Flashcards in Chapter 6 Deck (24)
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1
a function definition must include 1, 2, 3, 4
return type, name, parameter list, and body
2
fcn can send a value to part of program that executed it; is data type of value that's sent from fcn
return type
3
you give each fcn a descriptive __ (rules are same as for variables)
name
4
prgm can send data to a fcn; is a list of variables that holds values being passed to fcn
parameter list
5
set of statements that perform fcn's operation; enclosed in a set of braces
body
6
contains return type, fcn name, and parameter list; not terminated by semicolon
function header
7
fcn that doesn't return a value; simply performs statements
void function
8
name of fcn followed by a set of ()s and a semicolon; executes the fcn and is terminated by semicolon; return type is not listed; ()s are empty if data isn't being passed to fcn; may be used in control structures (loops, if statements, switch statements); after executing fcn, program returns to point of call
function call
9
looks sim to fcn header except there's a semicolon at the end; aka fcn declaration
function prototype
10
values sent into a function; aka actual
arguments
11
special variable that holds a value being passed into a fcn; aka formal
parameter
12
when a copy of an argument is passed to a fcn; fcn cannot change original argument
passed by value
13
causes fcn to immediately terminate and give control of program back to statement that called the function
return statement
14
fcn that returns a value back to statement that called it; can use this value any where you can use a regular value of same data type
value-returning fcn
15
named constant that is available to every function in a program; can't be changed during program's execution; typically used to represent unchanging values that are needed throughout a program
global constant
16
passed to parameter when actual argument is left out of function call, usually listed in fcn prototype; are literal values or constants with an = operator in front of them, appearing after the data types listed in a fcn prototype; are only used when argument is left out of a function call; must be defined last
default argument
17
allows access to original argument; any change made to the ___ variable are actually performed on variable for which it's an alias; can be used to allow a function to change a variable in another function; can only be done w/ variables
reference variable / passed by reference
18
when fcns have same name and dif parameter lists; convenient when there are sim functions that use a dif # of parameters or parameters of dif data types
overloaded functions
19
name of function and date types of fcn's parameter's in proper orderl used by C++ to distinguish it from other functions with the same name; does NOT include the fcn's return value
function signature
20
causes program to stop, regardless of which function contains the call; requires header file cstdlib; takes an integer arg (exit code you wish program to pass back to comp's OS and is smtms used outside of prgm to indicate whether program ended successfully or as result of failure
exit function
21
termination code that commonly represents an unsuccessful exit under current operating sys
EXIT_FAILURE
22
termination code that commonly represents a successful exit under current operating system
EXIT_SUCCESS
23
dummy function that's called instead of actual function it represents; usually displays a test message acknowledging that it was called and nothing more; allows you to concentrate your testing efforts on parts of program that call the fcn; allows you to det whether program is calling a fcn when you expect it to, and to confirm that valid values are being passed to function and that the return value is being handled properly; when this debugged, move on
stub
24
