fight between me and c

8/3/2019 Fight Between Me and C

1/14

Small fightBetween me and C


2/14

#include #include int main (){int i = 20; ; ; ; // no matter how many semicolons printf ( "%d" , i );getch();}

Rohit:Semicolon!!!! is completely waste thing


3/14

#include ;;;#include int main (){;;; int i = 20;printf ( "%d" , i );getch();} ;;;

Rohit:Semicolon!!!! is really of no use

Semicolon: dont call me like thisI am statement terminatorRohit:yeah, I understandSo, in the above program,you are terminating the main


4/14

int fun ( int i ) {

printf ( "%d", i );}int main (){fun ( 2 );}

I am parameterNo, I am argumentNo way, I am parameter.

Ok we are bros.Nooooo, go away dont call mebroI am parameter

Rohit:Again stupid fightyes, i is parameter and 2 is argument


5/14

int main () {int i = 100, j = 200;printf ( "%d %d" );

getch ();}Guess the output:a) garbage garbageb) 200 100

Rohit:Both a and b are righta in Devb in TC


6/14

Array: I provide you so many optionsto simplify programming like: arr[2] or 2[arr]Rohit: ohh but why arr[-2] != -2[arr]

Macro: You can declare me any where in ur programint main (){#include printf ( "Hello" );getch ();}Rohit: okk..so, TC is ur personal friendbcz above code never worked with DEV !!!


7/14

int main (){

int i=10;int j = 20;int *p;p = &i;*p++ = j; // no error++*p = j; // error getch ();

}


8/14

int main (){void *v;int i=10;int *j;v=&i;

i=*(int*)v; // should castj = v; // no needgetch ();}

Void *: Hi, I am void *, my nick name is void pointer,I provide you many facilities for generic programmingBut you should typecast me before u useRohit: Okk, I agree with you

but why you apply this rule for general variablesnot to pointersok I got it you have BHAICHARAwith pointers


9/14

UDV: I provide you the facility of creating your own typeslike: struct, union, enumRohit: But why you do the partiality with in your familystruct and enum can be blanks, but enum cant

struct a {};

union b {};enum c { //error};int main (){getch ();}


10/14

typedef: I allow programmersto change name of types,which simplify programming!

typedef char * a;const a b; => b is constantconst char * b => *b is constant

Rohit: simplify in whatsense. It actually makedifficult


11/14

main(): I am main(), I am starting point of your programRohit: Welcome, I was desperately waiting for youeveryone, please look at the main(),main(): Oh, please dont stare me

Rohit: no, no I was just thinking.. If you are the startingpoint, what about pragma startup and end ;)main(): no, but I care for them I am the actual functionand I also allow you to have argumentsRohit: ok and you are not sure yourself,

how many arguments?main(): They are always three arguments..Rohit: But I did never use 3 argumentsmain(): But you shouldRohit: But why your arguments are modifiable?


12/14

sizeof(): Hi,I allow you to know size of any variable/datatypeRohit: Seriously, I am fed up of you, you better move outsizeof(): infact, I am really helpfulRohit: I said move out, otherwise.Achcha nhn hoga

sizeof(): what otherwise what can you doRohit: I will show all your statements to publicsizeof(): ok, lets see I was always right, you are wrong..Rohit: ok.. Lets see what others have to say:Hello, every one I will show you some statements,

you have to tell.. Whether sizeof() is fair or unfairwith everyone


13/14

sizeof ( NULL ) => 4sizeof ( 'A' ) => 4 ( in C )sizeof ( 'A' ) => 1 ( in C++ )char ch;sizeof ( ch ) => 1sizeof ( near ) => 2 ( in TC )

sizeof ( near ) => error ( in GCC )int *b[3][4];sizeof (b) => 48sizeof (*b) => 16sizeof (**b) => 4int (*b)[3][4];sizeof (b) => 4

sizeof (*b) => 48sizeof (**b) => 16char *s;sizeof ( s ) => 4sizeof ( *s ) => 1


14/14

Thank YouRohit [email protected]://go.to/RohitBirlaSoftwaresAll the contents are taken from internet, or from various books. However all the content is tested, butstill author takes no responsibility for the content. Information here is being presented just for yourreference. This presentation is free of cost, you can use it and distribute it, however you cant charge forit except for distribution charges.

fight between me and c

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