I am using platformIo environment to buil my C++ code based on Arduino framwork. I have added
#include < iostream>
#include < fstream>
Whicle compilation this error message:
/E R R O R - M E S S A G E*******/
Scanning dependencies…
No dependencies
Building in release mode
Compiling .pio/build/uno_wifi_rev2/src/cust_libs/led.cpp.o
src/cust_libs/led.cpp:15:10: fatal error: iostream: No such file or directory
#include < iostream>
^~~~~~~~~~
compilation terminated.
Compiling .pio/build/uno_wifi_rev2/src/cust_libs/mqtt.cpp.o
Compiling .pio/build/uno_wifi_rev2/src/cust_libs/wifi_ctrl.cpp.o
src/cust_libs/mqtt.cpp:15:10: fatal error: cstring: No such file or directory
#include < cstring>
^~~~~~~~~
compilation terminated.
Compiling .pio/build/uno_wifi_rev2/src/main.cpp.o
src/main.cpp:15:10: fatal error: iostream: No such file or directory
#include < iostream>
^~~~~~~~~~
compilation terminated.
In file included from src/cust_libs/wifi_ctrl.cpp:15:0:
src/cust_libs/wifi_ctrl.h:16:10: fatal error: WiFi.h: No such file or directory
/M A I N . C P P*****/
#include < iostream>
#include < fstream>
#include “cust_libs/headers.h”
#include “cust_libs/mqtt.h”
#include “cust_libs/led.h”
#include “cust_libs/wifi_ctrl.h”
// Creation of the wifi/mqtt objects
Wifi* wifi = new Wifi();
Mqtt* mqtt = new Mqtt();
// This function ‘setup’ gets called only once i.e. It initializes the things.
// We can write code which would get executed only once here.
void setup() {
delay(5000);
Serial.flush();
// Setting up the serial baud rate
Serial.begin(BAUD_RATE);
// Starting an log file to keep the track
// std::ofstream* logFile = new std::ofstream();
// logFile->open(LOG_FILE_NAME, std::ios::out | std::ofstream::app);
// if(!logFile->is_open()) {
// Serial.println(“ERROR: FILE NOT OPENED.”);
// }
// Setting up the member variables for both wifi/mqtt class
// Reason why we don’t have one common filePtr is because we probably
// do not understand the Arduino infrastructure very well.
// Ideally, there should be only one filePtr which is shareable across
// all classes of this project.
// wifi->setLogFile(logFile);
// mqtt->setLogFile(logFile);
// Defines the directions of the pins specified
pinMode(mqtt->led->getSensorPin(), INPUT);
// *logFile << “Pin number " << mqtt->led->getSensorPin() <<
// " made as sensor input” << std::endl;
pinMode(mqtt->led->getLedPin(), OUTPUT);
// *logFile << “Pin number " << mqtt->led->getLedPin() <<
// " made as led input” << std::endl;
// Connects the esp32 board with the wifi
// TODO: Collect the return status of this and take action accordingly.
Serial.println(“Connecting with WIFi”);
wifi->connectToWiFi();
Serial.println(“Setting up the mqtt clients”);
// Setting up the variables for making the esp32 board as an subscriber
// TODO: Collect the return status of this and take action accordingly.
mqtt->setupMqttClient();
// Connect the client to the broker
// Internally, it keeps trying till the time mqttClient is not connected
// to the broker
// mqtt->tryReconnectToBroker();
}
void loop() {
mqtt->myLoop();
// Publish the data to broker
mqtt->publishDataToBroker();
}