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Questions tagged [entry-point]

For questions concerning the "entry point" of an application or library. The entry point is a special function or location in the code where control is passed from the operating system to the program.

450 questions
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Is main() really start of a C++ program?

The section $3.6.1/1 from the C++ Standard reads, A program shall contain a global function called main, which is the designated start of the program. Now consider this code, int square(int i) { return i*i; } int user_main() { for ( int i = 0…
Nawaz
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Is ‘int main;’ a valid C/C++ program?

I ask because my compiler seems to think so, even though I don’t. echo 'int main;' | cc -x c - -Wall echo 'int main;' | c++ -x c++ - -Wall Clang issues no warning or error with this, and gcc issues only the meek warning: 'main' is usually a function…
Geoff Nixon
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What are the valid signatures for C's main() function?

What really are the valid signatures for main function in C? I know: int main(int argc, char *argv[]) Are there other valid ones?
Prady
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Replacing the WPF entry point

WPF defines its own Main() method. How should I go about replacing it with my own Main method that (normally) opens the WPF MainWindow (e.g. to add a non-WPF scripting mode via command-line arguments)?
Qwertie
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What happens to entrypoint of Docker parent image when child defines another one?

Let's say I've got the Docker image parent built by this Dockerfile: FROM ubuntu ENTRYPOINT ["parent-entry"] Now I inherit from this parent image in my child image built with this code: FROM parent ENTRYPOINT ["child-entry"] As far as I have…
Harold L. Brown
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4 answers

getting permission denied in docker run

I am trying using Docker using Dockerfile. My Dockerfile as follows, where I am using debian linux system. FROM debian:jessie ENV DEBIAN_FRONTEND noninteractive ARG AIRFLOW_VERSION=1.7.1.3 ENV AIRFLOW_HOME /usr/local/airflow .. .. COPY…
Kush Patel
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How to change entry point of C program with gcc?

How to change the entry point of a C program compiled with gcc ? Just like in the following code #include int entry() //entry is the entry point instead of main { return 0; }
asitm9
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How to Fix Entry Point Not Found while installing libraries in conda environment

I'm working on Anaconda by making multiple environments in it. I have made an environment camelot and now I want to install different libraries in this environment. So for example to install pandas in this environment, I'm writing: conda install…
Usman Ghani Mughal
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6 answers

Webpack, multiple entry points Sass and JS

Below is my webpack config. At the moment the file loads this main.js entry point import './resources/assets/js/app.js'; import './resources/assets/sass/main.scss'; I can get both files in the public/js files but I would like to get the css and js…
LeBlaireau
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3 answers

Difference between WinMain,main and DllMain in C++

What is the difference between the three functions and when to use them??
Ahmed
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I need an alternative to `Assembly.GetEntryAssembly()` that never returns null

I need to find the assembly in which managed code execution started. // using System.Reflection; Assembly entryAssembly = Assembly.GetEntryAssembly(); This seems like the way to go, but the MSDN reference page for Assembly.GetEntryAssembly states…
stakx - no longer contributing
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To write or not to write `module Main where` in Haskell

Haskell 98 specification says that the entry point of a program, namely, function main, should reside in the module called Main, by convention. However, even if you don't write module Main where at the top of the file you write main in, the source…
Pteromys
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How to dynamically add and load entry points?

I am developing a slack bot with plugins using entry points. I want to dynamically add a plugin during runtime. I have a project with this structure: + ~/my_project_dir/ + my_projects_python_code/ + plugins/ - plugin1.py -…
Hebron George
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React main entry point

I don't understand the structure of most boilerplates out there. I always see 2 files named "index" (one js file and an other html file). I want to understand how the main entry point works. I often see web pack for this job but my main concern is,…
popo63301
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How can Android source code not have a main method and still run?

I've seen this in a few tutorials now... but how in the world can Android source code not have a main method and still run. For example (from http://developer.android.com/guide/tutorials/hello-world.html): public class HelloAndroid extends Activity…
MGoBlue93
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