C++ for Scientists - Technische Universität Dresden

30 CHAPTER 2. C++ BASICS
cast (type conversion) ( type ) expr
member selection object.∗ pointer to member
member selection pointer → ∗ pointer to member
multiply expr ∗ expr
divide expr / expr
modulo (remainder) expr % expr
add (plus) expr + expr
subtract (minus) expr − expr
shift left expr ≪ expr
shift right expr ≫ expr
less than expr < expr
less than or equal expr expr
greater than or equal expr >= expr
equal expr == expr
not equal expr != expr
bitwise AND expr & expr
bitwise exclusive OR (XOR) expr ˆ expr
bitwise inclusive OR expr | expr
logical AND expr && expr
logical OR expr || expr
conditional expression expr ? expr: expr
simple assignemt lvalue = expr
mulitply and assignemt lvalue ∗= expr
divide and assignemt lvalue /= expr
modulo and assignemt lvalue %= expr
add and assignemt lvalue += expr
subtract and assignemt lvalue −= expr
shift left and assignemt lvalue ≪= expr
shift right and assignemt lvalue ≫= expr
AND and assignemt lvalue &= expr
inclusive OR and assignemt lvalue |= expr
exclusive OR and assignemt lvalue ˆ= expr
throw exception throw expr
comma (sequencing) expr , expr
To see the operator precedences at one glance, use Table 2.13 on page 64. 8
2.3.7 Overloading
A very powerful aspect of C ++ is that the programmer can define operators for new types. This
will be explained in section ??. Operators of built-in types cannot be changed. New operators
cannot be added as in some other languages. If you redefine operators make sure that the
expected priority of the operation corresponds to the operator precedence. For instance, you
might have the idea using the L ATEX notation for exponentiation of matrices:
8 TODO: Associativity?