// filename:c2011-K-3-7-3-1-ex.c
// original examples and/or notes:
// 		(c) ISO/IEC JTC1 SC22 WG14 N1570, April 12, 2011
// 			C2011 K.3.7.3.1 The strtok_s function
// compile and output mechanism:
// 		(c) Ogawa Kiyoshi, kaizen@gifu-u.ac.jp, December.29, 2013
// compile errors and/or wornings:
// 		(c) Apple LLVM version 4.2 (clang-425.0.27) (based on LLVM 3.2svn)
// 			Target: x86_64-apple-darwin11.4.2 //Thread model: posix
// 		(c) LLVM 2003-2009 University of Illinois at Urbana-Champaign.
// Example 1
#define __STDC_WANT_LIB_EXT1__ 1
#include <stdio.h>
#include <string.h>

int main(void)
{
	/* ... */ 
static char str1[] = "?a???b,,,#c";
static char str2[] = "\t \t";
char *t, *ptr1, *ptr2;
rsize_t max1 = sizeof (str1);
rsize_t max2 = sizeof (str2);
t = strtok_s(str1, &max1, "?", &ptr1); // t points to the token "a"
	printf("%s", t);
		t = strtok_s(NULL, &max1, ",", &ptr1); // t points to the token "??b"
	printf("%s", t);
t = strtok_s(str2, &max2, " \t", &ptr2); // t is a null pointer
	printf("%s", t);
	t = strtok_s(NULL, &max1, "#,", &ptr1); // t points to the token "c"
	printf("%s", t);
	t = strtok_s(NULL, &max1, "?", &ptr1); // t is a null pointer
return printf("K.3.7.1.4 The strncpy_s function %s \n",t );
}
// output may be