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Re: [Boost-users] [Serialization]...

Surya Kiran Gullapalli

11 Mar 2010 11 Mar '10

9:29 a.m.

Hello all, I'm trying to match ordinal numbers (1st, 2nd, 3rd, 4th etc) like this. *xpr::as_xpr ("Some Text") * * >> xpr::repeat<1, 2>(_d) * * >> ("st"|"nd"|"rd"|"th") ;* Compilation fails at 3rd line with the following error error C2296: '|' : illegal, left operand has type 'const char [3]' ; what am i missing ? did I give the construct correctly ? Thanks in advance, Surya

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OvermindDL1

11 Mar 11 Mar

10:28 a.m.

On Thu, Mar 11, 2010 at 2:29 AM, Surya Kiran Gullapalli wrote:

...

>> ("st"|"nd"|"rd"|"th") ;

That is because "st"|"nd"|etc... you are trying to 'or' two string constants, that makes no sense in C++. You need to 'infect' the whole line by wrapping the first one with as_xpr as: >> (as_xpr("st")|"nd"|"rd"|"th") ;

Surya Kiran Gullapalli

10:57 a.m.

On Thu, Mar 11, 2010 at 15:58, OvermindDL1 wrote:

...

On Thu, Mar 11, 2010 at 2:29 AM, Surya Kiran Gullapalli wrote:

...
>> ("st"|"nd"|"rd"|"th") ;

That is because "st"|"nd"|etc... you are trying to 'or' two string constants, that makes no sense in C++. You need to 'infect' the whole line by wrapping the first one with as_xpr as: >> (as_xpr("st")|"nd"|"rd"|"th") ;

Thanks, it worked. I thought the first as_xpr would infect everything. but i was mistaken. Surya

OvermindDL1

12:26 p.m.

On Thu, Mar 11, 2010 at 3:57 AM, Surya Kiran Gullapalli wrote:

...

On Thu, Mar 11, 2010 at 15:58, OvermindDL1 wrote:

...
On Thu, Mar 11, 2010 at 2:29 AM, Surya Kiran Gullapalli wrote:

...
>> ("st"|"nd"|"rd"|"th") ;

That is because "st"|"nd"|etc... you are trying to 'or' two string constants, that makes no sense in C++. You need to 'infect' the whole line by wrapping the first one with as_xpr as: >> (as_xpr("st")|"nd"|"rd"|"th") ;

Thanks, it worked. I thought the first as_xpr would infect everything. but i was mistaken.

You enclosed all of those in parenthesis which created a new 'scope' (not by the technical definition, but it works here), thus you need to 're-infect' anew since they get run together before the external definition. :)

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OvermindDL1
Surya Kiran Gullapalli