check.c (gfc_check_getcwd_sub): Fix seg fault.

[gcc.git] / gcc / fortran / check.c

diff --git a/gcc/fortran/check.c b/gcc/fortran/check.c
index a010dce6e77eb4bc7d62639e171c539a6d9e9236..392086429b425ae15e383f41423b27d086285612 100644 (file)
--- a/gcc/fortran/check.c
+++ b/gcc/fortran/check.c
@@ -525,6 +525,28 @@ gfc_check_atan2 (gfc_expr * y, gfc_expr * x)
 }
 
   
+/* BESJN and BESYN functions.  */
+
+try
+gfc_check_besn (gfc_expr * n, gfc_expr * x)
+{
+
+  if (scalar_check (n, 0) == FAILURE)
+    return FAILURE;
+
+  if (type_check (n, 0, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (scalar_check (x, 1) == FAILURE)
+    return FAILURE;
+
+  if (type_check (x, 1, BT_REAL) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
 try
 gfc_check_btest (gfc_expr * i, gfc_expr * pos)
 {
@@ -728,6 +750,22 @@ gfc_check_eoshift (gfc_expr * array, gfc_expr * shift, gfc_expr * boundary,
 }
 
 
+/* This is used for the g77 one-argument Bessel functions, and the
+   error function.  */
+
+try
+gfc_check_g77_math1 (gfc_expr * x)
+{
+
+  if (scalar_check (x, 0) == FAILURE)
+    return FAILURE;
+
+  if (type_check (x, 0, BT_REAL) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
 
 try
 gfc_check_huge (gfc_expr * x)
@@ -1963,6 +2001,9 @@ gfc_check_system_clock (gfc_expr * count, gfc_expr * count_rate,
 try
 gfc_check_irand (gfc_expr * x)
 {
+  if (x == NULL)
+    return SUCCESS;
+
   if (scalar_check (x, 0) == FAILURE)
     return FAILURE;
 
@@ -1978,6 +2019,9 @@ gfc_check_irand (gfc_expr * x)
 try
 gfc_check_rand (gfc_expr * x)
 {
+  if (x == NULL)
+    return SUCCESS;
+
   if (scalar_check (x, 0) == FAILURE)
     return FAILURE;
 
@@ -2055,3 +2099,127 @@ gfc_check_etime_sub (gfc_expr * values, gfc_expr * time)
 
   return SUCCESS;
 }
+
+
+try
+gfc_check_getcwd_sub (gfc_expr * cwd, gfc_expr * status)
+{
+
+  if (type_check (cwd, 0, BT_CHARACTER) == FAILURE)
+    return FAILURE;
+
+  if (status == NULL)
+    return SUCCESS;
+
+  if (scalar_check (status, 1) == FAILURE)
+    return FAILURE;
+
+  if (type_check (status, 1, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_exit (gfc_expr * status)
+{
+  
+  if (status == NULL)
+  return SUCCESS;
+
+  if (type_check (status, 0, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (scalar_check (status, 0) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_umask (gfc_expr * mask)
+{
+
+  if (type_check (mask, 0, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (scalar_check (mask, 0) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_umask_sub (gfc_expr * mask, gfc_expr * old)
+{
+
+  if (type_check (mask, 0, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (scalar_check (mask, 0) == FAILURE)
+    return FAILURE;
+
+  if (old == NULL)
+    return SUCCESS;
+
+  if (scalar_check (old, 1) == FAILURE)
+    return FAILURE;
+
+  if (type_check (old, 1, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_unlink (gfc_expr * name)
+{
+
+  if (type_check (name, 0, BT_CHARACTER) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_unlink_sub (gfc_expr * name, gfc_expr * status)
+{
+
+  if (type_check (name, 0, BT_CHARACTER) == FAILURE)
+    return FAILURE;
+
+  if (status == NULL)
+    return SUCCESS;
+
+  if (scalar_check (status, 1) == FAILURE)
+    return FAILURE;
+
+  if (type_check (status, 1, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
+try
+gfc_check_system_sub (gfc_expr * cmd, gfc_expr * status)
+{
+  if (type_check (cmd, 0, BT_CHARACTER) == FAILURE)
+    return FAILURE;
+
+  if (scalar_check (status, 1) == FAILURE)
+    return FAILURE;
+
+  if (type_check (status, 1, BT_INTEGER) == FAILURE)
+    return FAILURE;
+
+  if (kind_value_check (status, 1, gfc_default_integer_kind) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}