Download Basic Computer Programming in C and more Study notes Computer Programming in PDF only on Docsity!
=>Format specifier – represented by
Format Specifier Type
%c Character
%d Signed integer
%e or %E Scientific notation of floats
%f Float values
%g or %G Similar as %e or %E
%hi Signed integer (short)
%hu Unsigned Integer (short)
%i Unsigned integer
%l or %ld or %li Long
%lf Double
%Lf Long double
%lu Unsigned int or unsigned long
%lli or %lld Long long
%llu Unsigned long long
%o Octal representation
%p Pointer
%s String
%u Unsigned int
%x or %X Hexadecimal representation
%n Prints nothing
%% Prints % character
=> Addressof is represented by - &. => Operators :-
- != - Not equal 2.== - equal 3./ - division 4.% - remainder 5.> - greater than 6.< - less than 7.>= - greater than equal to 8.<= - less than equal to 9.& - bitwise and
- | -bitwise or
- ^ - bitwise xor (Converts to binary system) => Logical Operators
1.&& - AND operator 2.|| - OR operator X Y AND OR XOR 0 0 0 0 0 0 1 0 1 1 1 0 0 1 1 1 1 1 1 0 => Conditional operators ? - then : - else => If else Statement:- Syntax = if(Condition){ } Else{ } NOTE- LINE prints the line no. ( printf(“%d”, LINE); ) NOTE -
=>For Loop:- Syntax:- for (initialization; condition ; increment or decrement){ statement; statement; }
Output-
Function:-
Arrays **Note- int n = 6;
a[n]
is invalid location can be written as- &a[1] or (a + 1) the data can be accessed by- a[1] or *(a + 1)
Pointers
Scanf Syntax – scanf(“Format specifer”, variable);
Calloc function It creates dynamic memory in the heap.
gets(takes the variable of string)- It takes user input from keyboard of a line until the cursor moves to to next line. puts(takes thevariable of string)- It gives output of the input line given. strlen()-It return integer value of length of string given in parameter. strcpy(x,y)-It takes two parameters such that it copies the string from y to x. strcat(x, y)- It takes two Strings parameter and concatenates them like here it will return x + y. strcmp(x, y)- It takes two strings as parameter and compares them and return -1, 0 , 1 if x > y, x == y, x > y respectively. 2D array used to store multiple Strings
Defining Macros
