jyapayne/Nim
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

streams.ssWriteData: calling setLen only when new data truely increases the underlying string buffer

Browse source
This commit is contained in:
Archs 2015-03-01 00:33:40 +08:00
commit f9b2f9565c
1 changed files with 5 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

4
lib/pure/streams.nim
View file

@ -224,7 +224,9 @@ proc ssReadData(s: Stream, buffer: pointer, bufLen: int): int =
proc ssWriteData(s: Stream, buffer: pointer, bufLen: int) = proc ssWriteData(s: Stream, buffer: pointer, bufLen: int) =
var s = StringStream(s) var s = StringStream(s)
if bufLen > 0: if bufLen <= 0:
return
if s.pos + bufLen > s.data.len():
setLen(s.data, s.data.len + bufLen) setLen(s.data, s.data.len + bufLen)
copyMem(addr(s.data[s.pos]), buffer, bufLen) copyMem(addr(s.data[s.pos]), buffer, bufLen)
inc(s.pos, bufLen) inc(s.pos, bufLen)