Simple C++ examples

Computational Physics wiki (UCAM only) / C++ resources /

Simple C++ examples

http://www.inference.phy.cam.ac.uk/teaching/comput/C++/examples/AddTwoNumbers.shtml

What you want What it is called Examples output cout AddTwoNumbers.cc Hello.cc loops for HelloFor.cc ForStatistics.cc loops do .. while BiggestInt.cc loops while twoPower.cc (has never-ending loop) AddWhilePositive.cc input from user cin HelloIn.cc RandDemo2.cc twoPower.cc function FunctionFactorial.cc HexagonValue.cc RandDemo7.cc definition #define RandDemo2.cc pass by reference & SortReference.cc SortReference2.cc shared definitions #include (header file) RandDemo2.cc and rand.h conditional if / else HelloFor.cc RandDemo5.cc ? (ternary operator) RandDemo2.cc switch / case SwitchDemo.cc CalculatorSwitch.cc random random() (random integer between 0 and 231 RollDie.cc RandDemo5.cc RandDemo6.cc srandom() (initialize/seed the generator) RandDemo2.cc (seeds using time) RandDemo5.cc (user-supplied seed) input from command line argv, sscanf RandDemo4.cc convert string to int or long int sscanf RandDemo4.cc integer arithmetic unsigned int BiggestUnInt.cc power (xy) pow(x,y) twoPower.cc bit-shift (1<<i) BiggestUnInt2.cc Examine memory bit by bit & (bit mask) BitsOut.cc BiggestUnInt2.cc input from file ifstream, open, getline, close ReadFile.cc OpenFile.cc remember variables static StaticDemo.cc arrays float vector[3] ScalarProduct.cc char phone[11] CharacterArray.cc dynamically allocate memory for vectors/ arrays/ matrices int *a, new, delete ArrayDemo1.cc ArrayDemo2.cc ArrayDemo3.cc dynamically allocate double arrays/matrices double *a, new, delete ArrayDemo4.cc useful warnings when compiling makefile Makefile Classes class SimpleClass.cc rejects RandDemo3.cc convert between types cast, reinterpret_cast, static_cast CastDemo.cc (not yet finished)

AddTwoNumbers.cc (← right click this link to download this file) // AddTwoNumbers.cc // Computes the sum of two numbers inputed at the keyboard. #include <iostream> using namespace std; int main() { int a, b, total ; cout << "Input numbers to be added: " << endl; cin >> a >> b ; total = a + b ; cout << "The sum is " << total << endl; return 0; }

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