[ad_1] Write a++,b–; Two expressions separated by a comma are evaluated left to right. 2 [ad_2] solved How to combine increment and decrement statements into one single statements [closed]
[ad_1] Regardless of whether the type of c is a reference type or a value type, when setting a variable c = something, you are overwriting whatever the variable referred to. So the original object that c referred to is no longer referenced. This does not change the list from updating its reference either though, … Read more
[ad_1] Variable names disappear as part of the compilation step(s) in C and C++. Typically, there are two scenarios that solve the type of problem you are describing: User input corresponds to specific variable name. You don’t actually want the “name” of the variable, but just need a way to associate different data with different … Read more
[ad_1] The problem is that in the DeckOfCards class, the deck vector is never added to, so it’s empty. In the constructor, assign newDeck to deck: deck = newDeck; There is also another problem in the constructor: You declare newDeck to contain 52 entries, but then you use push_back to add new entries to the … Read more
[ad_1] It turns out there is a general solution, which does not depend on word size, or even on two’s complement arithmetic. Here it is: int is_zero(int x) { unsigned y = x; unsigned c0 = y^y; unsigned c1 = ~(~c0 + ~c0); unsigned c1h = ~c0 ^ (~c0 >> c1); unsigned y2 = y … Read more
[ad_1] These: scanf(“%i”, y[i][j]); scanf(“%i”, d[i]); needs to be: scanf(“%i”, &y[i][j]); scanf(“%i”, &d[i]); as %i in the scanf expects an int*(address of the variable), not an int(value of the variable). Another problem is that you do division by zero here: inv[i][j] = co[i][j] / D; when D is zero. [ad_2] solved C programming code error
[ad_1] A few things. First name your functions sensible things, those names are gibberish and mean nothing to anyone on here. Second, you’re error is quite simple. The “Wolf” and “Animal” class do not need to re-declare “inicjatywa,” so long as they declare their inheritance of “Organizmy” to be public (as they have) the ‘outside … Read more
[ad_1] #include <ctime> int main() { time_t t = time(0); // current time: http://cplusplus.com/reference/clibrary/ctime/time/ struct tm * now = localtime(&t); // http://cplusplus.com/reference/clibrary/ctime/localtime/ // struct tm: http://cplusplus.com/reference/clibrary/ctime/tm/ int day = now->tm_mday; int month = now->tm_mon + 1; int year = now->tm_year + 1900; } Links from above time(0): current time: http://cplusplus.com/reference/clibrary/ctime/time/ localtime: http://cplusplus.com/reference/clibrary/ctime/localtime/ struct tm: http://cplusplus.com/reference/clibrary/ctime/tm/ … Read more
[ad_1] It is unclear what you want to achieve. Masking the low bits while keeping the sign bit is something you could do with a single mask on architectures where int is represented as sign / magnitude. It is quite unlikely that you would be thinking of this peculiar case. What is your goal then … Read more
[ad_1] public class MyClass { public string FirstProperty { get; set; } public int SecondProperty { get; set; } } Then: var myList = new List<MyClass> { new MyClass {SecondProperty = 1, FirstProperty = “ABC”}, new MyClass {SecondProperty = 2, FirstProperty = “ZXC”} }; comboBox1.DataSource = myList; comboBox1.ValueMember = “FirstProperty”; comboBox1.DisplayMember = “SecondProperty”; I hope … Read more
[ad_1] Add cout.flush() (or std::endl which implicitly flushes) after each cout statement. cout uses buffered output, using cout.flush() will clear the buffer and force the contents being written out. Thanks πάντα ῥεῖ for guidance [ad_2] solved cout not working in c++ after taking line input (getline)
[ad_1] if((x2=100)&&(y2==500)) check the equal sign shouldn’t be ==? [ad_2] solved Proggraming C++ and DirectX
[ad_1] It seems it was some trouble within eclipse. I right clicked one of those functions, selected Source->Add includes and it solved the problem (but didn’t added any header). I hope this can be helpful for someone else [ad_2] solved C Implicit declaration differs from internal function declaration
[ad_1] There are many issues with your code. The following code may do what you want. You should study it and try to improve it. One such improvement could be the use of std::vector as opposed to arrays. This will mean you can avoid manual memory management (new/delete) and therefore achieve the ideal of not … Read more
[ad_1] The API is confusing: What is namelen ? is it the length of the initial prefix of name that is the name of the student? In this case you should allocate one extra byte for the null terminator and copy the name appropriately. is it the maximum length for the student name? Again if … Read more