Fixed warnings in Timidity++ code emitted by XCode, except one which cannot be eliminatet without compromising the code.

src/sound/i_soundfont.h

@@ -40,6 +40,7 @@ protected:
    
 public:
     
+    virtual ~FSoundFontReader() {}
     virtual FileReader *OpenMainConfigFile() = 0;    // this is special because it needs to be synthesized for .sf files and set some restrictions for patch sets
     virtual FileReader *OpenFile(const char *name) = 0;
     std::pair<FileReader *, FString> LookupFile(const char *name);
@@ -96,7 +97,6 @@ class FLumpPatchSetReader : public FSoundFontReader
 
 public:
     FLumpPatchSetReader(const char *filename);
-    ~FLumpPatchSetReader();
     virtual FileReader *OpenMainConfigFile() override;
     virtual FileReader *OpenFile(const char *name) override;
 	virtual FString basePath() const override
@@ -120,7 +120,6 @@ class FPatchSetReader : public FSoundFontReader
 public:
 	FPatchSetReader();
 	FPatchSetReader(const char *filename);
-	~FPatchSetReader();
 	virtual FileReader *OpenMainConfigFile() override;
 	virtual FileReader *OpenFile(const char *name) override;
 	virtual FString basePath() const override

src/sound/timiditypp/playmidi.cpp

@@ -2467,8 +2467,6 @@ void Player::make_drum_effect(int ch)
 	struct DrumParts *drum;
 	struct DrumPartEffect *de;
 
-	if (channel[ch].drums == NULL) {return;}
-
 	if (channel[ch].drum_effect_flag == 0) {
 		free_drum_effect(ch);
 		memset(note_table, 0, sizeof(int8_t) * 128);
@@ -4489,8 +4487,7 @@ void Player::update_rpn_map(int ch, int addr, int update_now)
 		} else
 			channel[ch].drums[note]->pan_random = 0;
 		channel[ch].drums[note]->drum_panning = val;
-		if (update_now && adjust_panning_immediately
-				&& ! channel[ch].pan_random)
+		if (update_now && adjust_panning_immediately && ! channel[ch].pan_random)
 			adjust_drum_panning(ch, note);
 		break;
 	case NRPN_ADDR_1D00:	/* Reverb Send Level of Drum */
@@ -6123,7 +6120,7 @@ void Player::send_long_event(const uint8_t *sysexbuffer, int exlen)
 	MidiEvent evm[260];
 	SysexConvert sc;
 
-	if ((sysexbuffer[0] != '\xf0') && (sysexbuffer[0] != '\xf7')) return;
+	if ((sysexbuffer[0] != 0xf0) && (sysexbuffer[0] != 0xf7)) return;
 	
 	if (sc.parse_sysex_event(sysexbuffer + 1, exlen - 1, &ev, instruments)) 
 	{
@@ -6141,7 +6138,7 @@ void Player::send_long_event(const uint8_t *sysexbuffer, int exlen)
 		}
 		play_event(&ev);
 	}
-	if (ne = sc.parse_sysex_event_multi(sysexbuffer + 1, exlen - 1, evm, instruments)) 
+	if ((ne = sc.parse_sysex_event_multi(sysexbuffer + 1, exlen - 1, evm, instruments)))
 	{
 		for (i = 0; i < ne; i++) 
 		{

src/sound/timiditypp/recache.h

@@ -64,11 +64,11 @@ class Recache
 		struct cache_hash *cache[128];
 	};
 
-	CNote channel_note_table[MAX_CHANNELS] = { 0 };
-	sample_t *cache_data = NULL;
-	splen_t cache_data_len = 0;
-	struct cache_hash *cache_hash_table[HASH_TABLE_SIZE] = { 0 };
-	MBlockList hash_entry_pool = { nullptr, 0 };
+	CNote channel_note_table[MAX_CHANNELS];
+	sample_t *cache_data;
+	splen_t cache_data_len;
+	struct cache_hash *cache_hash_table[HASH_TABLE_SIZE];
+	MBlockList hash_entry_pool;
 
 
 	void free_cache_data(void);
@@ -82,6 +82,7 @@ public:
 
 	Recache(Player *p)
 	{
+        memset(this, 0, sizeof(*this));
 		player = p;
 		resamp_cache_reset();
 	}

src/sound/timiditypp/reverb.cpp

@@ -1284,7 +1284,7 @@ void Reverb::do_ch_freeverb(int32_t *buf, int32_t count, InfoFreeverb *rev)
 		return;
 	}
 
-	for (k = 0; k < count; k++)
+	for (k = 0; k < count; k+=2)
 	{
 		input = reverb_effect_buffer[k] + reverb_effect_buffer[k + 1];
 		outl = outr = reverb_effect_buffer[k] = reverb_effect_buffer[k + 1] = 0;
@@ -1303,7 +1303,6 @@ void Reverb::do_ch_freeverb(int32_t *buf, int32_t count, InfoFreeverb *rev)
 		}
 		buf[k] += imuldiv24(outl, rev->wet1i) + imuldiv24(outr, rev->wet2i);
 		buf[k + 1] += imuldiv24(outr, rev->wet1i) + imuldiv24(outl, rev->wet2i);
-		++k;
 	}
 }
 
@@ -1500,7 +1499,7 @@ void Reverb::do_ch_plate_reverb(int32_t *buf, int32_t count, InfoPlateReverb *in
 		return;
 	}
 
-	for (i = 0; i < count; i++)
+	for (i = 0; i < count; i+=2)
 	{
 		outr = outl = 0;
 		x = (reverb_effect_buffer[i] + reverb_effect_buffer[i + 1]) >> 1;
@@ -1573,8 +1572,6 @@ void Reverb::do_ch_plate_reverb(int32_t *buf, int32_t count, InfoPlateReverb *in
 
 		buf[i] += outl;
 		buf[i + 1] += outr;
-
-		++i;
 	}
 	info->t1 = t1, info->t1d = t1d;
 }
@@ -2266,7 +2263,7 @@ void Reverb::do_overdrive1(int32_t *buf, int32_t count, EffectList *ef)
 	} else if(count == MAGIC_FREE_EFFECT_INFO) {
 		return;
 	}
-	for(i = 0; i < count; i++) {
+	for(i = 0; i < count; i+=2) {
 		input = (buf[i] + buf[i + 1]) >> 1;
 		/* amp simulation */
 		(this->*do_amp_sim)(&input, asdi);
@@ -2281,7 +2278,6 @@ void Reverb::do_overdrive1(int32_t *buf, int32_t count, EffectList *ef)
 		input = imuldiv24(high + input, leveli);
 		buf[i] = do_left_panning(input, pan);
 		buf[i + 1] = do_right_panning(input, pan);
-		++i;
 	}
 }
 
@@ -2317,7 +2313,7 @@ void Reverb::do_distortion1(int32_t *buf, int32_t count, EffectList *ef)
 	} else if(count == MAGIC_FREE_EFFECT_INFO) {
 		return;
 	}
-	for(i = 0; i < count; i++) {
+	for(i = 0; i < count; i+=2) {
 		input = (buf[i] + buf[i + 1]) >> 1;
 		/* amp simulation */
 		(this->*do_amp_sim)(&input, asdi);
@@ -2332,7 +2328,6 @@ void Reverb::do_distortion1(int32_t *buf, int32_t count, EffectList *ef)
 		input = imuldiv24(high + input, leveli);
 		buf[i] = do_left_panning(input, pan);
 		buf[i + 1] = do_right_panning(input, pan);
-		++i;
 	}
 }
 
@@ -2504,7 +2499,7 @@ void Reverb::do_hexa_chorus(int32_t *buf, int32_t count, EffectList *ef)
 	spt5 = index - pdelay5 - (f5 >> 8);	/* integral part of delay */
 	if(spt5 < 0) {spt5 += size;}
 
-	for(i = 0; i < count; i++) {
+	for(i = 0; i < count; i+=2) {
 		v0 = ebuf[spt0], v1 = ebuf[spt1], v2 = ebuf[spt2],
 		v3 = ebuf[spt3], v4 = ebuf[spt4], v5 = ebuf[spt5];
 
@@ -2556,7 +2551,6 @@ void Reverb::do_hexa_chorus(int32_t *buf, int32_t count, EffectList *ef)
 			+ do_right_panning(hist4, pan4) + do_right_panning(hist5, pan5)
 			+ imuldiv24(buf[i + 1], dryi);
 
-		++i;
 	}
 	buf0->size = size, buf0->index = index;
 	info->spt0 = spt0, info->spt1 = spt1, info->spt2 = spt2,

src/sound/timiditypp/sffile.cpp

@@ -257,9 +257,7 @@ int Instruments::chunkid(char *id)
 		{"ICMT", ICMT_ID},
 	};
 
-	int i;
-
-	for (i = 0; i < sizeof(idlist) / sizeof(idlist[0]); i++) {
+	for (unsigned i = 0; i < sizeof(idlist) / sizeof(idlist[0]); i++) {
 		if (strncmp(id, idlist[i].str, 4) == 0)
 			return idlist[i].id;
 	}

src/sound/timiditypp/smplfile.cpp

@@ -752,7 +752,7 @@ int Instruments::import_aiff_load(char *sample_file, Instrument *inst)
 	if (compressed)
 	{
 		READ_LONG_BE(compressionType);
-		if (compressionType != BE_LONG(0x4E4F4E45) /* NONE */)
+		if (compressionType != (uint32_t)BE_LONG(0x4E4F4E45) /* NONE */)
 		{
 			char		compressionName[256];
 			uint8_t		compressionNameLength;
@@ -789,9 +789,10 @@ int Instruments::read_AIFFSoundDataChunk(struct timidity_file *tf, AIFFSoundData
 		if (mode == 0)		/* read both information and data */
 			return read_AIFFSoundData(tf, sound->inst, sound->common);
 		/* read information only */
-		if ((sound->position = tf_tell(tf)) == -1)
+        auto pos = tf_tell(tf);
+		if (pos == -1)
 			goto fail;
-		sound->position += offset;
+		sound->position = pos + offset;
 		csize -= 8;
 		if (tf_seek(tf, csize, SEEK_CUR) == -1)
 			goto fail;