On 05/10/2010 12:40, Bob Cowdery wrote:
On 05/10/2010 12:13, Denis Koroskin wrote:
On Tue, 05 Oct 2010 15:08:39 +0400, Bob Cowdery
<b...@bobcowdery.plus.com> wrote:
On 05/10/2010 12:04, Denis Koroskin wrote:
On Tue, 05 Oct 2010 14:57:22 +0400, Bob Cowdery
<b...@bobcowdery.plus.com> wrote:
On 05/10/2010 11:45, Denis Koroskin wrote:
On Tue, 05 Oct 2010 14:23:47 +0400, Bob Cowdery
<b...@bobcowdery.plus.com> wrote:
I can't seem to get any sense out of associative arrays. Even the
simplest definition won't compile so I must be doing something
daft.
int[string] aa = ["hello":42];
Error: non-constant expression ["hello":42]
What exactly is not constant about this. The example is straight
out the
book. Using D 2.0.
bob
What exactly compiler version are you using (run dmd with no args)?
Works perfectly fine here (dmd2.049).
It says 2.049. How odd. I've got a fair amount of code and
everything
else compiles fine.
Can you please post complete code snippet that fails to compile?
Here is the code I used to test:
module aa;
import std.stdio;
void main()
{
int[string] aa = ["hello":42];
writeln(aa["hello"]);
}
# dmd -run aa.d
Ah! It's some other code below it that is not giving an error but
causing the error above. So the compiler is getting confused. What I
was
actually trying to do was create an associative array with a string
as a
key and a Tuple as the value. Now
auto aa = [
"some string": (100.0, 6100.0)
]
compiles but is clearly wrong and gives rise to other errors. Does
anyone know the correct way to define this and then access the tuple.
import std.stdio;
import std.typecons;
void main()
{
auto aa = ["hello": tuple(100.0, 6100.0)];
auto result = aa["hello"];
writeln(result.field[0], " ", result._1); // primary and
alternative way
}
Thanks. I've established that works for me and also that the actual
array I'm using also works in the test program but it won't compile in
the real program. I've commented everything else out of the file and
just left...
import std.typecons;
auto A_RX_FILT = [
"6K0": tuple(100.0, 6100.0),
"2K4": tuple(300.0, 2700.0),
"2K1": tuple(300.0, 2400.0),
"1K0": tuple(300.0, 1300.0),
"500": tuple(500.0, 1000.0),
"250": tuple(600.0, 850.0),
"100": tuple(700.0, 800.0)
];
I get an error on every line:
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(100,6100) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(300,2700) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(300,2400) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(300,1300) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(500,1000) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(600,850) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(700,800) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(100,6100) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(300,2700) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(300,2400) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(300,1300) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(500,1000) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(600,850) at
compile time|
Definitions\dspDefs.d|51|Error: cannot evaluate tuple(700,800) at
compile time|
||=== Build finished: 14 errors, 0 warnings ===|
This is a bit worrying now. I moved the array into the file that uses it
but I still get the same errors. Any ideas?
Oh dear, this is getting worse and worse. I've still got problems with a
simple definition. If I take out the one with the tuple and leave in
this one:
enum E_MODE
{
LSB, // 0
USB, // 1
DSB, // 2
CWL, // 3
CWU, // 4
FMN, // 5
AM, // 6
DIGU, // 7
SPEC, // 8
DIGL, // 9
SAM, // 10
DRM // 11
}
// Associative array for translation
auto A_MODE = [
"LSB": E_MODE.LSB,
"USB": E_MODE.USB,
"DSB": E_MODE.DSB,
"CWL": E_MODE.CWL,
"CWU": E_MODE.CWU,
"FMN": E_MODE.FMN,
"AM": E_MODE.AM,
"DIGU": E_MODE.DIGU,
"SPEC": E_MODE.SPEC,
"DIGL": E_MODE.DIGL,
"SAM": E_MODE.SAM,
"DRM": E_MODE.DRM
];
I get:
Definitions\dspDefs.d|25|Error: non-constant expression
["LSB":cast(E_MODE)0,"USB":cast(E_MODE)1,"DSB":cast(E_MODE)2,"CWL":cast(E_MODE)3,"CWU":cast(E_MODE)4,"FMN":cast(E_MODE)5,"AM":cast(E_MODE)6,"DIGU":cast(E_MODE)7,"SPEC":cast(E_MODE)8,"DIGL":cast(E_MODE)9,"SAM":cast(E_MODE)10,"DRM":cast(E_MODE)11]|
||=== Build finished: 1 errors, 0 warnings ===|
Something is seriously broken here.
