/*
 *-----------------------------------------------------------------------------
 *
 * string.c --
 *
 *    Implementation of various ISO C functions found in string.h.
 *
 *-----------------------------------------------------------------------------
 */

#include <cpuid.h>

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

// strstr


/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

void *
memcpy (void *dest, const void *src, size_t n)
{
   size_t k;

   for (k = 0; k < n; k++) {
      *((char *)dest + k) = *((char *)src + k);
   }

   return dest;
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

void *
memset (void *s, int c, size_t n)
{
  size_t k;

  for (k = 0; k < n; k++) {
    *((char *)s) = (char)c;
  }

  return s;
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

size_t
strlen (const char *s)
{
  size_t n = 0;

  while (*s++) n++;

  return n;
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

int
strncmp (const char *s1, const char *s2, size_t n)
{
  size_t k;

  for (k = 0; k < MIN (n, MIN (strlen (s1), strlen (s2))); k++) {
    if (s1[k] < s2[k]) {
      return -1;
    } else if (s1[k] > s2[k]) {
      return 1;
    }
  }

  return 0;
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

int
strcmp (const char *s1, const char *s2)
{
  return strncmp (s1, s2, MIN (strlen (s1), strlen (s2)));
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

char *
strncpy (char *dest, const char *src, size_t n)
{
  return (char *)memcpy ((void *)dest, (void *)src, n);
}


/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

char *
strcpy (char *dest, const char *src)
{
  return strncpy (dest, src, strlen (src) + 1);
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

char *
strncat (char *dest, const char *src, size_t n)
{
  strncpy (dest + strlen (dest), src, n);

  return dest;
}

/*
 *-----------------------------------------------------------------------------
 *
 *
 *
 *
 *
 *-----------------------------------------------------------------------------
 */

char *
strcat (char *dest, const char *src)
{
  return strncat (dest, src, strlen (src) + 1);
}