C++ vs Pascal

AP Computer Science Workshop

C++ vs. Pascal

Types
int, double, char integer, real, char
(short, long, float)

apvector, apmatrix arrays

structs records

Definitions
char ch; ch : char;

int j, k=0; j, k : integer;

double x; x : real; ... k := 0;

apvector<int> a(100); a : array [0 . . 99] of integer;

Operators
+  -  *  /  % +  -  *  /  div  mod

= :=

&& , | | , ! and, or, not

< , <= , > , >= , == , != < , <= , > , >= , = , <>

+= , -= , *= , /= , ++ , --

Semicolon acts as
terminator separator

Compound statement
{} begin end

Selection
if ( <bool> )
      <stmt>;
else
      <stmt>;
if <bool> then
      <stmt>
else
      <stmt>

switch case

Loops
for (init; term; update) for lcv := init to/downto final do

while ( <bool> ) while <bool> do

do {
      } while ( <bool> );
repeat
      until <bool>

I/O
cout << x ; write(x);

cout << x << endl; writeln(x);

cin >> i; read(i);

Mark Stehlik, Carnegie Mellon University

Types
	int, double, char	integer, real, char (short, long, float)
	apvector, apmatrix	arrays
	structs	records

Definitions
	char ch;	ch : char;
	int j, k=0;	j, k : integer;
	double x;	x : real; ... k := 0;
	apvector<int> a(100);	a : array [0 . . 99] of integer;

Operators
	+ - * / %	+ - * / div mod
	=	:=
	&& , \| \| , !	and, or, not
	< , <= , > , >= , == , !=	< , <= , > , >= , = , <>
	+= , -= , *= , /= , ++ , --

Semicolon acts as
	terminator	separator

Compound statement
	{}	begin end

Selection
	if ( <bool> ) <stmt>; else <stmt>;	if <bool> then <stmt> else <stmt>

	switch	case

Loops
	for (init; term; update)	for lcv := init to/downto final do

	while ( <bool> )	while <bool> do

	do { } while ( <bool> );	repeat until <bool>

I/O
	cout << x ;	write(x);
	cout << x << endl;	writeln(x);
	cin >> i;	read(i);