How can a function return a pointer to its calling routine, Computer Engineering

Assignment Help:

How can a function return a pointer to its calling routine?

The general form of a function is:

type_specifier function_name(parameter list)

{

body of function;

}

where type_specifier specifies the type of value that the function's return statement returns and the parameter list is a comma-separated list of variable names and types which receive the values of the arguments passed by the call to the function. The purpose of most functions is to either perform a computation and return a value, manipulate information and return a success-or-failure (true or false) value, or perform a strictly procedural routine which produces no value (eg, the exit() function). Functions may be declared to return any valid C data type. If the  return  type  is  not  specified,  it  automatically  defaults  to  type  int.  return  causes  an immediate exit from a function. It may also be used to return a value. All functions, except those of type void, return a value.

Functions that return pointers are handled just like any other type of function, e.g.:

char * match(char c, char *s)

{

while(c != *s && *s)

s++;

return(s);


Related Discussions:- How can a function return a pointer to its calling routine

What are the advantages of a smart card, What are the advantages of a Smart...

What are the advantages of a Smart Card? Advantages of Smart Card as given below: a. This provides convenience and assists for multiple currencies over borders. b. Us

Show how pages will be allocated using first-in-first-out, Consider the fol...

Consider the following page reference and reference time strings for a program: Page reference string: 5,4,3,2,1,4,3,5,4,3,2,1,5,..... Show how pages will be allocated using t

What is java swing, Swing is a GUI toolkit for Java. It is one kind of the ...

Swing is a GUI toolkit for Java. It is one kind of the Java Foundation Classes (JFC). Swing haves graphical user interface (GUI) widgets such as text boxes, buttons, split-panes, a

What is gustafsons law, Q. What is Gustafsons Law? Amdahl's law is app...

Q. What is Gustafsons Law? Amdahl's law is appropriate for applications where response time is significant. On the other hand there are numerous applications that necessitate

Types of reasoning - first-order logic, Types of reasoning - First-order lo...

Types of reasoning - First-order logic: Atleast five types of reasoning can be acknowledged here. • Firstly, why and how do we will think for the killer usually left a silk

Environments -artificial intelligence, Environments: We have seen that...

Environments: We have seen that an agents intelligent should take into account certain information when it choose a rational action, including information from its sensors, in

Design a memory buffer of limited size, Extend task 1 so that it now suppor...

Extend task 1 so that it now supports a memory buffer of limited size. Provide the same functionality as task 1 except now make the server work with a limited buffer size. Like

Basic of C, write algorithm and draw flowchart for exchange the values of t...

write algorithm and draw flowchart for exchange the values of two variables.

Uniform memory access model (uma), Uniform Memory Access Model (UMA) In...

Uniform Memory Access Model (UMA) In this model, the main memory is uniformly shared by all processors in multiprocessor systems and each processor has equal access time to sha

Parallel virtual machine, PVM is mainly a simulation of a computer machine ...

PVM is mainly a simulation of a computer machine running parallel programs. It is a software package that allows a heterogeneous collection of UNIX and/or Windows computers hooked

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd