types: adjust double printing format

Change the printf format for formatting doubles from `%g` to `%.14g`.
This matches the behaviour of Lua 5.1.5 with LNUM used on OpenWrt and
ensures that expressions such as `print(31764740.0 / 100)` yield the
expected `317647.4` result and not a truncated (rounded down) value of
`317647`.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/types.c b/types.c
index 38262ca..8a7986b 100644
--- a/types.c
+++ b/types.c
@@ -1567,7 +1567,7 @@ ucv_to_stringbuf_formatted(uc_vm_t *vm, uc_stringbuf_t *pb, uc_value_t *uv, size
 		else if (d == -INFINITY)
 			ucv_stringbuf_append(pb, "-Infinity");
 		else
-			ucv_stringbuf_printf(pb, "%g", d);
+			ucv_stringbuf_printf(pb, "%.14g", d);
 
 		break;