converting hex strings

*To*: mathgroup at smc.vnet.net*Subject*: [mg27413] converting hex strings*From*: maarten.vanderburgt at icos.be*Date*: Sun, 25 Feb 2001 00:53:36 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

Hallo, I have a list of hexadecimal strings (read from a hex string text file): e.g. {"01a0", "fffe", "0080"} representing integers. How can I convert such a list to integers so that I get {416, 4094, 128}? I cannot make a function using something like hextoint = 16^^#& or hextoin = 16^^ToExpression[#]& I get errors like below: In[44]:= hexstr = "a1b0" t = ToExpression[hexstr]; 16^^t General::"digit": "Digit at position \!\(1\) in \!\(\"t\"\) is too large to \ be used in base \!\(16\)." Where does this error come from? While this works ok: In[43]:= 16^^a1b0 Out[43]= 41392 The ToExpression[ ] also would give problems: ToExpression["01a0"] returns 0. Has anyone done anything along these lines? How would I have to convert a hex list representing floats (IEEE floating point standard)?, e.g. {"42c8000", "3dfcd35b", "bf80000"} which should convert to {100.0, 0.12345, -1.0} in a decimal notation. Thanks for your help Maarten ------------------------------------------- Maarten van der Burgt Icos Vision Systems Esperantolaan 9 B-3001 Leuven Belgium -------------------------------------------