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_bit_scan_forward


I am new to Linux, I am using Kubuntu (AMD64) with KDevelop. I try to
migrate a VC++ project to Linux. I am having problems with the
built-in function _Bit_scan_forward.

1) I can't find a headerfile defining this function.
2) If I define it myself, I get a link error: unresolved reference

please help
Feike Boomstra


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