works for some reason but cpp weirdness happening

.vscode/settings.json

@@ -1,6 +1,9 @@
 {
     "files.associations": {
         "memory": "cpp",
-        "unistd.h": "c"
+        "unistd.h": "c",
+        "new": "cpp",
+        "string": "cpp",
+        "cstdlib": "cpp"
     }
 }

src/arm9/loader.cpp

@@ -25,8 +25,10 @@ namespace Loader
     void loadExampleLib()
     {
         exampleLib = dlopen("nitro:/dsl/example.dsl", RTLD_NOW | RTLD_LOCAL);
+        printf("Example lib loaded to %x\n", (u32)exampleLib);
 
-        isFlagSetFn = (fnIsFlagSet *)dlsym(exampleLib, "isFlagSet");
+        isFlagSetFn = (fnIsFlagSet *)dlsym(exampleLib, "isFlagSet(Save*, unsi");
+        printf("isFlagSet loaded to %x\n", (u32)isFlagSetFn);
         setFlagFn = (fnSetFlag *)dlsym(exampleLib, "setFlag");
         clearFlagFn = (fnClearFlag *)dlsym(exampleLib, "clearFlag");
         getGlobalFn = (fnGetGlobal *)dlsym(exampleLib, "getGlobal");

src/arm9/main.cpp

@@ -24,6 +24,7 @@ int main()
 
     consoleSelect(&topScreen);
 
+
     bool init_ok = nitroFSInit(NULL);
     if (!init_ok)
     {
@@ -41,20 +42,24 @@ int main()
     printf("Creating save file...\n");
     save = new Save();
 
-    printf("Loading example library...");
+    // use necessary functions here so we can include them in dynlibs
+    save->getSaveSlot();
+    mallinfo();
+
+    printf("Loading example library...\n");
     Loader::loadExampleLib();
 
     SaveExtensions::setFlag(save, 5);
     if (SaveExtensions::isFlagSet(save, 5))
     {
-        printf("Flag 5 was set.");
+        printf("Flag 5 was set.\n");
     }
     SaveExtensions::setGlobal(save, 5, 20);
-    printf("Global 5 was set to %d", SaveExtensions::getGlobal(save, 5));
+    printf("Global 5 was set to %d\n", SaveExtensions::getGlobal(save, 5));
 
-    printf("Mem used: %d\nMem free: %d", Debug::getMemUsed(), Debug::getMemFree());
+    printf("Mem used: %d\nMem free: %d\n", Debug::getMemUsed(), Debug::getMemFree());
 
-    printf("Unloading example lib...");
+    printf("Unloading example lib...\n");
     Loader::unloadExmapleLib();
 
     printf("Press START to exit to loader\n");

src/arm9/main.hpp

@@ -9,6 +9,7 @@
 #include <iostream>
 #include <regex>
 
+#include <malloc.h>
 #include <fat.h>
 #include <filesystem.h>
 #include <nds.h>
@@ -19,6 +20,4 @@
 
 Save *save;
 
-int main();
-void update();
-void render();
+int main();