Posts with the tag C++:

C++ Programming Language Cheat Sheet

CPP Documentation is in progress..

How to Shutdown PC using C++ ?

If you want to shutdown your Windows PC from your C++ code, use this code snippet. #include <stdio.h> #include <stdlib.h> int main() { system("c:\\Windows\\system32\\shutdown /s"); return 0; } I hope this helps. Do you recommend reading this blog post? share it!

Why is n++ faster than n=n+1?

The answer is related to the old CISC cpu instructions and the way how C (or any programming language) is compiled to binary code. In almost every CISC CPU there is a special “add” instruction that is named INC (or DEC) and that instruction increments (or decrements) by 1 the value of a register (or memory). If you use another instruction for addition you have to add both operands you want to sum. That makes INC/DEC more efficient: They take less space (no space for operands). In CISC they execute faster (because you save time to load operands). The initial C compiler has been technically a simple 3 step macro processor on top of assembly so it was leaving this choice to the programmer.