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| author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2011-01-14 12:47:10 +0000 |
|---|---|---|
| committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2011-01-14 12:47:10 +0000 |
| commit | 9db190eb31d4adc412d50bc03574951f9a1f9dae (patch) | |
| tree | 788c4f95e32361f34dd309b9e82cc477dee41dbc /src/libexpr | |
| parent | d6c8b995c5c08a6c6a6b18f0b2cf5b4b95cfc1b1 (diff) | |
| download | guix-9db190eb31d4adc412d50bc03574951f9a1f9dae.tar.gz | |
* builtins.substring: if "start" is beyond the end of the string,
return the empty string.
Diffstat (limited to 'src/libexpr')
| -rw-r--r-- | src/libexpr/primops.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index a4812de065..3e955ea3fe 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -965,7 +965,7 @@ static void prim_substring(EvalState & state, Value * * args, Value & v) if (start < 0) throw EvalError("negative start position in `substring'"); - mkString(v, string(s, start, len), context); + mkString(v, start >= s.size() ? "" : string(s, start, len), context); } |