* window = NULL;
   const GLubyte* renderer;
   const GLubyte* version;
@@ -31,15 +31,15 @@ int main() {
   const char* vertex_shader =
     "#version 120\n"
     "attribute vec3 vp;"
-    "void main () {"
-    "  gl_Position = vec4 (vp, 1.0);"
+    "void main() {"
+    "  gl_Position = vec4( vp, 1.0 );"
     "}";
   /* the fragment shader colours each fragment (pixel-sized area of the
   triangle) */
   const char* fragment_shader =
     "#version 120\n"
-    "void main () {"
-    "  gl_FragColor = vec4 (0.5, 0.0, 0.5, 1.0);"
+    "void main() {"
+    "  gl_FragColor = vec4( 0.5, 0.0, 0.5, 1.0 );"
     "}";
   /* GL shader objects for vertex and fragment shader [components] */
   GLuint vs, fs;

01_extended_init/main.c

@@ -159,7 +159,7 @@ void _update_fps_counter( GLFWwindow* window ) {
   frame_count++;
 }
 
-int main() {
+int main( void ) {
   GLFWwindow* window;
   const GLubyte* renderer;
   const GLubyte* version;

02_shaders/main.c

@@ -167,7 +167,7 @@ bool parse_file_into_str( const char* file_name, char* shader_str, int max_len )
   return true;
 }
 
-int main() {
+int main( void ) {
   GLfloat points[] = { 0.0f, 0.5f, 0.0f, 0.5f, -0.5f, 0.0f, -0.5f, -0.5f, 0.0f };
   GLuint vbo;
   GLuint vao;

03_vertex_buffer_objects/main.cpp

@@ -24,7 +24,7 @@ int g_gl_width       = 640;
 int g_gl_height      = 480;
 GLFWwindow* g_window = NULL;
 
-int main() {
+int main( void ) {
   restart_gl_log();
   // all the start-up code for GLFW and GLEW is called here
   start_gl();

04_mats_and_vecs/main.cpp

@@ -27,7 +27,7 @@ int g_gl_width       = 640;
 int g_gl_height      = 480;
 GLFWwindow* g_window = NULL;
 
-int main() {
+int main( void ) {
   restart_gl_log();
   // all the GLFW and GLEW start-up code is moved to here in gl_utils.cpp
   start_gl();

05_virtual_camera/main.cpp

@@ -28,7 +28,7 @@ int g_gl_width       = 640;
 int g_gl_height      = 480;
 GLFWwindow* g_window = NULL;
 
-int main() {
+int main( void ) {
   restart_gl_log();
   /*------------------------------start GL context------------------------------*/
   start_gl();

06_vcam_with_quaternion/main.cpp

@@ -104,7 +104,7 @@ vec3 cam_pos( 0.0f, 0.0f, 5.0f );
 // a world position for each sphere in the scene
 vec3 sphere_pos_wor[] = { vec3( -2.0, 0.0, 0.0 ), vec3( 2.0, 0.0, 0.0 ), vec3( -2.0, 0.0, -2.0 ), vec3( 1.5, 1.0, -1.0 ) };
 
-int main() {
+int main( void ) {
   /*--------------------------------START OPENGL--------------------------------*/
   restart_gl_log();
   // start GL context and O/S window using the GLFW helper library

07_ray_picking/main.cpp

@@ -125,7 +125,7 @@ void update_perspective() {
   proj_mat     = perspective( fovy, aspect, near, far );
 }
 
-int main() {
+int main( void ) {
   /*--------------------------------START OPENGL--------------------------------*/
   restart_gl_log();
   // start GL context and O/S window using the GLFW helper library

08_phong/main.cpp

@@ -28,7 +28,7 @@ int g_gl_width       = 640;
 int g_gl_height      = 480;
 GLFWwindow* g_window = NULL;
 
-int main() {
+int main( void ) {
   restart_gl_log();
   // start GL context and O/S window using the GLFW helper library
   start_gl();