Merge pull request #2165 from def-/read-write-bytes

Make readBytes and writeBytes work with uint8

2 files changed, 4 insertions, 4 deletions

diff --git a/lib/system.nim b/lib/system.nim
index accc2ef25..a71699cae 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -2457,7 +2457,7 @@ when not defined(JS): #and not defined(NimrodVM):
     proc getFileSize*(f: File): int64 {.tags: [ReadIOEffect], benign.}
       ## retrieves the file size (in bytes) of `f`.
 
-    proc readBytes*(f: File, a: var openArray[int8], start, len: int): int {.
+    proc readBytes*(f: File, a: var openArray[int8|uint8], start, len: int): int {.
       tags: [ReadIOEffect], benign.}
       ## reads `len` bytes into the buffer `a` starting at ``a[start]``. Returns
       ## the actual number of bytes that have been read which may be less than
@@ -2475,7 +2475,7 @@ when not defined(JS): #and not defined(NimrodVM):
       ## the actual number of bytes that have been read which may be less than
       ## `len` (if not as many bytes are remaining), but not greater.
 
-    proc writeBytes*(f: File, a: openArray[int8], start, len: int): int {.
+    proc writeBytes*(f: File, a: openArray[int8|uint8], start, len: int): int {.
       tags: [WriteIOEffect], benign.}
       ## writes the bytes of ``a[start..start+len-1]`` to the file `f`. Returns
       ## the number of actual written bytes, which may be less than `len` in case
diff --git a/lib/system/sysio.nim b/lib/system/sysio.nim
index aed17de80..5d68d112e 100644
--- a/lib/system/sysio.nim
+++ b/lib/system/sysio.nim
@@ -246,14 +246,14 @@ proc fwrite(buf: pointer, size, n: int, f: File): int {.
 proc readBuffer(f: File, buffer: pointer, len: int): int =
   result = fread(buffer, 1, len, f)
 
-proc readBytes(f: File, a: var openArray[int8], start, len: int): int =
+proc readBytes(f: File, a: var openArray[int8|uint8], start, len: int): int =
   result = readBuffer(f, addr(a[start]), len)
 
 proc readChars(f: File, a: var openArray[char], start, len: int): int =
   result = readBuffer(f, addr(a[start]), len)
 
 {.push stackTrace:off, profiler:off.}
-proc writeBytes(f: File, a: openArray[int8], start, len: int): int =
+proc writeBytes(f: File, a: openArray[int8|uint8], start, len: int): int =
   var x = cast[ptr array[0..1000_000_000, int8]](a)
   result = writeBuffer(f, addr(x[start]), len)
 proc writeChars(f: File, a: openArray[char], start, len: int): int =