https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77384
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-01-07
Ever confirmed|0 |1
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This only happens for C++11 and later.
Modified testcase that's valid in C++98 too:
#include <decimal/decimal>
#include <utility>
using std::decimal::decimal64;
std::pair<int, decimal64> x( 1, 1.5dd );
std::pair<int, decimal64> u( 1, decimal64(1.5dd) );
tmp$ g++ d64.cc
/tmp/cceiwvNA.s: Assembler messages:
/tmp/cceiwvNA.s:1386: Error: symbol `_ZNSt4pairIiDdEC1IiDdLb1EEEOT_OT0_' is
already defined
/tmp/cceiwvNA.s:1390: Error: symbol
`_ZSt7forwardIDdEOT_RNSt16remove_referenceIS0_E4typeE' is already defined
tmp$ g++ d64.cc -std=c++98
/usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crt1.o: In function
`_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
