fix FP_ILOGB0 and FP_ILOGBNAN definitions to be valid for use in #if
commit 98c9af500125df41fdb46d7e384b00982d72493a wrongly claimed they
do not need to be valid for such usage, but the last sentence of C11
7.1.4 ΒΆ1 imposes a broad requirement that all macros specified as
integer constant expressions also need to be valid for #if.
simply write the value out explicitly. there is no value here in
pretending that the width of int will vary.
diff --git a/include/math.h b/include/math.h
index 6ac91da..fea3468 100644
--- a/include/math.h
+++ b/include/math.h
@@ -27,7 +27,7 @@
#define MATH_ERREXCEPT 2
#define math_errhandling 2
-#define FP_ILOGBNAN (-1-(int)(((unsigned)-1)>>1))
+#define FP_ILOGBNAN (-1-0x7fffffff)
#define FP_ILOGB0 FP_ILOGBNAN
#define FP_NAN 0