I am not very good with pointers some times it confuses me. The dim variable is
a pointer to an array of integer.
int *dim;
dim = new int[2];
dim[0] = 6;
dim[1] = 12;
and in this case it points to the address of the first element. Please correct
me if I am wrong.
data->put(&dataOut[0], *dim);
I find this signature strange because how the put method can determine the
length of the counts variable. Any way If I change the method as you suggest I
will get compilation error
simple_xy_wr2.cpp:60: error: call of overloaded ‘put(int*, int*&)’ is ambiguous
/usr/include/netcdfcpp.h:239: note: candidates are: NcBool NcVar::put(const
int*, long int, long int, long int, long int, long int) <near match>
/usr/include/netcdfcpp.h:241: note: NcBool NcVar::put(const
long
int*, long int, long int, long int, long int, long int) <near match>
/usr/include/netcdfcpp.h:253: note: NcBool NcVar::put(const
int*, const long int*) <near match>
/usr/include/netcdfcpp.h:254: note: NcBool NcVar::put(const
long
int*, const long int*) <near match>
Regards
________________________________
From: Stuart Levy <slevy@xxxxxxxxxxxxxxxxx>
To: salah jubeh <s_jubeh@xxxxxxxxx>
Cc: "netcdfgroup@xxxxxxxxxxxxxxxx" <netcdfgroup@xxxxxxxxxxxxxxxx>
Sent: Wed, November 10, 2010 12:40:07 AM
Subject: Re: [netcdfgroup] Fw: NcVar put method
One thing: you mention you intend to use the signature
NcBool put(const ....* vals, const long* counts)
but when you call
data->put(&dataOut[0], *dim);
(note the "*dim" which dereferences to a long, rather than long *)
it'll call a different member function, namely
NcBool put( const int* vals, long c0=0, long c1=0, ... )
Instead you'd probably want
data->put(&dataOut[0], dim);
Right?
On Tue, Nov 09, 2010 at 03:14:36PM -0800, salah jubeh wrote:
> Hello Sjur,
>
> I used set_cur(), but there is no effect. and I checked the return value of
> the
>
> put method and it was true which means data is written but it is not.
>
> Regards
>
>
> ________________________________
> From: Sjur Kolberg <Sjur.A.Kolberg@xxxxxxxxx>
> To: salah jubeh <s_jubeh@xxxxxxxxx>; "netcdfgroup@xxxxxxxxxxxxxxxx"
> <netcdfgroup@xxxxxxxxxxxxxxxx>
> Sent: Tue, November 9, 2010 8:17:58 PM
> Subject: RE: [netcdfgroup] Fw: NcVar put method
>
>
> Salah,
>
> I think you might have to use set_cur() before the second call to put(),
> which
>I
>
> believe now tries to continue adding values after the ones you already stored
> with the first put(). Set_cur() with empty brackets sets the file pointer
> back
> to 0. If I’m correct, the second put() will also work if you comment out the
> first...
>
> Hope this helps,
>
> Sjur K :-)
>
>
> From:netcdfgroup-bounces@xxxxxxxxxxxxxxxx
> [mailto:netcdfgroup-bounces@xxxxxxxxxxxxxxxx] On Behalf Of salah jubeh
> Sent: 9. november 2010 16:49
> To: netcdfgroup@xxxxxxxxxxxxxxxx
> Subject: [netcdfgroup] Fw: NcVar put method
>
> Sorry for sending this a gain
>
> ----- Forwarded Message ----
> From:salah jubeh <s_jubeh@xxxxxxxxx>
> To: support-netcdf@xxxxxxxxxxxxxxxx
> Sent: Mon, November 8, 2010 12:58:41 PM
> Subject: NcVar put method
> I am trying to use this method signature -NcBool put(const ....* vals, const
> long* counts)-; but I have a problem , can some one please tell me what is
> my
> mistake .
>
> Why - data->put(&dataOut[0], *dim);- is not working. Please see the code.
>
>
> #include <iostream>
> #include <netcdfcpp.h>
>
> using namespace std;
>
> // We are writing 2D data, a 6 x 12 grid.
> static const int NDIMS = 2;
> static const int NX = 6;
> static const int NY = 12;
>
> // Return this in event of a problem.
> static const int NC_ERR = 2;
>
> int main(void)
> {
> // Different ways to write arrays
>
> int dataOut[NX * NY];
> int dataOut2[NX] [NY];
>
> // Create some pretend data. Note that dataOut and dataOut2 are
> identical...!!!
> for(int i = 0; i < NX; i++)
> for(int j = 0; j < NY; j++){
> dataOut[i * NY +j] = (i+1) * (j+1);
> dataOut2[i][j] = (i+1) * (j+1);
> }
>
>
> // Create the file.
> NcFile dataFile("simple_xy.nc", NcFile::Replace);
>
> if (!dataFile.is_valid())
> {
> cout << "Couldn't open file!\n";
> return NC_ERR;
> }
>
> NcDim* xDim = dataFile.add_dim("x", NX);
> NcDim* yDim = dataFile.add_dim("y", NY);
>
>
> const NcDim* all[2] ;
> all[0] = xDim;
> all[1] = yDim;
>
> int *dim;
> dim = new int[2];
> dim[0] = 6;
> dim[1] = 12;
>
> NcVar *data = dataFile.add_var("data", ncInt, 2, all);
> NcVar *data2 = dataFile.add_var("data2", ncInt, 2, all);
>
> // This works fine and data and data2 are identical
> // data->put(&dataOut[0],NX, NY);
> data2->put(&dataOut2[0][0], NX, NY);
>
> // try to use another signature
>
> data->put(&dataOut[0], *dim); //nothing is written
>
> cout << "*** SUCCESS writing example file simple_xy.nc!" << endl;
>
> return 0;
> }
>
>
>
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