Hi, i bought a book about C and now im in chapter 6, theyre explaing stuff about Pre-incrementoperators and post-increment operators, but i dont really understand what they do. Please help me!
Hi, i bought a book about C and now im in chapter 6, theyre explaing stuff about Pre-incrementoperators and post-increment operators, but i dont really understand what they do. Please help me!
It just changes when the increment occours...If the line has ++x, then x is incremented before the line is evaluated. If the line has x++, then the line is evaluated before x is evaluated.Code:#include <stdio.h> int main () { int x = 3; printf ("%d x\n", x); // Prints 3 printf ("%d x++\n", x++); // Prints 3 again, then increments x to 4... printf ("%d x\n", x); // x is now 4, so prints 4. printf ("%d ++x\n", ++x); // Increments x to 5, then prints x (5) printf ("%d x\n", x); // x is now 5, so prints 5 return 0; }
Callou collei we'll code the way
Of prime numbers and pings!
Very elegant explanation there, QC! Kudos!
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
What???