.DT
operators
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operators

These are the operators availailable in LPC. They are listed in the
order or precedence (low priority first):

expr1 , expr2    Evaluate 'expr1' and then 'expr2'. The returned value is
        the result of 'expr2'. The returned value of 'expr1' is thrown
        away.

var = expr    Evaluate 'expr', and assign the value to 'var'. The new value
        of 'var' is the result.

var += expr    Assign the value of 'expr' + 'var' to 'var'. This is
        equivalente to "var = var + expr".

var -= expr    Similar to '+=' above.
var &= expr
var |= expr
var ^= expr
var <<= expr
var >>= expr
var *= expr
var %= expr
var /= expr

expr1 || expr2    The result is true if 'expr1' or 'expr2' is true. 'expr2' is
        not evaluated if 'expr1' was true.

expr1 && expr2    The result is true i 'expr1' and 'expr2' is true. 'expr2' is
        not evaluated if 'expr1' was false.

expr1 | expr2    The result is the bitwise or of 'expr1' and 'expr2'.

expr1 ^ expr2    The result is the bitwise xor of 'expr1' and 'expr2'.

expr1 & expr2    The result is the bitwise and of 'expr1' and 'expr2'.

expr1 == expr2    Compare values. Valid for strings and numbers.

expr1 != expr1    Compare values. Valid for strings and numbers.

expr1 > expr2    Valid for strings and numbers.

expr1 >= expr2    Valid for strings and numbers.

expr1 < expr2    Valid for strings and numbers.

expr1 <= expr2    Valid for strings and numbers.

expr1 << expr2    Shift 'expr1' left 'expr2' bits.

expr1 >> expr2    Shift 'expr1' right 'expr2' bits.

expr1 + expr2    Add 'expr1' and 'expr2'. If numbers, then arithmetic addition
        is used. If one of the expressions are a string, then that
        string is concatenated with the other value.

expr1 - expr2    Subtract 'expr2' from 'expr1'. Only valid for numeric values.

expr1 * expr2    Multiply 'expr1' with 'expr2'.

expr1 % expr2    The modulo operator of numeric arguments.

expr1 / expr2    Integer division.

++ var        Icrement the value of variable 'var', and return the new
        value.

-- var        Decrement the value of variable 'var', and return the new
        value.

- var        Compute the negative value of 'var'.

! var        Compute the logical 'not' of an integer.

~ var        The boolean 'not' of an integer.

var++        Increment the value of variable 'var', and return the old
        value.

var--        Decrement the value of variable 'var', and return the old
        value.

expr1[expr2]    The array given by 'expr1' is indexed by 'expr2'.

expr1->name(...) 'expr1' gives either an object or a string which is converted
        to an object, and calls the function 'name' in this object.


