gcc extension versus external library

Hi All, I'd like to know the performance differences between any gcc extension and other external library I link it to my code as I linked Intel's DFP library to my code and I used the gcc extension for the DFP in another code but with the same structure and I found the Intel's code is faster t

GCC's Decimal Floating Point extension problem

 Hi All, I'm trying to write a small program to check the decimal floating point gcc extension but I encountered some problems The program just converts a _Decimal64 number to double to print it and I used the function (double __bid_truncdddf (_Decimal64 a) as the gnu online docs show) #includ