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digitalmars.D.learn - Any example of using these Special Tokens?

reply Matthew Ong <ongbp yahoo.com> writes:
Hi,

I am not able make use of these 3 special tokens to print something.

writefln("gshared: %s",__gshared);
writefln("thread: %s",__thread);
writefln("traits: %s",__traits);

------------------------------------------------------------
rc\Sample.d(128): expression expected, not '__gshared'
src\Sample.d(129): expression expected, not '__thread'
src\Sample.d(130): found ')' when expecting '('
src\Sample.d(130): __traits(identifier, args...) expected
src\Sample.d(132): found '}' when expecting ','
src\Sample.d(146): expression expected, not 'EOF'
src\Sample.d(146): found 'EOF' when expecting ','
src\Sample.d(146): expression expected, not 'EOF'
src\Sample.d(146): found 'EOF' when expecting ','
src\Sample.d(146): expression expected, not 'EOF'
------------------------------------------------------------

Would some like to show me how this is done??

-- 
Matthew Ong
email: ongbp yahoo.com
May 25 2011
next sibling parent reply bearophile <bearophileHUGS lycos.com> writes:
Matthew Ong:

 I am not able make use of these 3 special tokens to print something.
 
 writefln("gshared: %s",__gshared);
 writefln("thread: %s",__thread);
 writefln("traits: %s",__traits);

They are keywords, so it's like writing: writefln("traits: %s", for);
 Would some like to show me how this is done??

What do you want to do? Bye, bearophile
May 25 2011
parent reply Matthew Ong <ongbp yahoo.com> writes:
On 5/25/2011 5:45 PM, bearophile wrote:
 Matthew Ong:

 I am not able make use of these 3 special tokens to print something.

 writefln("gshared: %s",__gshared);
 writefln("thread: %s",__thread);
 writefln("traits: %s",__traits);

They are keywords, so it's like writing: writefln("traits: %s", for);
 Would some like to show me how this is done??

What do you want to do? Bye, bearophile

Looking at if they are run time related debug variables, perhaps consider using them within a logging api. -- Matthew Ong email: ongbp yahoo.com
May 25 2011
parent dennis luehring <dl.soluz gmx.net> writes:
Am 25.05.2011 12:42, schrieb Matthew Ong:
 On 5/25/2011 5:45 PM, bearophile wrote:
  Matthew Ong:

  I am not able make use of these 3 special tokens to print something.

  writefln("gshared: %s",__gshared);
  writefln("thread: %s",__thread);
  writefln("traits: %s",__traits);

They are keywords, so it's like writing: writefln("traits: %s", for);
  Would some like to show me how this is done??

What do you want to do? Bye, bearophile

Looking at if they are run time related debug variables, perhaps consider using them within a logging api.

and what is the benefit over using libary functions? how many of this special vars will come (and pollute the global namespace...)
May 25 2011
prev sibling next sibling parent dennis luehring <dl.soluz gmx.net> writes:
Am 25.05.2011 10:29, schrieb Matthew Ong:
 Hi,

 I am not able make use of these 3 special tokens to print something.

 writefln("gshared: %s",__gshared);
 writefln("thread: %s",__thread);
 writefln("traits: %s",__traits);

 ------------------------------------------------------------
 rc\Sample.d(128): expression expected, not '__gshared'
 src\Sample.d(129): expression expected, not '__thread'
 src\Sample.d(130): found ')' when expecting '('
 src\Sample.d(130): __traits(identifier, args...) expected
 src\Sample.d(132): found '}' when expecting ','
 src\Sample.d(146): expression expected, not 'EOF'
 src\Sample.d(146): found 'EOF' when expecting ','
 src\Sample.d(146): expression expected, not 'EOF'
 src\Sample.d(146): found 'EOF' when expecting ','
 src\Sample.d(146): expression expected, not 'EOF'
 ------------------------------------------------------------

 Would some like to show me how this is done??

google is your friend, search for "__traits d" http://www.digitalmars.com/d/2.0/traits.html
May 25 2011
prev sibling parent Andrej Mitrovic <andrej.mitrovich gmail.com> writes:
I think __thread might be an alias for thread local. Maybe it was used
explicitly in D1 since D1 didn't have TLS by default?
May 25 2011