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| author | Araq <rumpf_a@web.de> | 2014-01-19 01:31:45 +0100 |
|---|---|---|
| committer | Araq <rumpf_a@web.de> | 2014-01-19 01:31:45 +0100 |
| commit | cde9e5d64421e34d7d844c048213f01c40af5dd7 (patch) | |
| tree | 9edd34698a3f4f150ad9ac937ff4de594457c047 /lib/pure | |
| parent | a59939d29500f7a00cfd45b4990c5e34a9548add (diff) | |
| parent | f4b81ba92bdf413c70a2276b327bf7e0f433ba73 (diff) | |
| download | Nim-cde9e5d64421e34d7d844c048213f01c40af5dd7.tar.gz | |
merge master into devel
Diffstat (limited to 'lib/pure')
| -rw-r--r-- | lib/pure/endians.nim | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/pure/endians.nim b/lib/pure/endians.nim index 34270b320..73017464d 100644 --- a/lib/pure/endians.nim +++ b/lib/pure/endians.nim @@ -34,14 +34,26 @@ proc swapEndian32*(outp, inp: pointer) = o[2] = i[1] o[3] = i[0] +proc swapEndian16*(outp, inp: pointer) = + ## copies `inp` to `outp` swapping bytes. Both buffers are supposed to + ## contain at least 2 bytes. + var + i = cast[cstring](inp) + o = cast[cstring](outp) + o[0] = i[1] + o[1] = i[0] + when system.cpuEndian == bigEndian: proc littleEndian64*(outp, inp: pointer) {.inline.} = swapEndian64(outp, inp) proc littleEndian32*(outp, inp: pointer) {.inline.} = swapEndian32(outp, inp) + proc littleEndian16*(outp, inp: pointer) {.inline.} = swapEndian16(outp, inp) proc bigEndian64*(outp, inp: pointer) {.inline.} = copyMem(outp, inp, 8) proc bigEndian32*(outp, inp: pointer) {.inline.} = copyMem(outp, inp, 4) + proc bigEndian16*(outp, inp: pointer) {.inline.} = copyMem(outp, inp, 2) else: proc littleEndian64*(outp, inp: pointer) {.inline.} = copyMem(outp, inp, 8) proc littleEndian32*(outp, inp: pointer) {.inline.} = copyMem(outp, inp, 4) + proc littleEndian16*(outp, inp: pointer){.inline.} = copyMem(outp, inp, 2) proc bigEndian64*(outp, inp: pointer) {.inline.} = swapEndian64(outp, inp) proc bigEndian32*(outp, inp: pointer) {.inline.} = swapEndian32(outp, inp) - + proc bigEndian16*(outp, inp: pointer) {.inline.} = swapEndian16(outp, inp) |