Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
strchr() function in C++ and its applications
In this article, we will be discussing the working, syntax, and examples of strchr() function in C++ STL.
What is strchr()?
strchr() function is an inbuilt function in C++ STL, which is defined in the <cstring> header file. strchr() function is used to find when the character first occurred in the string. This function returns the pointer to the location where the character first appeared in the string.
If the character doesn’t exist in the string the function returns the null pointer.
Syntax
char* strchr( char* str, char charac );
Parameters
The function accepts the following parameter(s)−
str − It is the string in which we have to look for the character.
charac − It is the character that we want to search in the string str.
Return value
This function returns a pointer to the location where the character first appeared in the string. If the character is not found it returns the null pointer.
Input −
char str[] = "Tutorials Point"; char ch = ‘u’;
Output − u is present in the string.
Example
#include <iostream>
#include <cstring>
using namespace std;
int main(){
char str[] = "Tutorials Point";
char ch_1 = 'b', ch_2 = 'T';
if (strchr(str, ch_1) != NULL)
cout << ch_1 << " " << "is present in string" << endl;
else
cout << ch_1 << " " << "is not present in string" << endl;
if (strchr(str, ch_2) != NULL)
cout << ch_2 << " " << "is present in string" << endl;
else
cout << ch_2 << " " << "is not present in string" << endl;
return 0;
}Output
b is not present in string T is present in string
Example
#include <iostream>
#include <cstring>
using namespace std;
int main(){
char str[] = "Tutorials Point";
char str_2[] = " is a learning portal";
char ch_1 = 'b', ch_2 = 'T';
if (strchr(str, ch_1) != NULL){
cout << ch_1 << " " << "is present in string" << endl;
}
else{
cout << ch_1 << " " << "is not present in string" << endl;
}
if (strchr(str, ch_2) != NULL){
cout << ch_2 << " " << "is present in string" << endl;
strcat(str, str_2);
cout<<"String after concatenation is : "<<str;
}
else{
cout << ch_2 <<" " << "is not present in string" << endl;
}
return 0;
}Output
b is not present in string T is present in string String after concatenation is : Tutorials Point is a learning portal
2K+ Views
