diff --git a/src/core/store.c b/src/core/store.c
index 455e5a328ae14c29d012906bd1057959d8ad15ae..ad59a2e99df3612178445edafe02eeabe3d9fa69 100644 (file)
--- a/src/core/store.c
+++ b/src/core/store.c
#include <stdlib.h>
#include <string.h>
+#include <math.h>
#include <pthread.h>
/*
snprintf(time_str, sizeof(time_str), "<error>");
time_str[sizeof(time_str) - 1] = '\0';
- sdb_strbuf_append(buf, "{\"timestamp\": \"%s\", "
- "\"value\": \"%f\"}", time_str, ts->data[i][j].value);
+ /* Some GNU libc versions may print '-nan' which we dont' want */
+ if (isnan(ts->data[i][j].value))
+ sdb_strbuf_append(buf, "{\"timestamp\": \"%s\", "
+ "\"value\": \"nan\"}", time_str);
+ else
+ sdb_strbuf_append(buf, "{\"timestamp\": \"%s\", "
+ "\"value\": \"%f\"}", time_str, ts->data[i][j].value);
if (j < ts->data_len - 1)
sdb_strbuf_append(buf, ",");