lib/standard: `Text::to_n` returns 0 as failsafe when receiver is empty

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/standard/numeric.nit b/lib/standard/numeric.nit
index 1d2e30c..92fe49a 100644 (file)
--- a/lib/standard/numeric.nit
+++ b/lib/standard/numeric.nit
@@ -30,9 +30,11 @@ redef class Text
        # assert "0.0".to_n == 0.0
        # assert ".12345".to_n == 0.12345
        # assert "12345".to_n == 12345
+       # assert "".to_n == 0
        # ~~~~
        fun to_n: Numeric
        do
+               if is_empty then return 0
                if chars.has('.') then return to_f
                return to_i
        end