Inbuilt functions in cpp, C/C++ Programming

Assignment Help:

Inbuilt Functions

i).  Functions to manipulate strings

The cstring library defines many functions to perform some manipulation operations with C-styled functions. The following are some of these functions:

  • strcat: char* strcat (char* dest, const char* src); Appends src string at the end of dest string.
    Returns dest.
  • strcmp: int strcmp (const char* string1, const char* string2); Compares strings string1 and
    string2. Returns 0 is both strings are equal.
  • strcpy: char* strcpy (char* dest, const char* src); Copies the content of src to dest. Returns dest.
  • strlen: size_t strlen (const char* string); Returns the length of string.

ii). Converting strings to other types

Due to that a string may contain representations of other data types like numbers it might be useful to translate that content to a variable of a numeric type. The cstdlib library provides three useful functions for this purpose:

  • atoi: converts string to int type.
  • atol: converts string to long type.
  • atof: converts string to float type.

All of these functions accept one parameter and return a value of the requested type (int, long or float).  


Related Discussions:- Inbuilt functions in cpp

Control structures in cpp, C o n t r o l S t r u c t u r e s ...

C o n t r o l S t r u c t u r e s I t i s o f t h r e e t y p e s: 1 .    S e qu e n c e s t r u c t u r e 2 .

C language, WHAT IS A C LANGUAGE? C IS A PROGRAMMING?

WHAT IS A C LANGUAGE? C IS A PROGRAMMING?

Strings, A string S is said to be "Super ASCII", if it contains the charact...

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the asci

Padovan string, A Padovan string P(n) for a natural number n is defined as:...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concate program 1 : package test

Need a solution, Hello. I need a solution for this assignment. It is for C+...

Hello. I need a solution for this assignment. It is for C++ Language: Create a BusinessPartner class that contains a first name, company name, and a telephone number. Create a Con

Program for swapping the two integers, Program for Swapping the Two Integer...

Program for Swapping the Two Integers                 For example, Swapping the two value                                 int x=4,y=6,t;                                 t

Blanche has a fashion design company called BLB_Best_Clothin, Blanche has a...

Blanche has a fashion design company called BLB_Best_Clothing Pty. That she has just opened recently

Define procedure to return the sum of the odd elements, (a) Define a proced...

(a) Define a procedure (deep-member x e) that takes a list x and an element e and returns #t if the element e is in the list or in any lists that the list x contains. e.g., (dee

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