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Uses swap() to avoid variable copies. Refs #1048.

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This commit is contained in:
Grzegorz Adam Hankiewicz 2014-03-29 12:27:18 +01:00
commit a6f8bae69f
1 changed files with 4 additions and 4 deletions
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8
lib/wrappers/zip/zlib.nim
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@ -287,10 +287,10 @@ proc uncompress*(sourceBuf: cstring, sourceLen: int): string =
# Verify that the input is a valid gzip stream. # Verify that the input is a valid gzip stream.
if status != Z_STREAM_END: if status != Z_STREAM_END:
# Incomplete gzip stream. # Incomplete gzip stream.
return nil return
decompressed.setLen(have) decompressed.setLen(have)
result = decompressed swap(result, decompressed)
proc inflate*(buffer: var string): bool {.discardable.} = proc inflate*(buffer: var string): bool {.discardable.} =
@ -303,7 +303,7 @@ proc inflate*(buffer: var string): bool {.discardable.} =
## Returns true if `buffer` was successfully inflated. ## Returns true if `buffer` was successfully inflated.
assert (not buffer.isNil) assert (not buffer.isNil)
if buffer.len < 1: return if buffer.len < 1: return
let temp = uncompress(addr(buffer[0]), buffer.len) var temp = uncompress(addr(buffer[0]), buffer.len)
if not temp.isNil: if not temp.isNil:
buffer = temp swap(buffer, temp)
result = true result = true