DataMapFwrite

Syntax

int DataMapFwrite(FILE *fp,struct DataMap *ptr);

Header

general/dmap.h

Library

dmap

Description

The DataMapFwrite function writes a DataMap data structure to an open stream.

The structure is written to the open file with the descriptor give by the argument fp.

The structure is pointed to by the argument ptr.

Returns

Returns the number of bytes written to the file. On error, (-1) is returned.

Errors

On error, (-1) is returned.

Example

Source Code: DataMapFwrite.c

/* DataMapFwrite.c
   ===============
   Author: R.J.Barnes
 Copyright (c) 2012 The Johns Hopkins University/Applied Physics Laboratory

This file is part of the Radar Software Toolkit (RST).

RST is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.

Modifications:

*/


#include <stdio.h>
#include <stdlib.h>

#include "rtypes.h"
#include "dmap.h"



int main(int argc,char *argv[]) {

  int t,n;

  float set[3]={0.1,0.2,10.2};
  int value;

  int32 dim=1;
  int32 rng[1]={3};

  struct DataMap *dmap;

  dmap=DataMapMake();

  DataMapAddArray(dmap,"set",DATAFLOAT,dim,rng,&set);
  DataMapAddScalar(dmap,"value",DATAINT,&value);

  for (t=0;t<100;t++) {
    for (n=0;n<3;n++) set[n]=set[n]+0.1;
    DataMapFwrite(stdout,dmap);
  }
  DataMapFree(dmap);
  return 0;

}