I am using C++ Builder XE4.
I am trying to use a binary number such as 0b1
in my code.
Following is the code I tried:
void __fastcall TForm1::Button1Click(TObject *Sender)
{
int num = 0b11;
}
The above causes a compiler error:
Unit1.cpp(19): E2141 Declaration syntax error
Does C++Builder support binary numeration like this?
I confirmed that 0x11
works in C++Builder.
I also confirmed that 0b11
can be used in IDEOne using C++:
Binary notation of integer literals is a new feature in C++14 . However, no C++Builder version has a C++14 compiler at this time.
In XE4, the Win32 compiler and OSX compiler do not support C++11 at all (a 32bit C++11 compiler was added in 10.0 Seattle). The Win64 compiler supports C++11, though.
The current C++Builder compilers support only decimal, octal, and hex. See Embarcadero's documentation for details: Integer Constants
如果要编译它,则需要更新版本的C ++ Builder和C ++ 11编译器。
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