195206/we-do-not-use-c-exceptions-what-s-the-alternative-let-it-crash
In C++, I developed a simple application that requested the user to enter a number and then a string. Surprisingly, when I ran the application, it never paused to ask for the string. It simply ignored it. After conducting some research on StackOverflow, I discovered that I needed to include the following line: cin.ignore(256, '\n'); before the line with the string input That addressed the problem and allowed the software to run. My issue is why C++ need the cin.ignore() line, and how can I forecast when I will need to use it. Here's the software I created: #include <iostream> #include <string> using namespace std; int main() { ...READ MORE
I have C code like this: #include<stdio.h> int main() { ...READ MORE
Cons and advantages? How long does it ...READ MORE
I've never used it, but I'm curious ...READ MORE
I've been writing in C++ on and ...READ MORE
I may wish to run code that might throw an exception in my exception handler. Is the following C++ structure acceptable? Are there any drawbacks if so? try { // ... } catch (const ...READ MORE
There is a seemingly undocumented feature of setup that ...READ MORE
The ordered and unordered map containers (std::map and std::unordered map) are included in the standard library. The items in an ordered map are sorted by key, and insert and access are in O (log n). For ordered maps, the standard library often use red black trees. However, this is only an implementation detail. Insert and access are in O in an unordered map (1). It is simply another term for a hashtable. An illustration using (ordered) std::map: #include <map> #include <iostream> #include <cassert> int main(int argc, char ...READ MORE
It is part of a series. Replace pow() with the previous iteration's value. There is no need for code to call pow (). Pow(x, 5 * I - 1) and pow(-1, I - 1) may be formed since both have an int exponent dependent on the iterator I from the previous loop iteration. Example: Let f(x, i) = pow(x, 5 * i ...READ MORE
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