I have two servers one of which is running RHEL 7.4 and the other one is CentOS 8 the RHEL comes with gcc 4.8.5 and libc.so.6 at 2.17 the CentOS comes with gcc 8.3.1 and libc 2.28 I built a…
I'm trying to trigger a stack-overflow crash. most probably, the crash value is not 1684 in you sandbox. but you will find your own value when running. I just want to know a way to figure these out. The program…
I'm trying to compile a hello world program in C using gcc I'm using gcc 9.3.0 & ubuntu 20.04 this is my c program 'hello.c' #include<stdio.h> int main() { printf("Hello Worldn"); return 0; } When I compile gcc hello.c it…
I wanted to try making my own absolute value function. I figured that the fastest way to calculate absolute value would be to simply mask out the sign bit (the last bit in IEEE 754). I wanted to compare it's…
So the problem is that I have to print a value(decimal, octal, hex) between two characters. The code is: #include <stdio.h> int main (void) { char a, b; int z, temp; printf("Enter first character: "); scanf("%s", &a); printf("Enter second character:…
Environment OS: Ubunty 20.4, Centos 8, macOS Catalina 10.15.7 Language: C, C++ Compiler: gcc (most recent versions for each OS) Issue I am using wordexp Posix library function to get shell-like expansion of strings. The expansion works fine with one…
I've just purchased the book Beginning C++20 (the eBook version) and I'm trying to compile the first example using the new C++20 method. The content of the source file is // Ex1_01.cpp // A Complete C++ program import <iostream>; int…
I am trying to cross compile a small rust application for the RPI. I am cross compiling because compiling directly on the PI takes way too long and it hits 75C. I followed various instructions, but what I ended up…
I have the following variable "places" which is a ptr to a dynamic array of string locations: uint32_t* places; I would like for my function to return a DUPLICATE pointer of type (uint32_t*) My current attempt: uint32_t arrCpy = malloc((numberOfElements)…
I am a C beginner and trying this and that. I want to display a string letter by letter with tiny pauses in between. So my idea was a small pause using sleep or usleep after displaying each char but…