You are here:   HomeC Programming (Theory)Control Structures in CWrite a C program to find HCF (GCD) between two numbers.
by Dinesh Thakur Category: Control Structures

C has GOTO statement but one must ensure not to use too much of goto statement in their program because its functionality is limited and it is only recommended as a last resort if structured solutions are much more complicated. First let us see what the goto statement does, its syntax and functionality. The goto is a unconditional branching statement used to transfer control of the program from one statement to another.

Syntax of goto statement is:

goto       namel;
………….. ………….
…………. ………….
…………. ………….
name1:
Statement;



Here in the goto the name1 mentioned identify the place where the branch is to be made. The name1 is a valid variable name followed by a colon. The name1 is placed immediately before the statement where the control is to be transformed. A program may contain several goto statements that transferred to the same place when a program in which case the names mentioned in goto must be unique for branching.

 

Control can be transferred out of or within a compound statement, and control can be transferred to the beginning of a compound statement. However the control cannot be transferred into a compound statement.

 

Thus one must take care not to use too much of goto statements in their program or in other words use it only when needed. This is because C being a highly structured language one must take care not to use too much of these unconditional goto branching statements which makes the program a poor way of coding.

 

The goto statement is discouraged in C, because it alters the sequential flow of logic that is the characteristic of C language. This word is redundant in C and encourages poor programming style.

 



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About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to contact us.



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