id summary reporter owner description type status milestone component version severity resolution keywords cc 3577 feature not implemented as documented (or vice versa) Guido Saßmannshausen Samuel Krempp according to http://www.boost.org/doc/libs/1_40_0/libs/format/doc/format.html#printf_directives, tabulators are specified by enclosing curly braces, which rather are pipe-symbols in the current implementation. (read: %{nt} vs. %|nt|). Small hicup, but quite a bit of surprise and confusion, if read by the uninitiated (causes formatsyntax exceptions) Bugs closed Boost 1.41.0 format Boost 1.40.0 Problem fixed tabulator, printf syntax