[geohash] Adding bounds checks from python-geohash

2015-07-09 04:13:53 -04:00
parent 722904ce59
commit 20303ad94f
1 changed files with 3 additions and 0 deletions
--- a/src/geohash/geohash.c
+++ b/src/geohash/geohash.c
@@ -216,6 +216,9 @@ int geohash_encode(double latitude, double longitude, char *r, size_t capacity)
    char lr[capacity];
    memset(interleaved, 0, sizeof(interleaved));

+    while (longitude < -180.0) longitude += 360.0;
+    while (longitude >= 180.0) longitude -= 360.0;
+
    if (!double_to_i64(latitude/90.0, &lat64) || !double_to_i64(longitude/180.0, &lon64)) {
        return GEOHASH_INVALIDARGUMENT;
    }