I had made a post yesterday but I scrapped it and approached it with C++ instead of Java. I tested the code on the compiler installed on my computer and it ran fine. When I run it on HackerRank, it keeps giving me Segmentation fault. Please find the code and compiler output below. I read… Read More I'm getting a SIGSEV signal when running a program on HackerRank

So i’m getting a Segmentation fault: 11 error and I know which block is causing it, but i’m trying to understand why. std::vector<Entity> grassEntities; for (int i = 0; i < 40; i++) { grassEntities.push_back(Entity(i * 32, 592, grassTexture)); } std::vector<Entity> dirtEntities; for (int i = 0; i < 4; i++) { for (int j… Read More Every few attempts to run my build, I get a segmentation fault. I dont understand why

I just started learning structs, and I’m trying to use them with pointers to get better skills at C programming. Now, in the exersice I have to preload 2 of the 4 employees that can be loaded on the program (specifically, slot 0 and 1 of db1[4]). Now, while preloading, the program is able to… Read More How are arrays of Structs with arrays and non-arrays organized in memory?

Here is my code about Matrix (I decided to practise OOP writing own Matrix class) Matrix.hpp #ifndef MATRIX_HEADER #define MATRIX_HEADER typedef unsigned int u_int; class Matrix { double **mtrx; u_int x, y; public: Matrix(u_int a, u_int b); Matrix(const Matrix &); ~Matrix(); double det(); Matrix operator+(const Matrix &) const; Matrix operator-(const Matrix &) const; Matrix operator*(const… Read More Why it is a segmentation fault with this code fragment?

I’m trying to make a login/register project and I have difficulties in declaring the char* tempUsername from this code (SIGSEVG segmentation fault) char *tempUsername, *tempPassword, *tempPasswordConfirm, *tempSecurityQuestion; /* no other declaration for tempUsername here */ std::cout<<"Enter your new username:\n"; std::cin>>tempUsername; //process stops here if(fileSearch(newFilename(tempUsername))) { std::cout<<"Username already exists! Choose another username!\n"; } else { std::cout<<"Enter… Read More Declaring a char pointer

So I initialize a vector within a main function, and pass that vector as a reference into a function where its size changes. Now, I would imagine that the initialized vector within the main would change in size, but its not. Am I just implementing this incorrectly? #include <iostream> #include <vector> using std::vector; void createImage(vector<vector<char>… Read More Segmentation Fault when refrencing vectors that changed size

I am using threads for the first time and came across a weird segmentation error whenever the called function takes very large arrays. #include <iostream> #include <thread> #include <cmath> const int dimension = 100000; // Dimension of the array // Create a simple function of an array void absolut(double *vec) { double res = 0.;… Read More Segmentation fault when using threads on function with large arrays -C++

I am trying to load two files into memory, one as an array of 2d arrays of chars (i.e., a char ***) and the other as a hash table. My whole file is below, and I can share the files in files/ if they are asked for. My goal is to implement a minimax algorithm… Read More One of two similar while loops is causing segfault at fread

I’ve been going through the K&R 2nd edition book and I’ve been stuck trying to get one of the examples to run properly. The code taken straight from chapter 5 in the book (with some random variables I added in main): static char daytab[2][13] = { {0, 31, 28, 31, 30, 31, 30, 31, 31,… Read More Why is my pointer being initialized to 0x0?