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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/cpp/charconst-3.c
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diff --git a/gcc/testsuite/gcc.dg/cpp/charconst-3.c b/gcc/testsuite/gcc.dg/cpp/charconst-3.c
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+/* Copyright (C) 2001 Free Software Foundation, Inc. */
+
+/* { dg-do run } */
+/* { dg-options -Wno-multichar } */
+
+/* This tests values and signedness of multichar charconsts.
+
+ Neil Booth, 5 May 2002. */
+
+#include <limits.h>
+
+extern void abort (void);
+
+int main ()
+{
+ /* These tests require at least 2-byte ints. 8-) */
+#if INT_MAX > 127
+ int scale = (int) (unsigned char) -1 + 1;
+
+ if ('ab' != (int) ((unsigned char) 'a' * scale + (unsigned char) 'b'))
+ abort ();
+
+ if ('\234b' != (int) ((unsigned char) '\234' * scale + (unsigned char) 'b'))
+ abort ();
+
+ if ('b\234' != (int) ((unsigned char) 'b' * scale + (unsigned char) '\234'))
+ abort ();
+ /* Multichar charconsts have type int and should be signed. */
+#if INT_MAX == 32767
+# if '\234a' > 0
+# error Preprocessor charconsts 1
+# endif
+ if ('\234a' > 0)
+ abort ();
+#elif INT_MAX == 2147483647
+# if '\234aaa' > 0
+# error Preprocessor charconsts 2
+# endif
+ if ('\234aaa' > 0)
+ abort ();
+#elif INT_MAX == 9223372036854775807
+# if '\234aaaaaaa' > 0
+# error Preprocessor charconsts 3
+# endif
+ if ('\234aaaaaaa' > 0)
+ abort ();
+#endif
+#endif
+ return 0;
+}