More modern memory management in the modern pstarmap file.

sc2/src/uqm/planets/pstarmap-modern.cpp

@@ -18,6 +18,7 @@
  */
 
 #include <vector>
+#include <memory>
 
 #include "../starmap.h"
 #include "../menustat.h"
@@ -28,22 +29,14 @@
 
 extern "C" bool
 DoStarSearch (MENU_STATE *pMS)
+try
 {
 	TEXTENTRY_STATE tes;
-	STAR_SEARCH_STATE *pss;
 	bool success;
 
-	pss = (STAR_SEARCH_STATE *) HMalloc (sizeof (*pss));
-	if (!pss)
-		return FALSE;
-
+	auto pss= std::make_unique< STAR_SEARCH_STATE >();
 	std::vector< int > sorted( GetStarCount() ); // Manages the sorted stars memory.
 	pss->SortedStars= sorted.data();
-	if (!pss->SortedStars)
-	{
-		HFree (pss);
-		return FALSE;
-	}
 
 	DrawSISMessageEx ("", 0, 0, DSME_SETFR);
 
@@ -52,14 +45,14 @@ DoStarSearch (MENU_STATE *pMS)
 	pss->Text[0] = '\0';
 	pss->LastText[0] = '\0';
 	pss->FirstIndex = -1;
-	SortStarsOnName (pss);
+	SortStarsOnName (pss.get());
 
 	// text entry setup
 	tes.Initialized = FALSE;
 	tes.BaseStr = pss->Text;
 	tes.MaxSize = sizeof (pss->Text);
 	tes.CursorPos = 0;
-	tes.CbParam = pss;
+	tes.CbParam = pss.get();
 	tes.ChangeCallback = OnStarNameChange;
 	tes.FrameCallback = OnStarNameFrame;
 
@@ -69,7 +62,9 @@ DoStarSearch (MENU_STATE *pMS)
 
 	DrawSISMessageEx (pss->Text, -1, -1, DSME_CLEARFR);
 
-	HFree (pss);
-
 	return success;
 }
+catch( const std::bad_alloc & )
+{
+	return FALSE;
+}