src/utils_format_json.[ch]: Export gauges with 15 decimal places of precision.

[collectd.git] / src / utils_format_json.h

diff --git a/src/utils_format_json.h b/src/utils_format_json.h
index c902e27..f8f5a35 100644 (file)
--- a/src/utils_format_json.h
+++ b/src/utils_format_json.h
@@ -25,6 +25,10 @@
 #include "collectd.h"
 #include "plugin.h"
 
+#ifndef JSON_GAUGE_FORMAT
+# define JSON_GAUGE_FORMAT "%.15g"
+#endif
+
 int format_json_initialize (char *buffer,
     size_t *ret_buffer_fill, size_t *ret_buffer_free);
 int format_json_value_list (char *buffer,