"==" fails in group command

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1

This script

region box block 0 10 0 10 0 10 units box
create_box 1 box
create_atoms 1 single 5 5 5 units box
group fst id == 1

gives me an error
ERROR: Expected integer parameter in input script or data file
(../group.cpp:290).

I can get the expected result with
group fst id 1

but the error breaks old scripts and the documentation says "==" should work.
http://lammps.sandia.gov/doc/group.html

My version is 4e3bc9d059a97.

2

This script

region box block 0 10 0 10 0 10 units box
create_box 1 box
create_atoms 1 single 5 5 5 units box
group fst id == 1

gives me an error
ERROR: Expected integer parameter in input script or data file
(../group.cpp:290).

I can get the expected result with
group fst id 1

but the error breaks old scripts and the documentation says "==" should
work.
LAMMPS Molecular Dynamics Simulator

My version is 4e3bc9d059a97.

​it should work, but there is a bug. the following change fixes it.

diff --git a/src/group.cpp b/src/group.cpp
index 080b5c2..0c14b91 100644
--- a/src/group.cpp
+++ b/src/group.cpp
@@ -186,7 +186,7 @@ void Group::assign(int narg, char **arg)
     if (narg > 3 &&
         (strcmp(arg[2],"<") == 0 || strcmp(arg[2],">") == 0 ||
          strcmp(arg[2],"<=") == 0 || strcmp(arg[2],">=") == 0 ||
- strcmp(arg[2],"<>") == 0)) {
+ strcmp(arg[2],"<>") == 0 || strcmp(arg[2],"==") == 0)) {

       int condition = -1;
       if (strcmp(arg[2],"<") == 0) condition = LT;

axel.​

3

fixed it - will be in next patch

thanks,
Steve