Re: [PATCH 1/6] limits-h: add BOOL_MAX, BOOL_WIDTH

[Bruno Haible]

> +     limits-h: add BOOL_MAX, BOOL_WIDTH

2021-08-01  Bruno Haible  <bruno@clisp.org>

        limits-h tests: Add tests for BOOL_MAX and BOOL_WIDTH.
        * tests/test-limits-h.c (bool_attrs): New variable.
        Check value of BOOL_MAX.

diff --git a/tests/test-limits-h.c b/tests/test-limits-h.c
index 4144013..f3394c1 100644
--- a/tests/test-limits-h.c
+++ b/tests/test-limits-h.c
@@ -110,6 +110,11 @@ verify_width (ULONG_WIDTH, 0, ULONG_MAX);
 verify_width (LLONG_WIDTH, LLONG_MIN, LLONG_MAX);
 verify_width (ULLONG_WIDTH, 0, ULLONG_MAX);
 
+/* Macros specified by C2x.  */
+
+int bool_attrs[] = { BOOL_MAX, BOOL_WIDTH };
+verify (BOOL_MAX == (((1U << (BOOL_WIDTH - 1)) - 1) * 2) + 1);
+
 int
 main (void)
 {