----- Original Message -----
From: "Terje Slettebų" <[EMAIL PROTECTED]>
> To do that (without changing the Boost unit test code), I made a few
> forwarding macros, like this:
>
> #define BOOST_CHECK_EQUAL_CP(a,b)\
>
>
BOOST_CHECKPOINT("BOOST_CHECK_EQUAL("##BOOST_STRINGIZE(a)##","##BOOST_STRING
> IZE(b)##")");\
> BOOST_CHECK_EQUAL(a,b)
1) BOOST_STRINGIZE(a) will not *legally* expand. (It looks like the type of
thing that Metrowerks will expand anyway though.) In any case,
token-pasting happens prior to rescanning the replacement list, so the
concatenations happen first. Which...
2) ...is undefined behavior: token-pasting yields multiple tokens.
Depending on how a particular preprocessor handles this, it might actually
cause BOOST_STRINGIZE to expand. What you want is this:
Fix: remove the concatenation operators. This will yield adjacent strings
which will already get concatenated (and do you mean BOOST_PP_STRINGIZE?):
#define BOOST_CHECK_EQUAL_CP(a, b) \
BOOST_CHECKPOINT( \
"BOOST_CHECK_EQUAL(" \
BOOST_PP_STRINGIZE(a) \
"," \
BOOST_PP_STRINGIZE(b) \
")" \
); \
BOOST_CHECK_EQUAL(a, b) \
/**/
Regards,
Paul Mensonides
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