Boost C++ Libraries: Ticket #831: regex v1.33.1 match_results::format compile error in vc6

status changed

John Maddock — Sat, 17 Feb 2007 17:22:46 GMT

status assigned → closed

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Unfortunately your compiler is known to be so buggy in this area that there's probably not much that can be done :-(
I assume you can't use regex_replace instead?  That is known to work with VC6.
Alternatively if you take a peak at the code inside regex_replace you'll find that it basically has to do what you're trying to do, so you may find a workaround in there that will also work for your code.
HTH,
John Maddock.

jeffreyren — Mon, 19 Feb 2007 01:34:03 GMT

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Thanks for your reply.
In fact I have tested regex_replace and it's OK.
The only question regex_replace will replace first or all the occurrences in the string, what I want is to replace the last occurrence.
BTW, is VC6+STLPort can support regex compile in vc6?

John Maddock — Mon, 19 Feb 2007 13:54:58 GMT

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Yes, regex_replace will replace the first occurance or all of them, not the last only.
And yes it works with VC6+STLport as well.
Looking at your error, the following code compiles OK for me with VC6, do you have the latest compiler service packs (it's up 5 or 6 now I think) installed?  Otherwise it might be a case of fiddling around with your compiler settings / and or code until you find a combination that doesn't choke the compiler.
John.
Here's the code that works for me:
#include <boost/regex.hpp>
int main()
{
using namespace std;
using namespace boost;
string strfind = "b(.)";
string Str = "abc";
string fmt = "x\\1y";
regex reg(strfind);
smatch match;
bool bFind = regex_search(Str, match, reg, match_default);
if(bFind)
{
  string Rep = match.format(fmt, format_default);
}
return 0;
}

jeffreyren — Wed, 21 Feb 2007 01:50:44 GMT

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Thanks John, I have found out why.
I'm using VC6 SP6.
Yes, you code works fine for general C++ project VC6 SP6.
But the compiler error occurs only in VC6 mfc-relevant project.
So the better choice seems to be vc6+stlport.
Thanks again for your time!
Jeffrey