Syntax for printing @ using Format is completely incompatible between OCaml 3.12.1 and OCaml 4.00.1+dev #6024
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Comment author: @yakobowski The behavior in the trunk was probably implemented when #5973 was fixed. |
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Comment author: @damiendoligez Fixed in trunk (rev 13713). |
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Original bug ID: 6024
Reporter: @yakobowski
Status: closed (set by @damiendoligez on 2013-05-29T15:56:49Z)
Resolution: fixed
Priority: high
Severity: block
Version: 4.00.1
Fixed in version: 4.01.0+dev
Category: standard library
Monitored by: @gasche bobot "Julien Signoles" prevosto
Bug description
Objective Caml version 3.12.1
Format.printf "@@";;
@- : unit = ()
Format.printf "%@";;
Error: Bad conversion %@, at char number 0 in format string ``%@''
Format.printf "@@";;
@- : unit = ()
Format.printf "%@";;
@- : unit = ()
Format.printf "%@";;
@- : unit = ()
Format.printf "@@";;
Exception:
Invalid_argument
"Format.fprintf: bad format ``@@'', giving up at character number 1 (@).".
Furthermore, the logic beyond %@ is dubious at best, as % is used to escape special Printf characters, which is not the case for @.
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