Replace RGBLINK non-null pointers with references

include/link/object.hpp

@@ -12,11 +12,6 @@
  */
 void obj_ReadFile(char const *fileName, unsigned int i);
 
-/*
- * Perform validation on the object files' contents
- */
-void obj_DoSanityChecks();
-
 /*
  * Evaluate all assertions
  */

include/link/output.hpp

@@ -12,14 +12,14 @@
  * Registers a section for output.
  * @param section The section to add
  */
-void out_AddSection(Section const *section);
+void out_AddSection(Section const &section);
 
 /*
  * Finds an assigned section overlapping another one.
  * @param section The section that is being overlapped
  * @return A section overlapping it
  */
-Section const *out_OverlappingSection(Section const *section);
+Section const *out_OverlappingSection(Section const &section);
 
 /*
  * Writes all output (bin, sym, map) files.

include/link/sdas_obj.hpp

@@ -10,6 +10,6 @@
 struct FileStackNode;
 struct Symbol;
 
-void sdobj_ReadFile(FileStackNode const *fileName, FILE *file, std::vector<Symbol> &fileSymbols);
+void sdobj_ReadFile(FileStackNode const &where, FILE *file, std::vector<Symbol> &fileSymbols);
 
 #endif // RGBDS_LINK_SDAS_OBJ_H

include/link/section.hpp

@@ -58,13 +58,13 @@ struct Section {
  * This is to avoid exposing the data structure in which sections are stored.
  * @param callback The function to call for each structure.
  */
-void sect_ForEach(void (*callback)(Section *));
+void sect_ForEach(void (*callback)(Section &));
 
 /*
  * Registers a section to be processed.
  * @param section The section to register.
  */
-void sect_AddSection(Section *section);
+void sect_AddSection(Section &section);
 
 /*
  * Finds a section by its name.

include/link/symbol.hpp

@@ -31,7 +31,7 @@ struct Symbol {
 	Section *section;
 };
 
-void sym_AddSymbol(Symbol *symbol);
+void sym_AddSymbol(Symbol &symbol);
 
 /*
  * Finds a symbol in all the defined symbols.