char *strcpy(s, t)
char *s, *t;
{
 char *p;
 p = s;
 while (*p++ = *t++);
 return s;
}

char *strncpy(s, t, n)
char *s, *t;
{
 char *p;
 p = s;
 while (n-- > 0) if (!(*p++ = *t++)) return s;
 *p = '\0';
 return s;
}

char *strcat(s, t)
char *s, *t;
{
 char *p;
 p = s;
 while (*p) p++;
 while (*p++ = *t++);
 return s;
}

char *strncat(s, t, n)
char *s, *t;
{
 char *p;
 p = s;
 while (*p) p++;
 while (n-- > 0) if (!(*p++ = *t++)) return s;
 *p = '\0';
 return s;
}

strcmp(s, t)
char *s, *t;
{
 while (*s == *t) { if (!*s++) return 0; t++; }
 return *s - *t;
}

strncmp(s, t, n)
char *s, *t;
{
 while (*s == *t) { if (!*s++ || --n <= 0) return 0; t++; }
 return *s - *t;
}

char *strchr(s, c)
char *s, c;
{
 while (*s != c) if (!*s++) return NULL;
 return s;
}

char *strrchr(s, c)
char *s, c;
{
 char *p;
 p = NULL;
 while (*s) { if (*s == c) p = s; s++; }
 return p;
}

strspn(s, t)
char *s, *t;
{
 int n;
 n = 0;
 while (*s) if (strchr(t, *s++) == NULL) return n; else n++;
 return n;
}

strcspn(s, t)
char *s, *t;
{
 int n;
 n = 0;
 while (*s) if (strchr(t, *s++) != NULL) return n; else n++;
 return n;
}

char *strpbrk(s, t)
char *s, *t;
{
 while (*s) { if (strchr(t, *s) != NULL) return s; s++; }
 return NULL;
}

char *strstr(s, t)
char *s, *t;
{
 int n;
 if ((n = strlen(t)) == 0) return s;
 while ((s = strchr(s, *t)) != NULL)
  if (memcmp(s, t, n) == 0) return s;
 return NULL;
}

strlen(s)
char *s;
{
 char *p;
 p = s;
 while (*p++);
 return p - s - 1;
}

char *strtok(s, t)
char *s, *t;
{

 if (s != NULL) p = s;
 if (!*p) return NULL;
 p += strspn(p, t);
 if (!*p) return NULL;
 s = p;
 p += strcspn(p, t);
 if (!*p) return s;
 *p++ = '\0';
 return s;
}

char *memcpy(s, t, n)
char *s, *t;
{
 static char *a, *b;
 static int i;
 a = s; b = t; i = n;
 inline(42, &b, 237, 91, &a, 237, 75, &i, 237, 176);
 return s;
}

char *memmove(s, t, n)
char *s, *t;
{
 move(s, t, n);
 return s;
}

memcmp(s, t, n)
char *s, *t;
{
 static char *a, *b;
 static int i;
 a = s; b = t; i = n;
 if (i <= 0) return 0;
 inline(42, &b, 237, 91, &a, 237, 75, &i, 26, 150, 32, 13, 26);
 inline(167, 40, 9, 11, 120, 177, 40, 4, 35, 19, 24, 239);
 inline(33, &i, 119, 48, 4, 35, 62, 255, 119);
 return i;
}

char *memchr(s, c, n)
char *s, c;
{
 static char *a, chr;
 static int i;
 a = s; chr = c; i = n;
 inline(42, &a, 58, &chr, 237, 75, &i, 237, 177, 40, 3, 33, 1);
 inline(0, 43, 34, &a);
 return a;
}

char *memset(s, c, n)
char *s, c;
{
 static char *a, chr;
 static int i;
 a = s; chr = c; i = n - 1;
 inline(42, &a, 237, 91, &a, 19, 237, 75, &i, 58, &chr, 119);
 inline(237, 176);
 return s;
}