2. Language elements

Language elements consist of reserved words, operators, variables, constants, comments, and punctuation. The combination of these form the syntax of the program.

2.1. Characters

The characters that can be used in the syntax of the language.

• abcdefghijklmnopqrstu vwxyz
• ABCDEFGHIJKLMNOPQRSTU VWXYZ
• 0 1 2 3 4 5 6 7 8 9
• + - * / = ( ) { } [ ] < > ' ” ! @ - / ^ & % _ : . , ; ? |
• Space and tab

With the combination of characters can be the identifiers that represent the names of variables, constants, etc.. These must begin with a lowercase letter, uppercase or low emphasis. The length can be from one to several characters, not allowing blank spaces or special characters. To remove a handle formed by two words you can use the low bar.

N, i, con
K456, var45
Dato_entrada, precio_producto

The c + + is sensitive to capital letters so that two equal names in upper or lower case are different.

Consigna is different consigna

2.2. Reserved Words

asm       and      and_eq
auto      bitand   bitor
bool      break    case
catch     char     class
compl     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      not
not_eq    operator or
or_eq     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
xor       xor_eq