[cfe-dev] printf-like function.
JF Knudsen via cfe-dev
cfe-dev at lists.llvm.org
Thu Mar 19 23:53:12 PDT 2020
Hi all,
I'm a printf-like function lover. I always found that better than doing
something like out << "blabla : " << var1 << ", blabla" << etc.
Now, I use a lot of different platforms and to be portable, I'm supposed
to use PRIxxx constants for portability. For me that half-breaks the
readability of printf format.
What about a new set of functions that'll be specified slightly
differently :
accepting %d for ANY number ? The compiler can modify the format
litteral at compile time to fit what's needed for that platform,
replacing %d by %hhd, %hd, %d, %ld, %lld, %hhu etc..
Replacing the litteral format at compile time prevents to modify the
vararg mechanism.
Of course, if format is not litteral : no replacement !
OR
2bis) some attributes could be passed on to this function so it'll know
what to expect at runtime. I'm guessing modifying vararg mechanism to
add attributes might be nearly impossible...
I'm interested of what would you all think about that ?
Thanks.
PS : we could do the same with %s that could accept char*, wchar_t*,
char16_t*, char32_t*.
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