Fix C/C++ errors generated by CLion IDE

src/text.c

@@ -1479,17 +1479,17 @@ u32 GetStringWidthFixedWidthFont(const u8 *str, u8 fontId, u8 letterSpacing)
     return (u8)(GetFontAttribute(fontId, 0) + letterSpacing) * width;
 }
 
-u32 (*GetFontWidthFunc(u8 glyphId))(u16, bool32)
+u32 (*GetFontWidthFunc(u8 glyphId))(u16 _glyphId, bool32 _isJapanese)
 {
     u32 i;
 
     for (i = 0; i < 7; ++i)
     {
         if (glyphId == gGlyphWidthFuncs[i].font_id)
-            return gGlyphWidthFuncs[i].func;
+            return *gGlyphWidthFuncs[i].func;
     }
 
-    return 0;
+    return NULL;
 }
 
 u32 GetStringWidth(u8 fontId, const u8 *str, s16 letterSpacing)