Category Archives: Technology
Another way to print hex value in C++
You can simply use the std::hex base format flag! This also works with oct and dec. #include <iostream> int main() { std::cout << "Value of 10 in hex: " << std::hex << 10 << std::endl; std::cout << "Value of 10 in dec: " << std::dec << 10 << std::endl; std::cout << "Value of 10 in […]
Pass a STL Array of fixed size as a parameter to another function without declaring the size in the function signature or prototype
There are two ways of doing this. You can either pass in a pointer/reference to the array along with it’s size to the function. #include <iostream> #include <array> void swap(int *arr, int a, int b) { auto t = arr[a]; arr[a] = arr[b]; arr[b] = t; } int partition(int *arr, int low, int high) { […]
Restrict date range within DatePicker component
So I had to restrict days in the WPF DatePicker component. Only the days falling within a specific range should be available for selection and all others (past & future values) should be disabled. The solution is to use the DisplayDateStart & DisplayDateEnd properties on the DatePicker <DatePicker Name="dtPicker" DisplayDateStart="5/10/2012" DisplayDateEnd="5/20/2012" />
Tags: c#, DatePicker, disable, DisplayDateEnd, DisplayDateStart, range, restrict, WPF
N-dimensional aka N-ary Tree
N-dimensional tree is used to represent the UI of any application. Buttons, ComboBoxes and various other components are assembled together in this data structure and then rendered on the screen. I had to enhance the design of a commercial Tree UI component (add improved searching features) and thought of creating my own n-ary Tree data […]
Achieving optimal performance in code
Is there any difference between the following two expressions\statements? def func1(a): return a == ‘TRUE’ def func2(a): return True if a == ‘TRUE’ else False Well, both of them do the same thing but interestingly, the former one is faster in terms of performance by atleast one CPU cycle! Let’s tear into assembly language of […]
Login