Replace boolean type with bool in examples

This is part of a move to encourage use of the standard bool type over Arduino's non-standard boolean type alias.

Author: per1234

examples/GPRSPing/GPRSPing.ino

@@ -39,7 +39,7 @@ void setup() {
 
  Serial.println("Starting Arduino GPRS ping.");
  // connection state
- boolean connected = false;
+ bool connected = false;
 
  // After starting the modem with GSM.begin()
  // attach the shield to the GPRS network with the APN, login and password

examples/GPRSUdpNtpClient/GPRSUdpNtpClient.ino

@@ -56,7 +56,7 @@ void setup()
 
   Serial.println("Starting Arduino GPRS NTP client.");
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // After starting the modem with GSM.begin()
   // attach the shield to the GPRS network with the APN, login and password

examples/GsmLocation/GsmLocation.ino

@@ -40,7 +40,7 @@ void setup() {
 
   Serial.println("Starting GSM location.");
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // After starting the modem with GSM.begin()
   // attach the shield to the GPRS network with the APN, login and password

examples/GsmSSLWebClient/GsmSSLWebClient.ino

@@ -45,7 +45,7 @@ void setup() {
 
   Serial.println("Starting Arduino web client.");
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // After starting the modem with GSM.begin()
   // attach the shield to the GPRS network with the APN, login and password

examples/GsmWebClient/GsmWebClient.ino

@@ -45,7 +45,7 @@ void setup() {
 
   Serial.println("Starting Arduino web client.");
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // After starting the modem with GSM.begin()
   // attach the shield to the GPRS network with the APN, login and password

examples/GsmWebServer/GsmWebServer.ino

@@ -42,7 +42,7 @@ void setup() {
   }
 
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // Start GSM shield
   // If your SIM has PIN, pass it as a parameter of begin() in quotes

examples/MakeVoiceCall/MakeVoiceCall.ino

@@ -43,7 +43,7 @@ void setup() {
   Serial.println("Make Voice Call");
 
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // Start GSM shield
   // If your SIM has PIN, pass it as a parameter of begin() in quotes

examples/ReceiveSMS/ReceiveSMS.ino

@@ -38,7 +38,7 @@ void setup() {
   Serial.println("SMS Messages Receiver");
 
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // Start GSM connection
   while (!connected) {

examples/ReceiveVoiceCall/ReceiveVoiceCall.ino

@@ -38,7 +38,7 @@ void setup() {
   Serial.println("Receive Voice Call");
 
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // Start GSM shield
   // If your SIM has PIN, pass it as a parameter of begin() in quotes

examples/SendSMS/SendSMS.ino

@@ -39,7 +39,7 @@ void setup() {
   Serial.println("SMS Messages Sender");
 
   // connection state
-  boolean connected = false;
+  bool connected = false;
 
   // Start GSM shield
   // If your SIM has PIN, pass it as a parameter of begin() in quotes