Your only problem is that you didn’t initialize temperature, celsius, or farenheit. When making your variables here: double celsius,fahrenheit,temperature,inFahrenheit,inCelsius;, you need to make temperature equal to something, say 20. I would recommend to take out the ints celsius and farenheit, or set them equal to the doubles Celsius and Farenheit, that you set equal to … Read more
#include <stddef.h> for size_t (C) #include <cstddef> for std::size_t (C++) cstddef also defines size_t in the global namespace, although it is not guaranteed by the C++ standard.
If what you posted is your whole class, you’re missing a curly brace. Exactly as the error message says. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class Default2 : System.Web.UI.Page { protected void gettickvalue(object sender, EventArgs e) { Random RandomNumber = new Random(); int n = RandomNumber.Next(1, 9); … Read more
E:\try\main.cpp|26|error: ‘student’ was not declared in this scope| It means just what it says: you refer to student on line 26 as though it were a type, and it’s not. There is a struct Student, but that’s not the same thing. C++ is case sensitive. Per the comments, you should edit your question to be … Read more
Your code has several issues, not only one: 1. You use the wrong format specifier %c to catch a single character instead of %s to catch a string: char arr[23]; printf(“Enter your name: \n”);` scanf(“%c”,&arr[i]); Rather use scanf(“%s”,arr); or even better scanf(“%Ns”,arr); where N stands for the maximum number of characters to be entered. Note … Read more
You can avoid a circular include problem by using a forward declaration of a class instead of an #include: #ifndef ENTRANCE_H #define ENTRANCE_H #include <vector> #include “Diodio.h” class Segment; class Entrance { public: Entrance(); ~Entrance(); void operate(); protected: Segment *givesEntryTo; std::vector<Diodio> elBooths; std::vector<Diodio> manBooths; private: }; #endif // ENTRANCE_H (Entrance.cpp may or may not need … Read more
The compiler is saying that comparing an unsigned variable against a signed variable is –not allowed considered bad practice. This is because of two’s complement representation of a signed variable. (unsigned short) 0xFFFF is 65535, and (short) 0xFFFF is -1. They both have same the in-memory representation but mean totally opposite things. So the compiler … Read more
You haven’t defined main() function in your program. As said in error: (.text+0x20): undefined reference to `main’ PS: This is not crash of g++, it just shows error message when can’t find definition of main().
You have to return from this function a pointer to pointer to float. But you return now just first value. float** createMatrix( int N ) { int i,j; float **matrix; matrix = new float*[N]; if (matrix == NULL) { free(matrix); return 0; } for (i=0; i<N; i++) matrix[i] = new float[N]; for(i=0; i<N;i++) for(j=0; j<N;j++) … Read more