diff options
Diffstat (limited to 'editors/awk.c')
| -rw-r--r-- | editors/awk.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/editors/awk.c b/editors/awk.c index d54249b..bafc9ba 100644 --- a/editors/awk.c +++ b/editors/awk.c @@ -598,6 +598,7 @@ static const char EMSG_NOT_ARRAY[] ALIGN1 = "Not an array"; static const char EMSG_POSSIBLE_ERROR[] ALIGN1 = "Possible syntax error"; static const char EMSG_UNDEF_FUNC[] ALIGN1 = "Call to undefined function"; static const char EMSG_NO_MATH[] ALIGN1 = "Math support is not compiled in"; +static const char EMSG_NEGATIVE_FIELD[] ALIGN1 = "Access to negative field"; static void zero_out_var(var *vp) { @@ -2949,6 +2950,8 @@ static var *evaluate(node *op, var *res) case XC( OC_FIELD ): { int i = (int)getvar_i(R.v); + if (i < 0) + syntax_error(EMSG_NEGATIVE_FIELD); if (i == 0) { res = intvar[F0]; } else { |