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Re: svn commit: r40377 - trunk/subversion/libsvn_ra_serf

From: Daniel Shahaf <d.s_at_daniel.shahaf.name>
Date: Thu, 5 Nov 2009 21:22:05 +0200 (Jerusalem Standard Time)

Paul T. Burba wrote on Wed, 4 Nov 2009 at 19:26 -0800:
> Author: pburba
> Date: Wed Nov 4 19:26:27 2009
> New Revision: 40377
>
> Log:
> Follow-up to r38105, fix some diabolical ra_serf failures in the merge tests.
>
> * subversion/libsvn_ra_serf/util.c
> (svn_ra_serf__handle_xml_parser): Do not depend on order of evaluation
> of the arguments in the call to svn_error_compose_create() since this is
> not defined by the C standard

This bitten us a few times already. Perhaps we could add a macro that
forces the right order? Or enable a compiler warning for this?

e.g.,

#define svn_error_compose_create2(errvar1, errvar2, expr1, expr2) \
    (errvar1 = (expr1), errvar2 = (expr2), \
     svn_error_compose_create(errvar1, errvar2))

#define svn_error_compose_create2(errvar, expr1, expr2) \
  do { \
    svn_error_t __err1 = (expr1); \
    svn_error_t __err2 = (expr2); \
    errvar = svn_error_compose_create(__err1, __err2); \
  } while (0)

???

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Received on 2009-11-05 20:22:17 CET

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