Study C++ from novice

Iostream,iostrstream

Virtual constructor,

Template,STL,

Pointer,reference.

C++ key words:
asm, auto, bool, break, case, catch, char, class, const, const_cast, continue, default, delete, do, double, dynamic_cast, else, enum, explicit, export, extern, false, float, for, friend, goto, if, inline, int, long, mutable, namespace, new, operator, private, protected, public, register, reinterpret_cast, return, short, signed, sizeof, static, static_cast, struct, switch, template, this, throw, true, try, typedef, typeid, typename, union, unsigned, using, virtual, void, volatile, wchar_t, while
Reserved words:
and, and_eq, bitand, bitor, compl, not, not_eq, or, or_eq, xor, xor_eq

Fundamental data type:

Name Description Size* Range*
char Character or small integer. 1byte signed: -128 to 127
unsigned: 0 to 255
short int (short) Short Integer. 2bytes signed: -32768 to 32767
unsigned: 0 to 65535
int Integer. 4bytes signed: -2147483648 to 2147483647
unsigned: 0 to 4294967295
long int (long) Long integer. 4bytes signed: -2147483648 to 2147483647
unsigned: 0 to 4294967295
bool Boolean value. It can take one of two values: true or false. 1byte true or false
float Floating point number. 4bytes 3.4e +/- 38 (7 digits)
double Double precision floating point number. 8bytes 1.7e +/- 308 (15 digits)
long double Long double precision floating point number. 8bytes 1.7e +/- 308 (15 digits)
wchar_t Wide character. 2bytes 1 wide character

Initialization of variables:
string mystring = "This is a string";
string mystring ("This is a string");//Constructor method.

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\" double quote (")
\? question mark (?)
\\ backslash (\)

 

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