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/*
** Find out how many more files can be fopen'ed
**
** public domain demo by Bob Stout
*/
#include <stdio.h>
#ifdef __TURBOC__
#define STREAM_BUF _streams
#define FCNT FOPEN_MAX
#define FLAG flags
#else /* MSC, ZTC++ */
#define STREAM_BUF _iob
#define FCNT _NFILE
#define FLAG _flag
#endif
int favail(void)
{
int i, count;
for (i = count = 0; i < FCNT; ++i)
{
if (0 == STREAM_BUF[i].FLAG)
++count;
}
return count;
}
#ifdef TEST
void main(void)
{
char *fname = "A$$$$$$$.$$$";
FILE *fp;
do
{
int i = favail();
printf("You can fopen %d new file%s\n", i, &"s"[i == 1]);
fp = fopen(fname, "w");
*fname += 1;
} while (fp);
do
{
printf("removing %s\n", fname);
remove(fname);
} while ('A' <= --(*fname)) ;
}
#endif /*TEST */
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