On 21/07/2021 16:56, Stefano Gragnani via Boost-users wrote:
ok things are better but i still get errors:
> Executing task: g++-11 -g -I/usr/local/Cellar/boost/1.76.0/include/ -I/usr/local/include/ -L/usr/local/Cellar/boost/1.76.0/lib/ -L/usr/local/Cellar/gcc/11.1.0_1/lib/gcc/11/ -L/usr/local/Cellar/gmp/6.2.1/lib/ -L/usr/local/Cellar/mpfr/4.1.0/lib/ -std=gnu++20 -lmpfr -lgmp -lquadmath -lboost_system -lboost_filesystem '-fext-numeric-literals' float128_example.cpp -o main <
float128_example.cpp: In function 'int main()':
float128_example.cpp:186:20: error: call of overloaded 'exp(__float128)' is ambiguous
186 | float128 e1 = exp(1.Q); // Note argument to exp is type float128.
| ~~~^~~~~
The compiler is quite correct: there are no std lib functions for the built in type __float128, there are however for boost::multiprecision::float128 which is the type you should be using throughout.
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