I’m working on a GDB project for class an I’m finding issues with a segfault portion in a piece of code that reads a file and creates a matrix with the input. GDB brings me to the "printf("%.2d\t", mat[row][col]);" in printMatrix() but I can’t seem to grasp what exactly goes wrong. int main(int argc, char*… Read More Segmentation Fault Issue in Matrix GDB Project

Segfault on accessing pointers I’m developing simple GTK3 C app (using WSL2 and VSCode), but when I try to deserialize structs from file I’m getting Segfault (I’m not really familiar with gdb, so when I tried to debug I couldn’t really find the line which causes error). My Code Struct definition typedef struct whatev {… Read More How to overcome Segfault on accessing pointer to array

I’m still a beginner in C, but as training I would like to create a Password Manager(a very bad on though). First a .txt file is created, and then the user is given an option of what they would like to do next. Using strcmp I make the program decide what function to execute next.… Read More C gives segmentation fault and a warning for two different lines. What can I do to solve this issue?

I wrote a code to reverse a string using recursion. When I run it, I get a segmentation error. #include <stdio.h> void _print_rev_recursion(char *s); int main() { _print_rev_recursion("string reversal"); return (0); } void _print_rev_recursion(char *s) { if (!*s) return; _print_rev_recursion(s++); putchar(*s); } When I changed s++ to s + 1, the code works. I thought… Read More Difference between ptr++ and ptr + 1

I have a function what creates a vector, does somthing with it and then return it as an rvalue using std::move. When I am assigning it to a variable, I’m expecting to call std::vector‘s move constructor std::vector::vector(vector&&). But I’m getting a segmentation fault. Here’s my code: #include <iostream> #include <vector> std::vector<int>&& getVector(int start) { auto… Read More C++ returning an rvalue doesn't work and segfault

I’m trying to transform a vector of strings to a vector of pairs of strings, and I was getting segfault. I’ve tried to narrow it down to a simple test case (below), and I’m sure it’s likely to do with the memory allocation: #include <string> #include <vector> #include <utility> std::pair<std::string, std::string> newP( const std::string& foo)… Read More std::pair returned by std::transform resulting in segfault

I tried to figure out why I always get a segmentation fault in my program which is part of an exercise, number 4-10, in The C Programming Language book of K&R. I’ve implemented every function as it was teached by the book itself. I want to stick as much to it as possible. Could anyone… Read More K&R Exercise 4-10: Segmentation fault while implementing getline

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?