--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/ada/acats/tests/c2/c23001a.ada	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,64 @@
+-- C23001A.ADA
+
+--                             Grant of Unlimited Rights
+--
+--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
+--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
+--     unlimited rights in the software and documentation contained herein.
+--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
+--     this public release, the Government intends to confer upon all 
+--     recipients unlimited rights  equal to those held by the Government.  
+--     These rights include rights to use, duplicate, release or disclose the 
+--     released technical data and computer software in whole or in part, in 
+--     any manner and for any purpose whatsoever, and to have or permit others 
+--     to do so.
+--
+--                                    DISCLAIMER
+--
+--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
+--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
+--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
+--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
+--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
+--     PARTICULAR PURPOSE OF SAID MATERIAL.
+--*
+-- CHECK THAT UPPER AND LOWER CASE LETTERS ARE EQUIVALENT IN IDENTIFIERS
+-- (INCLUDING RESERVED WORDS).
+
+-- JRK 12/12/79
+-- JWC 6/28/85   RENAMED TO -AB
+
+WITH REPORT;
+PROCEDURE C23001A IS
+
+        USE REPORT;
+
+        AN_IDENTIFIER : INTEGER := 1;
+
+BEGIN
+        TEST ("C23001A", "UPPER/LOWER CASE EQUIVALENCE IN IDENTIFIERS");
+
+        DECLARE
+                an_identifier : INTEGER := 3;
+        BEGIN
+                IF an_identifier /= AN_IDENTIFIER THEN
+                        FAILED ("LOWER CASE NOT EQUIVALENT TO UPPER " &
+                                "IN DECLARABLE IDENTIFIERS");
+                END IF;
+        END;
+
+        IF An_IdEnTIfieR /= AN_IDENTIFIER THEN
+                FAILED ("MIXED CASE NOT EQUIVALENT TO UPPER IN " &
+                        "DECLARABLE IDENTIFIERS");
+        END IF;
+
+        if AN_IDENTIFIER = 1 ThEn
+                AN_IDENTIFIER := 2;
+        END IF;
+        IF AN_IDENTIFIER /= 2 THEN
+                FAILED ("LOWER AND/OR MIXED CASE NOT EQUIVALENT TO " &
+                        "UPPER IN RESERVED WORDS");
+        END IF;
+
+        RESULT;
+END C23001A;