diff options
Diffstat (limited to 'Src/subst.c')
| -rw-r--r-- | Src/subst.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/Src/subst.c b/Src/subst.c index 24d515d06..37d63cabe 100644 --- a/Src/subst.c +++ b/Src/subst.c @@ -2814,12 +2814,14 @@ paramsubst(LinkList l, LinkNode n, char **str, int qt, int ssub) zerr("invalid length: %s", check_offset); return NULL; } - length = mathevali(check_offset); - if (errflag) - return NULL; - if (length < (zlong)0) { - zerr("invalid length: %s", check_offset); - return NULL; + if (check_offset) { + length = mathevali(check_offset); + if (errflag) + return NULL; + if (length < (zlong)0) { + zerr("invalid length: %s", check_offset); + return NULL; + } } } if (horrible_offset_hack) { |