Quick Summary C++/CLI Basics

• Data Types

• Controls

• Arrays

• In-class assignments

Namespacesnamespace MyNamespace{

// ….

}

MyNamespace::func1()

using namespace OtherNamespace;

Comments: //

/* xxxx */

Basic Data Types

• Type

• Range

• Literals/constants and variables

• Operators and expressions

• Assignment

• Input and output

Primitive Data Types in C++/CLI• Integer:

– Int16 (short); UInt16 (unsinged short)

– Int32 (int or long); UInt32(unsigned int or long)

– Int64 (long long); UInt64(unsigned long long, _int64) int x, y(1), z = 123; (signed, 32 bits)

int x = y = z = 200;

Console::WriteLine(0x10);

Console::WriteLine(-0x10); // negative hex 10 is base-10 -16

• Floating:– Single (float, 32bits)

– Double (double, 64bits)

Primitive Data Types in C++/CLI• Boolean (bool, true or false)

• Character (Char, 16bits, unsigned unicode)– Character and escape sequence

char a = ‘A’; // character ‘A’

Char b = L‘A’; // unicode ‘A’

Char c = L‘\x0041’; // hex 41 is ASCII ‘A’

char d = ‘\t’; // tab escape

Char e = L‘\\’; // unicode backslash escape

Handles vs PointersHandle: safe code

• Handle: ^

• Reference data in managed heap (CLR offers memory management)

• Handle’s address can not be manipulated (no add or subtract offsets to it

• Return from gcnew after creating an instance of a reference type object in managed heap

Pointer: unsafe code

• Pointer: *

• Reference data in C Run-Time heap, need to handle memory management yourself

• pointer’s address can be manipulated

• Return from new after creating an instance of a reference type object in CRT heap

Operators, Expressions and Assignments, Precedence and

Associativity

• Arithmetic Operators• Unary Operators• Bitwise and Shift Operators• Relational Operators• Logical Operators• Ternary Operator

Quick Summary C++/CLI Basics

• Data Types

• Controls

• Arrays

• In-class assignments

Control Structures• Structured Programming

• Selection– if– if else– switch(break)

• Repetition (break, continue)– while– do … while– for

break & continueint sum=0;

for (int i=1; i<=10; i++) {

if (i%5==0) continue;

sum += i; // sum = sum+i;

}

int sum=0;

for (int i=1; i<=10; i++) {

if (i%5==0) break;

sum += i; // sum = sum+i;

}

Quick Summary C++/CLI Basics

• Data Types

• Controls

• Arrays

• In-class assignments

Arrays

• Arrays– One dimensional array– Two or multiple dimensional array

Array in C++/CLI• Array, element, index(or subscript)• array<int> ^ a = gcnew array<int>(12);• array<int> ^ a = {31, 28, 31, 30, 31, 30,

31, 31, 30, 31, 30, 31};• a[0], a[1],…, and a[11]• a->Length• array<String ^> ^d = {“Sun”, “Mon”, “Tue”,

“Wed”, “Thu”, “Fri”, “Sat”};• int main(array<System::String ^> ^args) {}

Array in C++/CLI• Multi-dimensional Array• array<int, 2> ^ b = gcnew array<int, 2>(4,3);• array<int, 2> ^ b = {{1, 2, 3}, {4, 5, 6},

{7, 8, 9}, {0, 1, 2}};• b[0,0], b[0,1],…, b[3,2];• b->Rank, b->GetLength(0), b->GetLength(1)

Quick Summary C++ for .NET

• Data Types

• Controls

• Arrays

• In-class assignments– Control– Array