On 31/07/16 20:21 +0100, Jonathan Wakely wrote:
(I'm getting really annoyed with line numbers matching columns!)
testsuite/20_util/pair/cons/explicit_construct.cc is another one where this happens. If you remove a blank line near the top of the file it starts FAILing, because the error at explicit_construct.cc:55:40: matches a dg-error on line 40. Whitespace changes that cause testsuite FAILs are infuriating (and hard to identify sometimes). On IRC last week I proposed adding -fno-show-column to libstdc++-v3/scripts/testsuite_flags.in which solves the problem. Other people suggested I should tweak deajagnu to make it not match column numbers. I tried various things, and tried to understand how the front-end tests solve the problem, but simply adding -fno-show-column seemed the simplest and most robust. Better ideas would be welcome.
