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// strdupAvecBug !!
#include <stdio.h>
#include <string.h>
#include <malloc.h>
char *strdup2(char *) ; // prototype
main()
{
char *t1 = "hello how are you ?" ;
char t2[20] ;
char *r ;
strcpy(t2, "TORTUE") ;
r = (char *) strdup(t1) ; // appel à la fonction existante
printf( "%s\n ", r );
printf( "%d\n ", strlen(r) );
r = ( char *) strdup(t2) ;
printf( "%s\n ", r );
printf( "%d\n ", strlen(r) );
// =========================
// and now the same thing with personal function strdup2 !!
printf( "%s\n ", "Resultats avec STRDUP2" );
r = strdup2(t1) ;
printf( "%s\n ", r );
printf( "%d\n ", strlen(r) );
r = strdup2(t2) ;
printf( "%s\n ", r );
printf( "%d\n ", strlen(r) );
}
char *strdup2(char *s)
{
char *r ;
int n = strlen(s);
r = (char* )malloc( (n + 1) * sizeof(char) );
while(*s)
{
*r = *s ;
r++;
s++;
}
*r='\0';
return r-n;
}