exit

This a short snippet of code, with two calls to exit(3) in case of failure. Do these calls deallocate memory allocated by malloc? Google search once says it does, and even more times, it doesn't... Should I add free()? Also: which is better if (!word) (it would also work for eg. word == 0 which is different from word == NULL, so I guess it is wrong) or if (word == NULL) ? char *word = NULL, *temp = NULL; word = (char *)malloc(sizeof(char) * size); if (!word) { /* or maybe rather it should be (word == NULL) */ perror("malloc fail"); if (fclose(fp)) { perror("fclose fail"); exit(3); /* exit

I have a legacy vb6 app that crashes on exit - both as an executable and in the IDE. How can I avoid the crash? I am currently unloading the forms (except the frmmain) in form_unload , releasing all the ADODB RecordSets, setting all the boundcollections = nothing. I have attempted to SetErrorMode SEM_NOGPFAULTERRORBOX in the form_terminate event and that has not stopped the error from occurring. I have also checked for subclasses being instantiated in my code and found none. I have checked into the components from outside Microsoft that are used - they are the ComponentOne flexgrid 8 spelling

I have a problem with a looper. I call looper.prepare() , and after doing something it all works fine. But if I rotate the device I get an exception on the prepare. 07-12 16:40:09.760: E/activity(15809): java.lang.RuntimeException: Only one Looper may be created per thread I'm trying to quit the looper, but it doesn't do anything. Here is my AsyncTask: @Override protected String doInBackground(String... args) { try{Looper.prepare(); //here start the exception try { URL url = new URL(link); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setDoInput(true); conn.connect();

It's definitely possible to execute code before main is called, as seen by many examples in this question . However, what if in that pre-main code, the program is told to exit via std::exit or std::abort ? Since main is defined as the start of a program, what consequences are there from exiting before the start? Upon printing something in each section, I get the following results: Format: Section : output Main : main Init (called before main) : init Exit (set up with std::atexit inside Init) : exiting Sample runs: Init called without exiting: init main returns 0 Init calls std::exit(0): init

If I fail to explicitly call exit for certain function-based Bash scripts then there are additional unexpected executions for some functions. What is causing this? The behavior was first noticed while making a git alias as part of answering another user's question on StackOverflow . That alias was composed of this script ( which runs the function twice instead of once ): #!/usr/bin/env bash github(){ echo github; }; twitter(){ echo twitter; }; facebook(){ echo facebook; }; if [[ $(type -t "$1") == "function" ]]; then "$1"; else echo "There is no defined function for $1"; fi; But this slightly