• Lodovico Giaretta (10/10) Oct 19 2016 Hi!
• Basile B. (26/36) Oct 19 2016 No, but they can be generated with a string mixin:
• Johan Engelen (9/13) Oct 19 2016 Perhaps not what you are looking for but on the commandline:

Lodovico Giaretta <lodovico giaretart.net> writes:

Hi!

A simple question: is there a way to list all defined version 
specifications?

Something like:

     pragma(msg, __traits(allVersions));

Example output (DMD on Ubuntu x64, release build):

     [all, D_InlineAsm_X86_64, X86_64, Posix, linux, DigitalMars, 
CRuntime_Glibc, D_Version2, LittleEndian, D_LP64, D_HardFloat, 
D_SIMD, D_NoBoundsChecks, ELFv2]

Thank you in advance.

Basile B. <b2.temp gmx.com> writes:

On Wednesday, 19 October 2016 at 10:25:51 UTC, Lodovico Giaretta 
wrote:
 Hi!

 A simple question: is there a way to list all defined version 
 specifications?

 Something like:

     pragma(msg, __traits(allVersions));

 Example output (DMD on Ubuntu x64, release build):

     [all, D_InlineAsm_X86_64, X86_64, Posix, linux, 
 DigitalMars, CRuntime_Glibc, D_Version2, LittleEndian, D_LP64, 
 D_HardFloat, D_SIMD, D_NoBoundsChecks, ELFv2]

 Thank you in advance.

No, but they can be generated with a string mixin:

static __gshared string[] definedVersions;

enum predefinedVersions = [
	"ARM_Thumb","assert","ELFv1","ELFv2",
	"HPPA","HPPA64","Posix","unittest",
	"Win32","Win64","Windows","X86","X86_64"
];

alias addDefinedVer = (ver) => `version(`~ ver ~`) 
definedVersions~="`
     ~ ver ~ `";`;

string genDefinedVersions()
{
     import std.meta: aliasSeqOf;
     import std.range: iota;
     string result;
     foreach(i; aliasSeqOf!(iota(0, predefinedVersions.length)))
         result ~= addDefinedVer(predefinedVersions[i]);
     return result;
}

void main()
{
     mixin(genDefinedVersions);
}

The problem being that they are not available at compile time.

Johan Engelen <j j.nl> writes:

On Wednesday, 19 October 2016 at 10:25:51 UTC, Lodovico Giaretta 
wrote:
 Hi!

 A simple question: is there a way to list all defined version 
 specifications?

Perhaps not what you are looking for but on the commandline:

  bin/ldc2 -v test.d

...
predefs   LDC all D_Version2 assert X86_64 D_InlineAsm_X86_64 
D_HardFloat
           LittleEndian D_LP64 D_PIC OSX darwin Posix D_ObjectiveC 
LDC_LLVM_309

-Johan