strcat() and strncat() sample program in C++
By: Reema sen
Related to strcpy() and strncpy() are the standard functions strcat() and strncat(). The former concatenates one string to another; that is, it appends the string it takes as its second parameter to the end of the string it takes as its first parameter. strncat(), as you might expect, appends the first n characters of one string to the other. The sample program illustrates their use.
1: #include <iostream.h> 2: #include <string.h> 3: 4: 5: int main() 6: { 7: char stringOne[255]; 8: char stringTwo[255]; 9: 10: stringOne[0]='\0'; 11: stringTwo[0]='\0'; 12: 13: cout << "Enter a string: "; 14: cin.getline(stringOne,80); 15: 16: cout << "Enter a second string: "; 17: cin.getline(stringTwo,80); 18: 19: cout << "String One: " << stringOne << endl; 20: cout << "String Two: " << stringTwo << endl; 21: 22: strcat(stringOne," "); 23: strncat(stringOne,stringTwo,10); 24: 25: cout << "String One: " << stringOne << endl; 26: cout << "String Two: " << stringTwo << endl; 27: 28: return 0; 29: } Output: Enter a string: Oh beautiful Enter a second string: for spacious skies for amber waves of grain String One: Oh beautiful String Two: for spacious skies for amber waves of grain String One: Oh beautiful for spacio String Two: for spacious skies for amber waves of grain
Analysis: On lines 7 and 8, two
character arrays are created, and the user is prompted for two strings, which
are put into the two arrays.
A space is appended to stringOne on line 22, and on line 23, the first
ten characters of stringTwo are appended to stringOne. The
result is printed on lines 25 and 26.
Archived Comments
1. thank you for your good tutorial about string function.
because of that i present to my prof.
View Tutorial By: joy at 2010-08-10 04:06:20
2. can u give me the example simulation of strcat??
View Tutorial By: farah at 2009-10-05 01:10:02
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