Implementation of the System function C string (5): StrDup

StrDup does not need to allocate memory space, automatically implement the copy of the string

Char *mystrdup (char *str) {char*p = malloc (sizeof (char) * (strlen (str) + 1)); strcpy (P, str);//Copy return p;} /* Function Name: StrDup  : Copy the string to the new location using the  method: Char *strdup (char *str); *///strcpy variant void Main () {char str[14] = "rocket-night \ n" ; str[0] = ' R ';p rintf ("str=%s\n\n", str), char *p1 = Null;char *p2 = "Calc";p 1 = mystrdup (p2);p rintf ("p1=%s     p2=%s\n\n", P1, p2);p 1 = _strdup (str);p rintf ("p1=%s", p1); free (p1); System ("pause");

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Implementation of the System function C string (5): StrDup