Hi, compiling this program with g++ 4.7.1 ... #include BOOST_STRONG_TYPEDEF(uint32_t, LINKID_T) int main() { LINKID_T lid = 0xffddee33; return 0; } I get error: conversion from 'unsigned int' to non-scalar type 'LINKID_T' requested Looking at the header, the strong typedef struct defines assignment from uint32_t to LINKID_T ... D & operator=(const T & rhs) { t = rhs; return *this;} ... so what gives? Cheers, Jono -- ------------------------------ This email, including any attachments, is only for the intended recipient. It is subject to copyright, is confidential and may be the subject of legal or other privilege, none of which is waived or lost by reason of this transmission. If you are not an intended recipient, you may not use, disseminate, distribute or reproduce such email, any attachments, or any part thereof. If you have received a message in error, please notify the sender immediately and erase all copies of the message and any attachments. Unfortunately, we cannot warrant that the email has not been altered or corrupted during transmission nor can we guarantee that any email or any attachments are free from computer viruses or other conditions which may damage or interfere with recipient data, hardware or software. The recipient relies upon its own procedures and assumes all risk of use and of opening any attachments. ------------------------------