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ReplaceAll in If Statement

• To: mathgroup at smc.vnet.net
• Subject: [mg19448] ReplaceAll in If Statement
• From: "Tom Compton" <comptont at concentric.net>
• Date: Wed, 25 Aug 1999 01:25:16 -0400
• Organization: Concentric Internet Services
• Sender: owner-wri-mathgroup at wolfram.com

In the following sequence I expected z to evaluate to 1 in the
Module.  It appears that the test in the module does not
evaluate to either True or False.  I don't understand why.
Can anyone explain?

In[1]:=
opList={a->True};

In[2]:=
test[opts___]:=Module[{},
If[a /. {opts}, z=1, z=2, z=3];
{a, z} /. {opts}]

In[3]:=
test[opList]
Out[3]=
{{True,3}}



Tom Compton

• Follow-Ups:
  • Re: ReplaceAll in If Statement
    • From: "Carl K.Woll" <carlw@fermi.phys.washington.edu>
  • Re: ReplaceAll in If Statement
    • From: "Wolf, Hartmut" <hwolf@debis.com>
  • Re: ReplaceAll in If Statement
    • From: Jean-Marie Thomas <jmt@agat.net>