change instruction dispatch to computed-goto

bug fixed prepare for version 7.0
2021-06-26 14:53:10 +08:00
parent 3c9a10d710
commit 706659ba3d
7 changed files with 212 additions and 194 deletions
@@ -722,7 +722,7 @@ nasal_val* builtin_substr(std::vector<nasal_val*>& local_scope,nasal_gc& gc)
    std::string& str=*str_addr->ptr.str;
    int beg=(int)beg_addr->ptr.num;
    int len=(int)len_addr->ptr.num;
-    if(beg>=str.length() || beg+len>=str.length())
+    if(beg>=str.length() || beg+len-1>=str.length())
    {
        builtin_err("susbtr","index out of range");
        return nullptr;