Hi, I have just begun using boost with gcc-3.2 on a vanilla PC-cygwin platform. Up until deciding to use boost I have been compiling with warnings treated as errors. I am getting warning too many 'l' suffixes in integer constant. See output below. Does anyone know what is going on here? The lines in the boost header file of interest use ULL as suffix. I presume this is intended to mean unsigned long long though I could not track down the #define (ULL being a rather common string). I have discovered that using ull in the preprocessor gives this warning though it is legal when declaring a constant in the language itself. This looks like an inconsistency within gcc. Perhaps because long long isn't officially in ISO C++ yet only C99 (correct me if I'm wrong). I managed to remove all but two occurances of the warning by taking the dubious action of changing ull to ul in boost in cstdint.h & limits.h but I could not track down the remaining instances. Are these suffixes necessary for these constants anyway? If the constant is big enough to need to be a long long the compiler should detect that and do any promotions necessary before comparison, shouldn't it? If its just for buggy compilers (assuming gcc isn't one of them in this case) can't ULL be #defined away? Where can I find this definition? Apologies for wasting bandwidth with this newbie error but can someone recommend a preferred course of action. Thanks & regards, Bruce A. (not actually using long longs in this particular application - yet) gcc -c -x c++ -gstabs -fcheck-new -fstrict-aliasing -fstack-check -frtti -Wall - Wno-long-long -pedantic ReadWord.cpp -o ReadWord.o -I../General -I../Boost/boost_1_29_0 In file included from ../Boost/boost_1_29_0/boost/regex/config.hpp:95, from ../Boost/boost_1_29_0/boost/cregex.hpp:27, from ../Boost/boost_1_29_0/boost/regex.h:26, from ReadWord.cpp:18: ../Boost/boost_1_29_0/boost/cstdint.hpp:202:49: warning: too many 'l' suffixes in integer constant ../Boost/boost_1_29_0/boost/cstdint.hpp:202:105: warning: too many 'l' suffixes in integer constant ../Boost/boost_1_29_0/boost/cstdint.hpp:202:105: warning: too many 'l' suffixes in integer constant ../Boost/boost_1_29_0/boost/cstdint.hpp:202:123: warning: too many 'l' suffixes in integer constant ../Boost/boost_1_29_0/boost/cstdint.hpp:202:195: warning: too many 'l' suffixes in integer constant Note: warning: ISO C++ does not support `long long' warning: ISO C89 forbids long long integer constants are suppressed by -Wno-long-long ============================================================================ Any opinions expressed in this e-mail are those of the individual and not necessarily those of Tyco Safety Products. Any prices for the supply of goods or services are only valid if supported by a formal written quotation. This e-mail and any files transmitted with it, including replies and forwarded copies (which may contain alterations) subsequently transmitted from Tyco Saftey Products are confidential and solely for the use of the intended recipient. If you are not the intended recipient or the person responsible for delivery to the intended recipient, be advised that you have received this e-mail in error and that any use is strictly prohibited. In this event, please notify us via e-mail at 'helpdesk.tepg@tycoint.com' or telephone on 0121 255 6499 and then delete the e-mail and any copies of it. ============================================================================