X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_config_bottom.h;fp=src%2Frrd_config_bottom.h;h=a569197ab9a8b709f0135895ad88b60248648852;hp=d04e592af13f56088cc10d88509201713506b934;hb=b3230fbfae987be002718a5a035db2030b880871;hpb=6d1c8e317b18e21448c6e7503d8ce98e7118c5ae

diff --git a/src/rrd_config_bottom.h b/src/rrd_config_bottom.h
index d04e592..a569197 100644
--- a/src/rrd_config_bottom.h
+++ b/src/rrd_config_bottom.h
@@ -175,7 +175,8 @@ char *strchr (), *strrchr ();
 #  ifdef isinf
 #  undef isinf
 #  endif
-#  define isinf(a) (fpclass(a) == FP_NINF || fpclass(a) == FP_PINF)
+#  define isinf(a) (!!(fpclass(a) & (FP_SNAN|FP_QNAN)))
+
 #endif
 
 /* solaris 10 it defines isnan such that only forte can compile it ... bad bad  */