Standard Arithmetic Library Functions in C Programming Lunguage

symbols(operator) associativity/priority Precedence Table in C Programming Lunguage

Description		Operator	Associativity
Function expression		( )	Left to Right
Array Expression		[ ]	Left to Right
Structure operator		->	Left to Right
Structure operator		.	Left to Right
Unary minus		-	Right to left
Increment/Decrement		++ --	Right to Left
One’s compliment		~	Right to left
Negation		!	Right to Left
Address of		&	Right to left
Value of address		*	Right to left
Type cast		( type )	Right to left
Size in bytes		sizeof	Right to left
Multiplication		*	Left to right
Division		/	Left to right
Modulus		%	Left to right
Addition		+	Left to right
Subtraction		-	Left to right
Left shift		<<	Left to right
Right shift		>>	Left to right
Less than		<	Left to right
Less than or equal to		<=	Left to right
Greater than		>	Left to right
Greater than or equal to		>=	Left to right
Equal to		==	Left to right
Not equal to		!=	Left to right
Bitwise AND	&		Left to right
Bitwise exclusive OR	^		Left to right
Bitwise inclusive OR	|		Left to right
Logical AND	&&		Left to right
Logical OR	||		Left to right
Conditional	? :		Right to left
Assignment	=		Right to left
*= /= %=	Right to left
+= -= &=	Right to left
^= |=	Right to left
<<= >>=	Right to left
Comma	,		Right to left

Summary of More Linux Programming in C programming language

(a )Programs can communicate with the Linux OS using library functions.

(b ) The Linux OS communicates with a program by means of signals.

(c ) The interrupt signal (SIGINT) is sent by the kernel to our program when we press Ctrl + C.

(d ) A term signal (SIGTERM) is sent to the program when we use the kill command.

(e ) A process cannot handle an un-catchable signal.

(f ) The kill –SIGKILL variation of the kill command generates an un-catchable SIGKILL signal that terminates a process.

(g ) A process can block a signal or a set of signals using the sigprocmask( ) function.

(h ) Blocked signals are delivered to the process when the signals are unblocked.

(i ) A SIGSTOP signal is generated when we press Ctrl + Z.

(j ) A SIGSTOP signal is un-catchable signal.

(k ) A suspended process can be resumed using the fg command.

(l ) A process receives the SIGCONT signal when it resumes execution.

(m ) In GTK, the g_signal_connect( ) function can be used to connect a function with an event.