fixed from PVS-Studio:

V668 There is no sense in testing the pointer against null, as the memory was allocated using the 'new' operator. The exception will be generated in the case of memory allocation error. load_ams.cpp

third_party/libmodplug/src/load_ams.cpp

@@ -104,8 +104,13 @@ BOOL CSoundFile::ReadAMS(LPCBYTE lpStream, DWORD dwMemLength)
 		dwMemPos += tmp;
 	}
 	// Read Pattern Names
-	m_lpszPatternNames = new char[pfh->patterns * 32];  // changed from CHAR
-	if (!m_lpszPatternNames) return TRUE;
+	try {
+		m_lpszPatternNames = new char[pfh->patterns * 32];  // changed from CHAR
+	} 
+	catch (std::bad_alloc& ba) {
+		return TRUE;
+	}
+
 	m_nPatternNames = pfh->patterns;
 	memset(m_lpszPatternNames, 0, m_nPatternNames * 32);
 	for (UINT pNam=0; pNam < m_nPatternNames; pNam++)
@@ -122,8 +127,13 @@ BOOL CSoundFile::ReadAMS(LPCBYTE lpStream, DWORD dwMemLength)
 	if (dwMemPos + tmp >= dwMemLength) return TRUE;
 	if (tmp)
 	{
-		m_lpszSongComments = new char[tmp+1];  // changed from CHAR
-		if (!m_lpszSongComments) return TRUE;
+		try {
+			m_lpszSongComments = new char[tmp + 1];  // changed from CHAR
+		}
+		catch (std::bad_alloc& ba) {
+			return TRUE;
+		}
+
 		memset(m_lpszSongComments, 0, tmp+1);
 		memcpy(m_lpszSongComments, lpStream + dwMemPos, tmp);
 		dwMemPos += tmp;
@@ -350,8 +360,14 @@ BOOL CSoundFile::ReadAMS2(LPCBYTE lpStream, DWORD dwMemLength)
 		dwMemPos += 5 + panenv->points*3;
 		pitchenv = (AMS2ENVELOPE *)(lpStream+dwMemPos);
 		dwMemPos += 5 + pitchenv->points*3;
-		INSTRUMENTHEADER *penv = new INSTRUMENTHEADER;
-		if (!penv) return TRUE;
+
+		INSTRUMENTHEADER *penv;
+		try {
+			penv = new INSTRUMENTHEADER;
+		}
+		catch (std::bad_alloc& ba) {
+			return TRUE;
+		}
 		memset(smpmap, 0, sizeof(smpmap));
 		memset(penv, 0, sizeof(INSTRUMENTHEADER));
 		for (UINT ismpmap=0; ismpmap<pins->samples; ismpmap++)
@@ -430,12 +446,14 @@ BOOL CSoundFile::ReadAMS2(LPCBYTE lpStream, DWORD dwMemLength)
 		UINT composernamelen = lpStream[dwMemPos];
 		if (composernamelen)
 		{
-			m_lpszSongComments = new char[composernamelen+1]; // changed from CHAR
-			if (m_lpszSongComments)
-			{
-				memcpy(m_lpszSongComments, lpStream+dwMemPos+1, composernamelen);
+			try {
+				m_lpszSongComments = new char[composernamelen + 1]; // changed from CHAR
+
+				memcpy(m_lpszSongComments, lpStream + dwMemPos + 1, composernamelen);
 				m_lpszSongComments[composernamelen] = 0;
 			}
+			catch (std::bad_alloc& ba) {
+			}
 		}
 		dwMemPos += composernamelen + 1;
 		// channel names
@@ -563,9 +581,15 @@ BOOL CSoundFile::ReadAMS2(LPCBYTE lpStream, DWORD dwMemLength)
 void AMSUnpack(const char *psrc, UINT inputlen, char *pdest, UINT dmax, char packcharacter)
 {
 	UINT tmplen = dmax;
-	signed char *amstmp = new signed char[tmplen];
-	
-	if (!amstmp) return;
+	signed char *amstmp;
+
+	try {
+		amstmp = new signed char[tmplen];
+	}
+	catch (std::bad_alloc& ba) {
+		return;
+	}
+
 	// Unpack Loop
 	{
 		signed char *p = amstmp;