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fixes #11049, wrong streams.readBool and streams.peekBool (#11284)

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Miran
2019-05-20 19:39:38 +02:00
committed by Andreas Rumpf
parent d490bc519a
commit dc6a4b1d43
1 changed files with 16 additions and 4 deletions
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20
lib/pure/streams.nim
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@@ -412,7 +412,11 @@ proc peekChar*(s: Stream): char =
if peekData(s, addr(result), sizeof(result)) != 1: result = '\0'
proc readBool*(s: Stream): bool =
## Reads a bool from the stream `s`. Raises `IOError` if an error occurred.
## Reads a bool from the stream `s`.
##
## A bool is one byte long and it is `true` for every non-zero
## (`0000_0000`) value.
## Raises `IOError` if an error occurred.
runnableExamples:
var strm = newStringStream()
## setup for reading data
@@ -426,10 +430,16 @@ proc readBool*(s: Stream): bool =
doAssertRaises(IOError): discard strm.readBool()
strm.close()
read(s, result)
var t: byte
read(s, t)
result = t != 0.byte
proc peekBool*(s: Stream): bool =
## Peeks a bool from the stream `s`. Raises `IOError` if an error occurred.
## Peeks a bool from the stream `s`.
##
## A bool is one byte long and it is `true` for every non-zero
## (`0000_0000`) value.
## Raises `IOError` if an error occurred.
runnableExamples:
var strm = newStringStream()
## setup for reading data
@@ -445,7 +455,9 @@ proc peekBool*(s: Stream): bool =
doAssert strm.peekBool() == false
strm.close()
peek(s, result)
var t: byte
peek(s, t)
result = t != 0.byte
proc readInt8*(s: Stream): int8 =
## Reads an int8 from the stream `s`. Raises `IOError` if an error occurred.