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strdup() and strdndup() in C/C++
strdup()
The function strdup() is used to duplicate a string. It returns a pointer to null-terminated byte string.
Here is the syntax of strdup() in C language,
char *strdup(const char *string);
Here is an example of strdup() in C language,
Example
#include <stdio.h> #include<string.h> int main() { char *str = "Helloworld"; char *result; result = strdup(str); printf("The string : %s", result); return 0; }
Output
The string : Helloworld
strndup()
The function strndup works similar to the function strndup(). This function duplicates the string at most size bytes i.e. the given size in the function. It also returns a pointer to null-terminated byte string.
Here is the syntax of strndup() in C language,
char *strndup(const char *string , size_t size);
Here is an example of strndup() in C language,
Example
#include <stdio.h> #include<string.h> int main() { char *str = "Helloworld"; char *result; result = strndup(str, 3); printf("The string : %s", result); return 0; }
Output
The string : Hel
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