trap negative numbers
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@ -11,7 +11,7 @@ if {![exists -proc pretty_size]} {
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# We need to know how many powers of 1024 there are in
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# We need to know how many powers of 1024 there are in
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# size. This calculates the answer effeciently. Testing
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# size. This calculates the answer effeciently. Testing
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# shows that this version takes 2/3 the time of the above.
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# shows that this version takes 2/3 the time of the above.
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if {$size == 0} {
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if {$size <= 0} {
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set i 0
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set i 0
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} else {
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} else {
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set i $(int(log($size) / log(1024)))
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set i $(int(log($size) / log(1024)))
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