Re: XS: returning a 64-bit unsigned int?

This works as desired for me:

void modSV( SV *ref ) {
    SV *sv = SvRV( ref );
    unsigned __int64 uv = 9223372036854775809ull;

    sv_setuv(sv, uv);
}
[download]

Outputs:

SV = IV(0x381af90) at 0x381afa0
  REFCNT = 1
  FLAGS = (PADMY,IOK,pIOK)
  IV = 123

SV = IV(0x381af90) at 0x381afa0
  REFCNT = 1
  FLAGS = (PADMY,IOK,pIOK,IsUV)
  UV = 9223372036854775809
[download]

Haven't yet investigated why/where your approach falls down.

Cheers,
Rob

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Re^2: XS: returning a 64-bit unsigned int? by BrowserUk (Patriarch) on Sep 27, 2011 at 06:53 UTC
Perfect, thank you. ( Why on earth is that documented under SV-Body-Allocation and not SV-Manipulation-Functions? ) Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]
Re^3: XS: returning a 64-bit unsigned int? by ikegami (Patriarch) on Sep 27, 2011 at 07:27 UTC
`sv_setuv_mg(sv, uv);` is actually what you want unless you follow the `sv_setuv(sv, uv);` with `SvSETMAGIC(sv);`.	[reply] [d/l] [select]
Re^4: XS: returning a 64-bit unsigned int? by BrowserUk (Patriarch) on Sep 27, 2011 at 07:31 UTC
Are you sure? (And can you explain why magic is needed?) Because it seems to work just fine without any magic? Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]
Re^5: XS: returning a 64-bit unsigned int? by ikegami (Patriarch) on Sep 27, 2011 at 07:56 UTC