add directory study

study/linux-travel/minix-386/estdio21.tar/estdio21/printf.c

@@ -0,0 +1,19 @@
+/*                               p r i n t f                               */
+
+#include "stdiolib.h"
+
+/*LINTLIBRARY*/
+/*VARARGS1*/
+/*ARGSUSED*/
+
+int printf F1V(CONST char *, fmt,
+
+{
+  register VA_LIST, arg,		/* argument vector */
+  register int v;			/* return value */
+
+  VA_START(arg, fmt);)
+  v = __vfprintf(stdout, fmt, arg);
+  VA_END(arg);
+  return v;
+}