check.c (gfc_check_ttynam_sub, [...]): Add check functions for new intrinsics TTYNAM and ISATTY.

	* check.c (gfc_check_ttynam_sub, gfc_check_isatty): Add check
	functions for new intrinsics TTYNAM and ISATTY.
	* intrinsic.c (add_functions, add_subroutines): Add new
	intrinsics.
	* intrinsic.h: Add prototypes for new check and resolve
	functions.
	* iresolve.c (gfc_resolve_isatty, gfc_resolve_ttynam_sub): New
	resolve functions for intrinsics TTYNAM and ISATTY.
	* gfortran.h (gfc_generic_isym_id): Add symbol for ISATTY.
	* trans-intrinsic.c: Add case for GFC_ISYM_ISATTY.
	* Makefile.am: Add file intrinsics/tty.c to Makefile process.
	* Makefile.in: Regenerate.
	* io/io.h: Prototypes for new functions stream_isatty and
	stream_ttyname.
	* io/unix (stream_isatty, stream_ttyname): New functions to call
	isatty() and ttyname() on a given unit.
	* intrinsics/tty.c: New file to implement g77 intrinsics TTYNAM
	and ISATTY.

From-SVN: r102915

1 files changed, 32 insertions, 0 deletions

diff --git a/gcc/fortran/check.c b/gcc/fortran/check.c
index 57b9068..fbbc96b 100644
--- a/gcc/fortran/check.c
+++ b/gcc/fortran/check.c
@@ -2574,6 +2574,38 @@ gfc_check_hostnm_sub (gfc_expr * name, gfc_expr * status)
 
 
 try
+gfc_check_ttynam_sub (gfc_expr * unit, gfc_expr * name)
+{
+  if (scalar_check (unit, 0) == FAILURE)
+    return FAILURE;
+
+  if (type_check (unit, 0, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (type_check (name, 1, BT_CHARACTER) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_isatty (gfc_expr * unit)
+{
+  if (unit == NULL)
+    return FAILURE;
+
+  if (type_check (unit, 0, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (scalar_check (unit, 0) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
 gfc_check_perror (gfc_expr * string)
 {
   if (type_check (string, 0, BT_CHARACTER) == FAILURE)