*** empty log message ***

From-SVN: r33697

gcc/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2000-05-04  Neil Booth  <NeilB@earthling.net>
+
+	* gcc.dg/cpp-opprec.c: New tests for operator precedence in the
+	preprocessor.
+
 2000-05-04  Richard Henderson  <rth@cygnus.com>
 
 	* gcc.c-torture/execute/20000503-1.c: Fix typo.

gcc/testsuite/gcc.dg/cpp-opprec.c

@@ -0,0 +1,97 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.  */
+
+/* Test the full range of preprocessor operator precedence.  Each
+   operator is tested with one of immediately higher precedence to
+   verify it is of strictly lower precedence.  To avoid complications,
+   each test uses just those two operators.  Occasionally this assumes
+   correct operation of if-then-else, so the first tests verify this.  */
+
+/* { dg-do preprocess } */
+
+/* Ensure correct functioning of if-then-else.  */
+#if 1
+#else
+#error #else block evaluated for true conditional
+#endif
+
+#if 0
+#error #if block evaluated for false conditional
+#else
+#endif
+
+/* , not higher than ?.  This is not a syntax error if it is.  */
+#if 1 ? 0, 1: 1	/* { dg-error "syntax" "? higher precedence than ," } */
+#error
+#endif
+
+/* : strictly higher than ?.  This would give a syntax error otherwise.  */
+#if 0 ? 0 : 1 ? 1 : 1
+#endif
+
+/* || strictly higher than ?:. */
+#if 1 ? 0: 0 || 1
+#error operator ?: has higher precedence than operator ||
+#endif
+
+/* && strictly higher than ||.  */
+#if 1 || 0 && 0
+#else
+#error operator || has higher precedence than operator &&
+#endif
+
+/* | strictly higher than &&.  */
+#if 0 && 0 | 1
+#error operator && has higher precedence than operator |
+#endif
+
+/* ^ strictly higher than |.  */
+#if 1 | 0 ^ 1
+#else
+#error operator | has higher precedence than operator ^
+#endif
+
+/* & strictly higher than ^.  */
+#if 1 ^ 0 & 0
+#else
+#error operator ^ has higher precedence than operator &
+#endif
+
+/* == (!=) strictly higher than &.  */
+#if 0 & 0 == 0
+#error operator & has higher precedence than operator ==
+#endif
+
+/* < (>, <=, >=) strictly higher than == (!=).  */
+
+#if 0 == 0 < 0
+#else
+#error operator == has higher precedence than operator <
+#endif
+
+/* << (>>) strictly higher than < (>, <=, >=).  */
+#if 1 < 1 << 1
+#else
+#error operator < has higher precedence than operator <<
+#endif
+
+/* Binary + (-) strictly higher than << (>>).  */
+#if 0 << 0 + 1
+#error operator << has higher precedence than binary +
+#endif
+
+/* Binary * (/, %) strictly higher than binary + (-).  */
+#if 1 + 0 * 0
+#else
+#error binary + has higher precedence than binary *
+#endif
+
+/* Unary operators (!, ~, -, +) strictly higher than binary * (/, %).
+   Equality is hard to detect because of right-associativity.  */
+#if ~1 * 0
+#error binary * has higher precedence than operator ~
+#endif
+
+/* () > Unary.  Unfortunately this requires an additional operator.  */
+#if -(1 - 1)
+#error unary - has higher precedence than operator ()
+#endif