Linked Questions

I'm trying to compare two class objects, which has both been initialized with 0.0, but for some reason C++ decides to convert the 0.0 to some extremly small value instead of keeping the 0.0, which ...

The core idea of this is just to have a array of integers and change the value of them based on teminal inputs. This is my very first project and everything seems to be in order but it does not work, ...

so the 3rd function calls on the read_integer(prompt) from the int read_integer(string prompt) above it, seen by the ***** marks, but I am not sure what to add so that this works. My attempt in the ...

The following code will segfault. char* input = "12.34"; //< this is only to simplify the example. char buffer[30] = { 0 }; memcpy(buffer, input, strlen(input)); char* part1 = strsep(&buffer,...

I'm using raylib to make a little game. and here is the problem. Struct Icon has Loc Struct that has two integer value. When i put the Struct, Icon as a Pointer into Icons vector. value has been ...

#include <iostream> using namespace std; string userInput, userName; The function below takes an input from the user string takeInput() { cin.ignore(); getline(cin,...

I'm told that the template system in C++ is Turing-complete at compile time. This is mentioned in this post and also on wikipedia. Can you provide a nontrivial example of a computation that exploits ...

I have a vector: std::vector<int> vec = {1, 2, 3}; And I want to make a reverse for loop. It works, when I write: for(int i = vec.size() - 1; i >= 0; --i) { std::cout << i << ...

I am trying to printf a simple string but I am not being able to. #include <stdio.h> int main(){ char *word; scanf("%s", &word); printf("%s\n", word); return ...

Sayeth the C++ standard: The point of declaration for a name is immediately after its complete declarator and before its initializer (if any)... [basic.scope.pdecl] That is, a variable is in scope, ...

#include<stdio.h> void main(){ printf("%f\n",5/9); // prints 0.000000 printf("%f\n",9.0/5.0); // prints 1.800000 printf("%f\n",5/9); // prints 1.799999 } ...

considering this code snippet #include <iostream> int foo() { int a; return a; } int main() { auto &&ret = std::move(foo()); std::cout << ret; } compile with ASAN g++ -...

clang, but NOT gcc, has a -Weverything option which appears to include things such as -Wpedantic. You can test it here: https://godbolt.org/z/qcYKd1. See the top-right of the window for where I have ...

I know that, if we declare variables inside a function without allocating memory for them, they will be lost after the function finishes its job. The following code prints: (null) 5 char* ...

can you help me with this code, i am able to copy arr into arr2(from index 1 and further, i cannot figure index 0 till now), but some others can't. Can you tell if anything's wrong here? #include <...