Program exited with code 0377 in gdb4/27/2023 ![]() ![]() giving below for your info for simple c program ![]() Using GDB, we can see functions which are called when the process terminates. Infact printf() function wont print or flush the data until buffer completes or end of the character is \n. We got the output Hello, this is due to we are forcefully flushing the data using '\n'. This is due to ,we called _exit() function directly, so IO related data is not flushed, so printf data is not flushed, because of this, it has printed nothing. Result we got as expected and there is no \n at the end, so on the same line prompt came. We need to use strlid.h for exit() and unistd.h for _exit() functions. ![]() There is another function called _Exit() function which also works same as _exit() functionally. It is not advisable to call the _exit() function in your programming until unless you are very clear. Where as _exit() function just terminates the process without cleaning up or flushing user data. ![]() exit() function internally calls _exit() function which cleans up kernel related data before terminating the process.Įxit() flushes the IO related buffer before exiting the process and calls the _exit() function. exit() cleans up the user-mode data related to library. Exit function will be called automatically when the program is terminates. In C programming language, exit function is used to terminate the process. ![]()
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