expected constructor, destructor, or type conversion before '(' token

[parameshwari]

//3,4=gps 
//9,5=gsm
//6,7=us
//9,10,11,12,13=rfid
//rx,tx=esp

//Changes should be done based on the output of previous program

#include "SPI.h"
#include "MFRC522.h"

#define SS_PIN 10
#define RST_PIN 9
#define SP_PIN 8

MFRC522 rfid(SS_PIN, RST_PIN);

MFRC522::MIFARE_Key key;

#include <TinyGPS++.h>
#include <SoftwareSerial.h>
#include <SPI.h>
#include <WiFi.h>

char ssid[] = "redmi";      // your network SSID (name)
char pass[] = "paramesh33";
int keyIndex = 0;           // your network key Index number (needed only for WEP)

int status = WL_IDLE_STATUS;

WiFiServer server(80);
static const int RXPin = 4, TXPin = 3;//gps
static const uint32_t GPSBaud = 9600;

// The TinyGPS++ object
TinyGPSPlus gps;

// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);//gps
SoftwareSerial mySerial(9, 5);//gsm

const int pingPin = 7;
const int echoPin = 6;//ultrasonic sensor
//double rfid;
float lat1,lon1,lat2,lon2,lat3,lon3,lat4,lon4,lat5,lon5,amount;
int rvalue=0,uvalue=0,t1=0,t2=0,t3=0,t4=0,t5=0,km=10;
void setup()
{
  Serial.begin(9600);
  SPI.begin();
  rfid.PCD_Init();
  ss.begin(GPSBaud);
  mySerial.begin(9600);

   while (!Serial)
   {
    ; // wait for serial port to connect. Needed for native USB port only
   }

  // check for the presence of the shield:
  if (WiFi.status() == WL_NO_SHIELD)
  {
    Serial.println("WiFi shield not present");
    // don't continue:
    while (true);
  }

  String fv = WiFi.firmwareVersion();
  if (fv != "1.1.0")
  {
    Serial.println("Please upgrade the firmware");
  }

  // attempt to connect to Wifi network:
  while (status != WL_CONNECTED)
  {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:
    delay(1000);
  }
  server.begin();
  // you're connected now, so print out the status:
  Serial.print("You're connected to the network");
}


void loop()
{
  if (!rfid.PICC_IsNewCardPresent() || !rfid.PICC_ReadCardSerial())
    return;

  // Serial.print(F("PICC type: "));
  MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);
  // Serial.println(rfid.PICC_GetTypeName(piccType));

  // Check is the PICC of Classic MIFARE type
  if (piccType != MFRC522::PICC_TYPE_MIFARE_MINI &&
    piccType != MFRC522::PICC_TYPE_MIFARE_1K &&
    piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
    Serial.println(F("Your tag is not of type MIFARE Classic."));
    return;
  }

  String strID = "";
  for (byte i = 0; i < 4; i++) {
    strID +=
    (rfid.uid.uidByte[i] < 0x10 ? "0" : "") +
    String(rfid.uid.uidByte[i], HEX) +
    (i!=3 ? ":" : "");
  }
  strID.toUpperCase();

  Serial.print("Tap card key: ");
  Serial.println(strID);
  if (strID.indexOf("E9:A3:DD:2B") >= 0)//1
  {
    t1=t1+1;
    rvalue = rvalue+1;
    if(t1%2==1)
    {
      Serial.print("parameshwari entered");
      while (ss.available() > 0)
      {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat1=gps.location.lat();
      Serial.print(lat1, 6);
      Serial.print(" Longitude= "); 
      lon1=gps.location.lng();
      Serial.println(lon1,6);
    }
  }
    }
    if(t1%2==0)
    {
      Serial.print("parameshwari is leaving");
      while (ss.available() > 0)
      {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat2=gps.location.lat();
      Serial.println(lat2, 6);
      Serial.print(" Longitude= "); 
      lon2=gps.location.lng();
      Serial.println(lon2,6);
      long distance = sqrt((lat1 - lat2) * (lat1 - lat2) + (lon1 - lon2) * (lon1 - lon2));
      mySerial.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
      mySerial.println("AT+CMGS="+917397170927"\r"); // Replace x with mobile number
      mySerial.println("you travelled");// The SMS text you want to send
      mySerial.println(distance);
      mySerial.println("kilometers.");
      amount=km*distance;
      mySerial.println(amount);
      mySerial.println("is reduced from your account");
      mySerial.println((char)26);// ASCII code of CTRL+Z
    }
    }
    }
    }//1

    if (strID.indexOf("38:86:8D:33") >= 0)//2
  {
    t1=t1+1;
    rvalue = rvalue+1;
    if(t1%2==1)
    {
      Serial.print("priya entered");
      while (ss.available() > 0)
      {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat1=gps.location.lat();
      Serial.print(lat1, 6);
      Serial.print(" Longitude= "); 
      lon1=gps.location.lng();
      Serial.println(lon1,6);
    }
  }
    }
    if(t1%2==0)
    {
      Serial.print("priya is leaving");
       while (ss.available() > 0)
       {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat2=gps.location.lat();
      Serial.print(lat2, 6);
      Serial.print(" Longitude= "); 
      lon2=gps.location.lng();
      Serial.println(lon2,6);
      long distance = sqrt((lat1 - lat2) * (lat1 - lat2) + (lon1 - lon2) * (lon1 - lon2));
      mySerial.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
      mySerial.println("AT+CMGS="+917397170927"\r"); // Replace x with mobile number
      mySerial.println("you travelled");// The SMS text you want to send
      mySerial.println(distance);
      mySerial.println("kilometers.");
      amount=km*distance;
      mySerial.println(amount);
      mySerial.println("is reduced from your account");
      mySerial.println((char)26);// ASCII code of CTRL+Z
    }
    }
    }
    }//2

    if (strID.indexOf("E4:0A:BA:EB") >= 0)//3
  {
    t1=t1+1;
    rvalue = rvalue+1;
    if(t1%2==1)
    {
      Serial.print("preethi entered");
      while (ss.available() > 0)
      {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat1=gps.location.lat();
      Serial.print(lat1, 6);
      Serial.print(" Longitude= "); 
      lon1=gps.location.lng();
      Serial.println(lon1,6);
    }
  }
    }
    if(t1%2==0)
    {
      Serial.print("preethi is leaving");
       while (ss.available() > 0)
       {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat2=gps.location.lat();
      Serial.print(lat2, 6);
      Serial.print(" Longitude= "); 
      lon2=gps.location.lng();
      Serial.println(lon2,6);
      long distance = sqrt((lat1 - lat2) * (lat1 - lat2) + (lon1 - lon2) * (lon1 - lon2));
      mySerial.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
      mySerial.println("AT+CMGS="+917397170927"\r"); // Replace x with mobile number
      mySerial.println("you travelled");// The SMS text you want to send
      mySerial.println(distance);
      mySerial.println("kilometers.");
      amount=km*distance;
      mySerial.println(amount);
      mySerial.println("is reduced from your account");
      mySerial.println((char)26);// ASCII code of CTRL+Z
      }
    }
    }
    }//3

    if (strID.indexOf("E4:0A:BA:EB") >= 0)//4
    {
    t1=t1+1;
    rvalue = rvalue+1;
    if(t1%2==1)
    {
      Serial.print("pradhiksha entered");
      while (ss.available() > 0)
      {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat1=gps.location.lat();
      Serial.print(lat1, 6);
      Serial.print(" Longitude= "); 
      lon1=gps.location.lng();
      Serial.println(lon1,6);
    }
  }
    }
    if(t1%2==0)
    {
      Serial.print("pradhiksha is leaving");
       while (ss.available() > 0)
       {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat2=gps.location.lat();
      Serial.print(lat2, 6);
      Serial.print(" Longitude= "); 
      lon2=gps.location.lng();
      Serial.println(lon2,6);
      long distance = sqrt((lat1 - lat2) * (lat1 - lat2) + (lon1 - lon2) * (lon1 - lon2));
      mySerial.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
      mySerial.println("AT+CMGS="+917397170927"\r"); // Replace x with mobile number
      mySerial.println("you travelled");// The SMS text you want to send
      mySerial.println(distance);
      mySerial.println("kilometers.");
      amount=km*distance;
      mySerial.println(amount);
      mySerial.println("is reduced from your account");
      mySerial.println((char)26);// ASCII code of CTRL+Z
    }
    }
    }
    }//4

    if (strID.indexOf("E4:0A:BA:EB") >= 0)//5
  {
    t1=t1+1;
    rvalue = rvalue+1;
    if(t1%2==1)
    {
      Serial.print("rashmitha entered");
      while (ss.available() > 0)
      {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat1=gps.location.lat();
      Serial.print(lat1, 6);
      Serial.print(" Longitude= "); 
      lon1=gps.location.lng();
      Serial.println(lon1,6);
    }
  }
    }
    if(t1%2==0)
    {
      Serial.print("rashmitha is leaving");
       while (ss.available() > 0)
       {
      gps.encode(ss.read());
      if (gps.location.isUpdated())
      {
      Serial.print("Latitude= "); 
      lat2=gps.location.lat();
      Serial.print(lat2, 6);
      Serial.print(" Longitude= "); 
      lon2=gps.location.lng();
      Serial.println(lon2,6);
      long distance = sqrt((lat1 - lat2) * (lat1 - lat2) + (lon1 - lon2) * (lon1 - lon2));
      mySerial.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
      mySerial.println("AT+CMGS="+917397170927"\r"); // Replace x with mobile number
      mySerial.println("you travelled");// The SMS text you want to send
      mySerial.println(distance);
      mySerial.println("kilometers.");
      amount=km*distance;
      mySerial.println(amount);
      mySerial.println("is reduced from your account");
      mySerial.println((char)26);// ASCII code of CTRL+Z
    }
    }
    }
    }//5

    
  }
  long duration, inches, cm;
   pinMode(pingPin, OUTPUT);
   digitalWrite(pingPin, LOW);
   delayMicroseconds(2);
   digitalWrite(pingPin, HIGH);
   delayMicroseconds(10);
   digitalWrite(pingPin, LOW);
   pinMode(echoPin, INPUT);
   duration = pulseIn(echoPin, HIGH);
   cm = microsecondsToCentimeters(duration);
   Serial.print(cm);
   Serial.print("cm");
   if(cm<20)
   {
    uvalue=uvalue+1;
   }
   if(uvalue!=rvalue)
   {
    Serial.begin("someone entered illegally");
   }
}
long microsecondsToCentimeters(long microseconds)
{
   return microseconds / 29 / 2;
}

this is my code, while compiling i am getting error but i don't know what's wrong in that

 

[betwixt]

What is this program, what language is it in, what compiler, what target and most importantly, what line does the error report as?

Normally constructor errors occur when C++ is being used but your code looks more like standard 'C'.

Brian.

 

[baileychic]

It is Arduino code.

 

[betwixt]

The error "constructor" and "destructor" suggest C++ is being used but as far as I'm aware Arduino can't do that.

Regardless, I can't spot anything C++ related in the code and a quick glance reveals most of it is repeated blocks with different names which appear to be selected by different RFID identifiers. I don't see any obvious errors so it would be useful to know which line upsets the compiler.

Brian.

 

[andre_luis]

this is my code, while compiling i am getting error but i don't know what's wrong in that

In general, not to say always, compiler gives the line on the code where the error lies.