id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 8991,A few implicit conversion compiler warnings,Jan Bouwer ,Antony Polukhin,"The following (trivial?) warnings were kindly highlighted by clang ^([#version version])^ - using diagnostic options as indicated in the [...]. File locations are in the format path:line:byte-column. I based these on the 1.54.0 release, as svn rev. 85329 did not compile for me at the time. * boost/lexical_cast.hpp:1693:50 **warning: implicit conversion changes signedness**: 'long' to 'size_t' (aka 'unsigned long') [-Wsign-conversion] {{{ end = begin + swprintf(begin, end-begin, ~~~~~~~~ ~~~^~~~~~ }}} * boost/lexical_cast.hpp:1703:50 **warning: implicit conversion changes signedness**: 'long' to 'size_t' (aka 'unsigned long') [-Wsign-conversion] {{{ end = begin + swprintf(begin, end-begin, ~~~~~~~~ ~~~^~~~~~ }}} * boost/lexical_cast.hpp:1711:50 **warning: implicit conversion changes signedness**: 'long' to 'size_t' (aka 'unsigned long') [-Wsign-conversion] {{{ end = begin + swprintf(begin, end-begin, ~~~~~~~~ ~~~^~~~~~ }}} * boost/lexical_cast.hpp:791:68 **warning: operand of ? changes signedness**: 'int' to 'unsigned int' & 'long' to 'unsigned long' [-Wsign-conversion] {{{ value < 0 ? 0u - static_cast(value) : value ^~~~~ }}} from: {{{ boost/lexical_cast.hpp:1627:52: note: in instantiation of function template specialization 'boost::detail::lcast_to_unsigned' requested here start = lcast_put_unsigned(lcast_to_unsigned(n), finish); ^ boost/lexical_cast.hpp:1816:66: note: in instantiation of function template specialization 'boost::detail::lexical_stream_limited_src, false>::shl_signed' requested here bool operator<<(int n) { return shl_signed(n); } ^ }}} and {{{ boost/lexical_cast.hpp:1627:52: note: in instantiation of function template specialization 'boost::detail::lcast_to_unsigned' requested here start = lcast_put_unsigned(lcast_to_unsigned(n), finish); ^ boost/lexical_cast.hpp:1817:66: note: in instantiation of function template specialization 'boost::detail::lexical_stream_limited_src, false>::shl_signed' requested here bool operator<<(long n) { return shl_signed(n); } }}} * boost/lexical_cast.hpp:1962:30 **warning: implicit conversion changes signedness**: 'utype' (aka 'unsigned int') to 'int' [-Wsign-conversion] {{{ output = out_tmp; ~ ^~~~~~~ }}} {{{ boost/lexical_cast.hpp:2032:74: note: in instantiation of function template specialization 'boost::detail::lexical_stream_limited_src, false>::shr_signed' requested here bool operator>>(int& output) { return shr_signed(output); } ^ }}} ==== [=#version ""clang --version""] {{{ Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn) Target: x86_64-apple-darwin12.4.0 Thread model: posix }}}",Bugs,closed,Boost 1.69,lexical_cast,Boost 1.54.0,Cosmetic,fixed,,