[Solved] Why is this segfaulting? Can someone explain the valgrind error?

[ad_1] Valgrind says that the illegal write is occurring at Address 0x6172676f72502074. If you look at that address as ASCII characters, it’s: argorP t, or converting from little endian: t Progra. This looks like part of one of your menu items, “9. Abort Program”. Maybe the bug is that menu_init() is writing past the end … Read more

[Solved] can’t extract data from a structure array c++ [closed]

[ad_1] This should look a bit more like a code intended for humans to read 🙂 #include<iostream> #include<string> using namespace std; int ncr; int me,n=0,u,y,l; char opt1,opt2,opt3,opt4; struct student { string Name; int DoB; int Age; string Address; string Course[5]; char grade[5]; }; void add(); void remove(); void update(); void search(); int main() { int … Read more

[Solved] vector definition in struct (c++)

[ad_1] The problem are as followings: (corrected in OP question) myVector is defined const myVector.push_back(1); is not in any function body. (corrected in OP question) Value passed to myVector.push_back(1); is int but vector is of type string Change it as following. See example program working here: #include “string” #include “vector” #include “iostream” using namespace std; … Read more

[Solved] C++ Storing constant varibale names within a vector [closed]

[ad_1] Simply use a new local variable inside your reading loop like this: while(stream >> token) { if(token == “#define”) { constantVariable addconstant; stream >> token; addconstant.constantName = token; stream >> token; addconstant.constantValue = token; constant.push_back(addconstant); } } But take care with checking the input stream. It should not be done as easy as you … Read more

[Solved] Index slice within Main func when using setGrade()

[ad_1] There’s no built-in method what you’re looking for (merging slices). However, you can use append method like: s.setGrade(append([]int{80}, s.Grade[1:]…)) If you had to update two grade ints then you could have done: s.setGrade(append([]int{80,95}, s.Grade[2:]…)) 1 [ad_2] solved Index slice within Main func when using setGrade()

[Solved] Index slice within Main func when using setGrade()

Introduction [ad_1] Index slice within Main func when using setGrade() is a common problem encountered when working with arrays in programming. It can be solved by using a combination of indexing and slicing techniques. Indexing is used to access individual elements of an array, while slicing is used to access a range of elements. By … Read more

[Solved] Trying to make sense of C++ Struct

[ad_1] all I want to know is what the Store() and ~Store() parts do They are declaring the struct’s constructor and destructor, respectively. what the point of the public: part is in the struct To declare them as publically accessible so outside code can call them. and also what the part in f.cpp actually does … Read more

[Solved] Trying to make sense of C++ Struct

Introduction [ad_1] C++ Structs are a powerful tool for organizing data in a program. They allow you to store multiple pieces of related information in a single object, making it easier to access and manipulate. However, understanding how to use Structs can be confusing for beginners. This article will provide an overview of Structs and … Read more

[Solved] compile errors when trying to use struct in c

[ad_1] struct player only contains name and col. It doesn’t contain a BOOLEAN member. You could add such a member to it and have that member indicate whether the player is current. However that would be a bad design (because it is tedious to code and there are better options). Instead, have another variable that … Read more

[Solved] Sorting elements in struct in C++ [duplicate]

[ad_1] I’ll just give you some consecutive tips: Create std::vector and push you data into: vector<properties> students; Write the function which compares two structures and returns the comparison result. Don’t make it a member of your structure. Notice that I’ve renamed it: bool less_than(properties const& first, properties const& second) //my fault. Compiler is trying to … Read more

[Solved] How to access struct’s instance fields from a function?

[ad_1] Here is one example: package main import ( “fmt” ) // example struct type Graph struct { nodes []int adjList map[int][]int } func New() *Graph { g := new(Graph) g.adjList = make(map[int][]int) return g } func main() { aGraph := New() aGraph.nodes = []int {1,2,3} aGraph.adjList[0] = []int{1990,1991,1992} aGraph.adjList[1] = []int{1890,1891,1892} aGraph.adjList[2] = []int{1890,1891,1892} … Read more