Top "Main" questions

QApplication app(argc, argv)

I noticed that the main.cpp in a Qt application has to contain the following line: QApplication app(argc, argv); …

c++ qt main argv argc

Does int main() need a declaration on C++?

When reading about functions in C++, I was taught that functions need declarations to be called. For example: #include <…

c++ main forward-declaration function-declaration

Java running main method of other class, when JButton is pressed

I am trying to develop a JFrame which has two buttons that would let me to call the main method …

java swing main event-dispatch-thread invokelater

Is main() overloaded in C++?

2 valid versions of main() exist in C++: int main() // version 1 int main(int argc, char **argv) // version 2 But both overloads …

c++ overloading main

GCC: how to tell GCC to put the 'main' function at the start of the .text section?

I've just started learning some ARM programming and I've got stuck in a slightly annoying problem. The toolchain I'm using …

gcc main ld linker-scripts objcopy

How do you pass arguments from command line to main in Flutter/Dart?

How would you run a command and pass some custom arguments with Flutter/Dart so they can then be accessed …

dart flutter command main args

Xcode 8 beta 6: main.swift won't compile

We have a custom UIApplication object, so our main.swift was import Foundation import UIKit UIApplicationMain(Process.argc, Process.unsafeArgv, …

swift xcode main swift3 xcode8-beta6

Passing filepath into Main(string[] args) not working

I am trying to pass a file path into a C# Console Application but am having problems with the string …

c# console-application main filepath args

jasypt in cmd: cannot find main class

I am using jasypt 1.9.2 in Windows 7 x64 cmd. Here's encrypt.bat content: ECHO ON set SCRIPT_NAME=encrypt.bat set …

batch-file command-line main jasypt

Why is argc not a constant?

int main( const int argc , const char[] const argv) As Effective C++ Item#3 states "Use const whenever possible", I start …

c++ constants main argc effective-c++