libdspl-2.0/dspl/src/inout.c

/*
* Copyright (c) 2015-2018 Sergey Bakhurin
* Digital Signal Processing Library [http://dsplib.org]
*
* This file is part of DSPL.
*  
* is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* DSPL 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
*/


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



/**************************************************************************************************
Print DSPL info
**************************************************************************************************/
void DSPL_API dspl_info()
{
    printf("\n\n        D S P L - 2.0\n");
    printf("        version 2.18.5.3\n");
    printf("\n        Сopyright (C) 2015-2018\n");
    printf("        Sergey Bakhurin        www.dsplib.org\n\n");
}






/**************************************************************************************************
Write a real array to the binary file "fn" 
***************************************************************************************************/
int DSPL_API writebin(void* x, int n, int dtype, char* fn)
{
	int k, res;
	FILE* pFile = NULL;
	
	if(!x)
		return ERROR_PTR;
	if(n < 1)
		return ERROR_SIZE;
	if(!fn)
		return  ERROR_FNAME;
	
	pFile = fopen(fn, "wb");
	if(pFile == NULL)
	    return ERROR_FOPEN;
		

	if(fwrite(&dtype, sizeof(int), 1, pFile) != 1)
    {   
        res = ERROR_FWRITE_SIZE;
        goto exit_label;
    }

	
    if(fwrite(&n, sizeof(int),   1, pFile) != 1)
    {   
        res = ERROR_FWRITE_SIZE;
        goto exit_label;
    }

	k = 1;
	if(fwrite(&k, sizeof(int),   1, pFile) != 1)
    {   
        res = ERROR_FWRITE_SIZE;
        goto exit_label;
    };

    switch(dtype)
    {
        case DAT_DOUBLE:
            if(fwrite((double*)x, sizeof(double), n, pFile) != n)
            {   
                res = ERROR_FWRITE_SIZE;
                goto exit_label;
            }
            break;
        case DAT_COMPLEX:
            if(fwrite((complex_t*)x, sizeof(complex_t), n, pFile) != n)
            {   
                res = ERROR_FWRITE_SIZE;
                goto exit_label;
            }
            break; 
        default:
            res = ERROR_DAT_TYPE;
            goto exit_label;
    }
    res = RES_OK;
exit_label:
    if(pFile)
	    fclose(pFile);
	return res;	
}






/**************************************************************************************************
Write a real arrays to the text file "fn" 
***************************************************************************************************/
int DSPL_API writetxt(double* x, double *y, int n, char* fn)
{
	int k;
	FILE* pFile = NULL;
	
	if(!x)
		return ERROR_PTR;
	if(n < 1)
		return ERROR_SIZE;
	if(!fn)
		return ERROR_FNAME;
	
	pFile = fopen(fn, "w+");
	if(pFile == NULL)
		return ERROR_FOPEN;

	if(y)
		for(k = 0; k < n; k++)
			fprintf(pFile, "%+.12E\t%+.12E\n", x[k], y[k]);
	else
		for(k = 0; k < n; k++)
			fprintf(pFile, "%+.12E\n", x[k]);
	
	fclose(pFile);
	return RES_OK;	
}