implement newOrNil, changes to stdlib
- newOrNil works like new, but sets the variable to nil if the heap allocation failed - change stdlib to use newOrNil in openfile and openvolumeid - changes to programs that use openvolumeid
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10 changed files with 68 additions and 48 deletions
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@ -149,7 +149,7 @@ begin
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count := PageMargin;
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writeln('reading directory of ', DefaultVolume);
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openvolumeid(volid);
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openvolumeid(volid, error);
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readdirfirst(volid, index, dirs, error);
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while index > 0 do
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begin
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