avoid segfault on the last word of the command history

2020-10-11 14:05:37 -04:00
parent 9950f0d259
commit f6683fefea
1 changed files with 2 additions and 1 deletions
--- a/tools/lammps-shell/lammps-shell.cpp
+++ b/tools/lammps-shell/lammps-shell.cpp
@ -229,7 +229,8 @@ static char *cmd_generator(const char *text, int state)
    len = strlen(text);

    do {
-        if ((len == 0) || (commands[idx].substr(0, len) == text))
+      if ((idx < commands.size())
+          && ((len == 0) || (commands[idx].substr(0, len) == text)))
            return dupstring(commands[idx++]);
        else
            ++idx;