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Temperature conversion: Difference between revisions
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→{{header|REXX}}: added support for better error reporting. -- ~~~~
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if z=='' then call serr 'no arguments were specified.'
_=verify(z, '+-.0123456789') /*a list of valid number thingys.*/
n=z
if _\==0 then do
if _==1 then call serr 'illegal temperature:'
n=left(z, _-1)
u=strip(substr(z, _))
end
else u='k' /*assume Kelvin as per task req.*/
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