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Merge pull request #1221 from rbehrends/readallbuf-fix

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Fixed readAllBuffer() to avoid adding garbage bytes at end.
This commit is contained in:
Andreas Rumpf 2014-05-31 20:51:16 +02:00
commit 6ae46265cc
1 changed files with 8 additions and 4 deletions
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10
lib/system/sysio.nim
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@ -115,10 +115,14 @@ proc readAllBuffer(file: TFile): string =
# bytes we need to read before the buffer is empty. # bytes we need to read before the buffer is empty.
result = "" result = ""
var buffer = newString(BufSize) var buffer = newString(BufSize)
var bytesRead = BufSize while true:
while bytesRead == BufSize: var bytesRead = readBuffer(file, addr(buffer[0]), BufSize)
bytesRead = readBuffer(file, addr(buffer[0]), BufSize) if bytesRead == BufSize:
result.add(buffer) result.add(buffer)
else:
buffer.setLen(bytesRead)
result.add(buffer)
break
proc rawFileSize(file: TFile): int = proc rawFileSize(file: TFile): int =
# this does not raise an error opposed to `getFileSize` # this does not raise an error opposed to `getFileSize`