Re: Conversion to output ranges
Am 07.02.2012 16:50, schrieb Timon Gehr:
On 02/07/2012 04:49 PM, Timon Gehr wrote:
On 02/07/2012 02:35 PM, Mafi wrote:
Hi,
does anybody know how to bring std.conv.to or something similar to
output into an output range?
int a = 42;
char[25] buffer;
to!typeof(buffer[])(a, buffer[]);
I want to send these texts throw sockets. Therefore I'd like to reuse
the buffer.
Mafi
You could use std.format.formattedWrite.
import std.exception, std.format, std.stdio;
// I don't know if this already exists somewhere:
struct Filler(T:T[]){
this(T[] pl){payload = pl;}
size_t index=0;
T[] payload;
void put(const T[] s){
enforce(payload.length=index+s.length);
payload[index..index+s.length]=s;
index+=s.length;
}
void put(char s){
Should be 'void put(T s)'.
enforce(payload.length=index);
payload[index++]=s;
}
@property auto data(){return payload[0..index];}
}
auto filler(T)(T pl){return Filler!T(pl);}
void main(){
int a = 42;
char[25] buffer;
auto f = filler(buffer[]);
formattedWrite(f,%s,a);
writeln(f.data);
}
Thanks :) This solution seems to work.
I just wanted to point out that I forgot the ampersand and this was hard
to track down. I seemed to work but index wasn't incremented so I always
got an empty slice.
Mafi
Conversion to output ranges
Hi, does anybody know how to bring std.conv.to or something similar to output into an output range? int a = 42; char[25] buffer; to!typeof(buffer[])(a, buffer[]); I want to send these texts throw sockets. Therefore I'd like to reuse the buffer. Mafi
Re: Conversion to output ranges
On 02/07/2012 02:35 PM, Mafi wrote:
Hi,
does anybody know how to bring std.conv.to or something similar to
output into an output range?
int a = 42;
char[25] buffer;
to!typeof(buffer[])(a, buffer[]);
I want to send these texts throw sockets. Therefore I'd like to reuse
the buffer.
Mafi
You could use std.format.formattedWrite.
import std.exception, std.format, std.stdio;
// I don't know if this already exists somewhere:
struct Filler(T:T[]){
this(T[] pl){payload = pl;}
size_t index=0;
T[] payload;
void put(const T[] s){
enforce(payload.length=index+s.length);
payload[index..index+s.length]=s;
index+=s.length;
}
void put(char s){
enforce(payload.length=index);
payload[index++]=s;
}
@property auto data(){return payload[0..index];}
}
auto filler(T)(T pl){return Filler!T(pl);}
void main(){
int a = 42;
char[25] buffer;
auto f = filler(buffer[]);
formattedWrite(f,%s,a);
writeln(f.data);
}
Re: Conversion to output ranges
On 02/07/2012 04:49 PM, Timon Gehr wrote:
On 02/07/2012 02:35 PM, Mafi wrote:
Hi,
does anybody know how to bring std.conv.to or something similar to
output into an output range?
int a = 42;
char[25] buffer;
to!typeof(buffer[])(a, buffer[]);
I want to send these texts throw sockets. Therefore I'd like to reuse
the buffer.
Mafi
You could use std.format.formattedWrite.
import std.exception, std.format, std.stdio;
// I don't know if this already exists somewhere:
struct Filler(T:T[]){
this(T[] pl){payload = pl;}
size_t index=0;
T[] payload;
void put(const T[] s){
enforce(payload.length=index+s.length);
payload[index..index+s.length]=s;
index+=s.length;
}
void put(char s){
Should be 'void put(T s)'.
enforce(payload.length=index);
payload[index++]=s;
}
@property auto data(){return payload[0..index];}
}
auto filler(T)(T pl){return Filler!T(pl);}
void main(){
int a = 42;
char[25] buffer;
auto f = filler(buffer[]);
formattedWrite(f,%s,a);
writeln(f.data);
}
Re: Conversion to output ranges
On 02/07/2012 04:50 PM, Timon Gehr wrote:
On 02/07/2012 04:49 PM, Timon Gehr wrote:
On 02/07/2012 02:35 PM, Mafi wrote:
Hi,
does anybody know how to bring std.conv.to or something similar to
output into an output range?
int a = 42;
char[25] buffer;
to!typeof(buffer[])(a, buffer[]);
I want to send these texts throw sockets. Therefore I'd like to reuse
the buffer.
Mafi
You could use std.format.formattedWrite.
import std.exception, std.format, std.stdio;
// I don't know if this already exists somewhere:
struct Filler(T:T[]){
this(T[] pl){payload = pl;}
size_t index=0;
T[] payload;
void put(const T[] s){
enforce(payload.length=index+s.length);
payload[index..index+s.length]=s;
index+=s.length;
}
void put(char s){
Should be 'void put(T s)'.
Just noticed that this overload is not even necessary.
enforce(payload.length=index);
payload[index++]=s;
}
@property auto data(){return payload[0..index];}
}
auto filler(T)(T pl){return Filler!T(pl);}
void main(){
int a = 42;
char[25] buffer;
auto f = filler(buffer[]);
formattedWrite(f,%s,a);
writeln(f.data);
}
Re: Conversion to output ranges
Maybe std.outbuffer... auto buffer = new OutBuffer(); int a = 42; buffer.write(a); byte[] bytes = cast(byte[]) buffer.toBytes(); ubyte[] ubytes = buffer.toBytes(); Pedro Lacerda 2012/2/7 Mafi m...@example.org Hi, does anybody know how to bring std.conv.to or something similar to output into an output range? int a = 42; char[25] buffer; to!typeof(buffer[])(a, buffer[]); I want to send these texts throw sockets. Therefore I'd like to reuse the buffer. Mafi
