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[c]代码库

#include <stdio.h>

int main ( void )
{
	int streams_closed;

	/* open two streams */
	fopen ( "DUMMY.ONE", "w" );
	fopen ( "DUMMY.TWO", "w" );

	/* close the open streams */
	streams_closed = fcloseall();

	if ( streams_closed == EOF )
		/* issue an error message */
		perror ( "Error" );
	else
		/* print result of fcloseall() function */
		printf ( "%d streams were closed.\n", streams_closed );

	return 0;
}