C programming Flashcards
Declaritive paradigm
describe the properties of what you want
imperative paradigm
describe how to construct what you
want
variable properties
type, storage classes
type
determines meaning of variable stored
storage class
determines scope and lifetime of value
2 storage classes
automatic
static
automatic
local to block {}
destroyed on exit from block
static
local to block or external to all blocks
- Storage class determined by:
- declaration context
- keywords auto and static
- Automatic storage class:
declared inside block
* use keyword auto (optional)
- Static storage class:
- declared inside block with keyword static
- declared outside all blocks
variable scope
determines which parts of a program can
access the variable i.e. where variable name is valid
local scope
accessible in a function only
global scope
accessible from anywhere in program
variable lifetime
how long variable has valid memory
automatic variables
only while execution in function
static variables
entire duration of program execution
operator arity
how many operands
unary-1
binary -2
ternary -3
