Interactive I/O with ghc doesn't prompt until after reading
My students complained that the interactive program they were to write using Haskell would not issue its first prompt until after the first line of input had been entered. I enclose a tiny Haskell program that exhibits this behaviour in 6.2 (SPARC Solaris) and 6.4 (Intel Linux) and am told that it also happens in 6.6. I also show that it works fine in Hugs, HBC, and NCH98. (Mangled when I tried pasting it in. Stupid web forms.)
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Prelude |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Multiple |
| Architecture | Multiple |