If the string to be copied has more than 10 letters, strcpy cannot copy this string into the string ‘myname’. This is because string ‘myname’ is declared to be of size 10 characters only.In the above program, string “nodalo” is copied in myname and is printed on output screen. strdup function: duplicates a string to a location that will be decided by the function itself. Function will copy the contents of string to certain memory location and returns the address to that location. ‘strdup’ sounds like short form of “string duplicate” Syntax: strdup (const char *s); strdup returns a pointer to a character or base address of an array. Function returns address of the memory location where the string has been copied. In case free space could not be created then it returns a null pointer. Both strcpy and strdup functions are present in header file <string.h>
C
Topic: Strings
What is the difference between the functions strdup and strcpy in C?
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What will be output when you will execute following c code?
#include<stdio.h>
void main(){
char arr[7]="Network";
printf("%s",arr);
}
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What will be the output of the program ?
#include<stdio.h>#include<string.h>
int main(){ char str1[20] = "Hello", str2[20] = " World"; printf("%sn", strcpy(str2, strcat(str1, str2)));
return 0;
}
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