Loop / goodie combo.

src/TrailUtil.cpp

@@ -5,7 +5,7 @@
 #include "XmlFile.h"
 #include "GameManager.h"
 #include "Song.h"
-
+#include <numeric>
 
 int TrailUtil::GetNumSongs( const Trail *pTrail )
 {
@@ -14,10 +14,15 @@ int TrailUtil::GetNumSongs( const Trail *pTrail )
 
 float TrailUtil::GetTotalSeconds( const Trail *pTrail )
 {
+#ifdef MACOSX
 	float fSecs = 0;
-	FOREACH_CONST( TrailEntry, pTrail->m_vEntries, e )
-		fSecs += e->pSong->m_fMusicLengthSeconds;
+	for (TrailEntry const &e : pTrail->m_vEntries)
+		fSecs += e.pSong->m_fMusicLengthSeconds;
 	return fSecs;
+#else
+	auto const &entries = pTrail->m_vEntries;
+	return std::accumulate(entries.begin(), entries.end(), 0.f, [](float total, TrailEntry const &e) { return total += e.pSong->m_fMusicLengthSeconds; });
+#endif
 }
 
 ///////////////////////////////////////////////////////////////////////