Make rlGetProcAddress return ?*const anyopaque (#312)

lib/generate_functions.py

@@ -247,6 +247,9 @@ def fix_pointer(name: str, t: str):
         t = "*anyopaque"
     elif len(pre) == 0:
         t = t.replace("const ", "")
+
+    if name == "rlGetProcAddress":
+        t = "?*const anyopaque"
     return name, t
 
 

lib/rlgl-ext.zig

@@ -87,7 +87,7 @@ pub extern "c" fn rlSetBlendFactorsSeparate(glSrcRGB: c_int, glDstRGB: c_int, gl
 pub extern "c" fn rlglInit(width: c_int, height: c_int) void;
 pub extern "c" fn rlglClose() void;
 pub extern "c" fn rlLoadExtensions(loader: *anyopaque) void;
-pub extern "c" fn rlGetProcAddress(procName: [*c]const u8) *anyopaque;
+pub extern "c" fn rlGetProcAddress(procName: [*c]const u8) ?*const anyopaque;
 pub extern "c" fn rlGetVersion() c_int;
 pub extern "c" fn rlSetFramebufferWidth(width: c_int) void;
 pub extern "c" fn rlGetFramebufferWidth() c_int;

lib/rlgl.zig

@@ -692,7 +692,7 @@ pub fn rlLoadExtensions(loader: *anyopaque) void {
 }
 
 /// Get OpenGL procedure address
-pub fn rlGetProcAddress(procName: [:0]const u8) *anyopaque {
+pub fn rlGetProcAddress(procName: [:0]const u8) ?*const anyopaque {
     return cdef.rlGetProcAddress(@as([*c]const u8, @ptrCast(procName)));
 }