diff options
| -rw-r--r-- | src/libexpr/primops.cc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 471ddc4f3..c1c606d1d 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -3275,10 +3275,12 @@ static RegisterPrimOp primop_all({ static void prim_genList(EvalState & state, const PosIdx pos, Value * * args, Value & v) { - auto len = state.forceInt(*args[1], pos, "while evaluating the second argument passed to builtins.genList").value; + auto len_ = state.forceInt(*args[1], pos, "while evaluating the second argument passed to builtins.genList").value; - if (len < 0) - state.error<EvalError>("cannot create list of size %1%", len).atPos(pos).debugThrow(); + if (len_ < 0) + state.error<EvalError>("cannot create list of size %1%", len_).atPos(pos).debugThrow(); + + size_t len = len_; // More strict than striclty (!) necessary, but acceptable // as evaluating map without accessing any values makes little sense. |