multi: Use go 1.22 language features.

cmd/v3tool/main.go

@@ -107,7 +107,7 @@ func run() int {
 		log.Infof("    %s", tkt)
 	}
 
-	for i := 0; i < len(tickets.Hashes); i++ {
+	for i := range len(tickets.Hashes) {
 		// Stop if shutdown requested.
 		if ctx.Err() != nil {
 			return 0

database/votechange_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 The Decred developers
+// Copyright (c) 2020-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 
@@ -39,7 +39,7 @@ func testVoteChangeRecords(t *testing.T) {
 	}
 
 	// Insert some more records, giving us one greater than the limit.
-	for i := 0; i < maxVoteChangeRecords; i++ {
+	for range maxVoteChangeRecords {
 		err = db.SaveVoteChange(hash, record)
 		if err != nil {
 			t.Fatalf("error storing vote change record in database: %v", err)

internal/vspd/config.go

@@ -379,7 +379,7 @@ func LoadConfig() (*Config, error) {
 
 	// Load dcrwallet RPC certificate(s).
 	walletCerts := make([][]byte, numCert)
-	for i := 0; i < numCert; i++ {
+	for i := range numCert {
 		certs[i] = cleanAndExpandPath(certs[i])
 		walletCerts[i], err = os.ReadFile(certs[i])
 		if err != nil {
@@ -394,7 +394,7 @@ func LoadConfig() (*Config, error) {
 	}
 
 	// Add default port for the active network if there is no port specified.
-	for i := 0; i < numHost; i++ {
+	for i := range numHost {
 		walletHosts[i] = normalizeAddress(walletHosts[i], cfg.network.WalletRPCServerPort)
 	}
 

internal/webapi/middleware.go

@@ -290,7 +290,7 @@ func (w *WebAPI) broadcastTicket(c *gin.Context) {
 
 				txBroadcast := func() bool {
 					// Wait for 1 second and try again, max 7 attempts.
-					for i := 0; i < 7; i++ {
+					for range 7 {
 						time.Sleep(1 * time.Second)
 						err := dcrdClient.SendRawTransaction(request.ParentHex)
 						if err == nil {

rpc/dcrwallet.go

@@ -34,7 +34,7 @@ type WalletConnect struct {
 func SetupWallet(user, pass, addrs []string, cert [][]byte, params *chaincfg.Params, log slog.Logger) WalletConnect {
 	clients := make([]*client, len(addrs))
 
-	for i := 0; i < len(addrs); i++ {
+	for i := range len(addrs) {
 		clients[i] = setup(user[i], pass[i], addrs[i], cert[i], log)
 	}