[ad_1] It practically is operating system specific, since the C++11 (or C++14 or C++17) standard don’t offer any such facilities (the only standardized way of getting input being C++ streams such as std::istream or C stdio files à la FILE*). You probably need some external libraries. On Linux or POSIX systems, consider (for a terminal … Read more
[ad_1] Multpile definition of a header declared variable This is already a violation of the One Definition Rule. The simple answer is “don’t”. You can only declare in a header, via extern, and define in a single .cpp file. 2 [ad_2] solved Multpile definition error of a header declared variable when there’s just one definition/declaration … Read more
[ad_1] OK, so assuming you want to store the results in c, with dims 256, 50, do something like: for(int i = 0; i < 256; ++i) for(int j = 0; j < 55; ++j) { c[i][j] = compute_correlation(matrixA, i, matrixB, j); } with compute_correlation a simple for loop that will compute the value according … Read more
[ad_1] There are several problems with your code You have a return statement with no value within a function that is defined as returning type int Your function is a recursive one yet you are using a static variable that will live through invocations, making the output invalid with multiple function calls You are not … Read more
[ad_1] I have three cpp file.I want test that template class declaration and definition in different file.but i got failed [duplicate] [ad_2] solved I have three cpp file.I want test that template class declaration and definition in different file.but i got failed [duplicate]
[ad_1] The reason is suspected conio.h and other outdated headers is this. #include<stdio.h> #include <stdlib.h> // #include<conio.h> #include<string.h> char* strrev(char *str) { char *p1; int i, j; //puts(“Reversing”); //puts(str); p1 = (char*)malloc(strlen(str) * sizeof(char)); for( i = strlen(str)-1, j =0; i >=0; i–, j++) { p1[j] = str[i]; } p1[j] = ‘\0’; puts(p1); //puts(“Done”); return … Read more
[ad_1] There are many uses of ! operator in Linux. See this article. In your case, it is probably to check if the a command from history is given as input. See the first point of the article. [ad_2] solved ‘!’ in input buffer in comparison in if statement
[ad_1] Try using File.AppendText to append to the file: using (StreamWriter SaveFile = File.AppendText(sPath)) { SaveFile.WriteLine(“hello”); } [ad_2] solved save items of list box into text file
[ad_1] There are no objects here that I can see. You’re using C++ as “a better C”. It’s been a long time since I’ve written C or C++, but I think you want something more like this. I’ve taken the meat out of the main to emphasize my point: #include <iostream> #include <cmath> using namespace … Read more
[ad_1] In alphabetic order (or lexicographical order), you need to use the strcmp string function. Back to the main subject: the idea behind using the void pointer is to create generic code in C. Assuming you have an array of the type void *, you can assign values to it by simple doing a typecast. … Read more
[ad_1] You do not set a value to BST::root after creating obj_bst. Thus obj_bst.getBSTRoot() returns an invalid pointer on which you call setVal which causes a crash. [ad_2] solved Don’t understand the output of the given code [closed]
[ad_1] Not the same. If the argument changes after it’s passed (e.g. because it’s changed by another thread), the first version is unaffected because it has a copy. In the second variant, the function called may not change the argument itself, but it would be affected by changes to y. With threads, this might mean … Read more
[ad_1] One of the problem to cause undefined behavior is In void update_typeArray(char * char_array, int index, char input) you free the memory pointed by the __array_buffer using char_array. update_typeArray(__array_buffer, index, __char_buffer); free(char_array); and you allocate the new memory to char_array char_array = (char*)malloc(sizeof(char)*(index + 1));//+1 cause string but your __array_buffer will be still pointing … Read more
[ad_1] You can use LINQ’s OrderBy. You’ll need to import using System.Linq; Appoitments.OrderBy(a => a[0])); 0 [ad_2] solved Sorting of a list of list of integer
[ad_1] First you need an object representing the movie: public class Movie { public MOVIE_TYPE {get;set;} public string Title {get;set;} public int ID{get;set;} } In your main class you have to create a list containing the movie objects. The MOVIE_TYPES are indicating whether they are seen or not. 0 [ad_2] solved Trying to add an … Read more