src/utils_format_json.c: Use "isfinite" rather than "isinf".

Makes it a bit easier to read.

diff --git a/src/utils_format_json.c b/src/utils_format_json.c
index dda2234fdd53f19bff58b2f90b25f6d1277e47e7..75a73aeea4a00e0465f27e8fa09134ca04bea921 100644 (file)
--- a/src/utils_format_json.c
+++ b/src/utils_format_json.c
@@ -99,10 +99,10 @@ static int values_to_json (char *buffer, size_t buffer_size, /* {{{ */
 
     if (ds->ds[i].type == DS_TYPE_GAUGE)
     {
-      if(isnan(vl->values[i].gauge) || isinf(vl->values[i].gauge))
-        BUFFER_ADD ("null");
-      else
+      if(isfinite (vl->values[i].gauge))
         BUFFER_ADD ("%g", vl->values[i].gauge);
+      else
+        BUFFER_ADD ("null");
     }
     else if (ds->ds[i].type == DS_TYPE_COUNTER)
       BUFFER_ADD ("%llu", vl->values[i].counter);