Core: Modernize C headers with C++ equivalents

platform/web/godot_audio.h

@@ -30,13 +30,12 @@
 
 #pragma once
 
+#include <cstdint>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <stddef.h>
-#include <stdint.h>
-
 extern int godot_audio_is_available();
 extern int godot_audio_has_worklet();
 extern int godot_audio_has_script_processor();

platform/web/godot_js.h

@@ -32,13 +32,12 @@
 
 #define WASM_EXPORT __attribute__((visibility("default")))
 
+#include <cstdint>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <stddef.h>
-#include <stdint.h>
-
 // Config
 extern void godot_js_config_locale_get(char *p_ptr, int p_ptr_max);
 extern void godot_js_config_canvas_id_get(char *p_ptr, int p_ptr_max);

platform/web/godot_midi.h

@@ -30,11 +30,12 @@
 
 #pragma once
 
+#include <cstdint>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <stdint.h>
 extern int godot_js_webmidi_open_midi_inputs(
 		void (*p_callback)(int p_size, const char **p_connected_input_names),
 		void (*p_on_midi_message)(int p_device_index, int p_status, const uint8_t *p_data, int p_data_len),

platform/web/http_client_web.h

@@ -36,8 +36,6 @@
 extern "C" {
 #endif
 
-#include <stddef.h>
-
 typedef enum {
 	GODOT_JS_FETCH_STATE_REQUESTING = 0,
 	GODOT_JS_FETCH_STATE_BODY = 1,

platform/web/os_web.cpp

@@ -46,7 +46,7 @@
 
 #include <dlfcn.h>
 #include <emscripten.h>
-#include <stdlib.h>
+#include <cstdlib>
 
 void OS_Web::alert(const String &p_alert, const String &p_title) {
 	godot_js_display_alert(p_alert.utf8().get_data());

platform/web/web_main.cpp

@@ -43,7 +43,7 @@
 #endif
 
 #include <emscripten/emscripten.h>
-#include <stdlib.h>
+#include <cstdlib>
 
 static OS_Web *os = nullptr;
 #ifndef PROXY_TO_PTHREAD_ENABLED