diff options
Diffstat (limited to 'ghc/misc/examples/cats/hcat5.hs')
| -rw-r--r-- | ghc/misc/examples/cats/hcat5.hs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/ghc/misc/examples/cats/hcat5.hs b/ghc/misc/examples/cats/hcat5.hs new file mode 100644 index 0000000000..0a7a59f6b6 --- /dev/null +++ b/ghc/misc/examples/cats/hcat5.hs @@ -0,0 +1,19 @@ +module Main (mainPrimIO) where + +import PreludePrimIO + +mainPrimIO :: PrimIO () +mainPrimIO + = _ccall_ stg_getc (``stdin'' :: _Addr) + `thenPrimIO` \ (I# ch) -> + if ch <# 0# then -- SIGH: ch ==# ``EOF'' + returnPrimIO () + else + _ccall_ stg_putc (C# (chr# ch)) + (``stdout'' :: _Addr) + `seqPrimIO` + mainPrimIO + +-- 1,737,897 bytes/sec ( 600KB input) +-- 1,808,993 bytes/sec ( 9.3MB input) +-- 1,711,850 bytes/sec (25.5MB input) |