jens
1625aa7391
git-svn-id: http://moon:8086/svn/software/trunk/libsrc/mlio@1 b431acfa-c32f-4a4a-93f1-934dc6c82436
83 lines
2.1 KiB
C
Executable File
83 lines
2.1 KiB
C
Executable File
// -----------------------------------------------------------------------------------------
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// mlio.c
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// Input/output for Matlab matrices
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// -----------------------------------------------------------------------------------------
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mlio.h"
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// -----------------------------------------------------------------------------------------
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int mlio_open(mlio_t *pObj, char *pName, unsigned mode)
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{
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pObj->io_mode = mode;
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if (mode == MLIO_READ)
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{
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pObj->pFile = fopen(pName, "rb");
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// Read input file
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if (!pObj->pFile)
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{
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fprintf(stderr,"Unable to open input file %s\n", pName);
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return -1;
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}
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// Header
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fread(&pObj->hdr_file.version, 1, sizeof(unsigned), pObj->pFile);
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fscanf(pObj->pFile, "%s", pObj->hdr_file.prec_typename);
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fseek(pObj->pFile, 1, SEEK_CUR);
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fread(&pObj->hdr_data, 1, sizeof(data_hdr_t), pObj->pFile);
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printf("Rows=%d, Columns=%d, File size=%d bytes\n", pObj->hdr_data.num_row, pObj->hdr_data.num_col, pObj->hdr_data.size);
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}
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else
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{
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pObj->pFile = fopen(pName, "wb");
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// Write output file
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if (!pObj->pFile)
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{
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fprintf(stderr,"Unable to open output file %s\n", pName);
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return -1;
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}
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}
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return 0;
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}
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int mlio_close(mlio_t *pObj)
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{
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return fclose(pObj->pFile);
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}
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int mlio_read(mlio_t *pObj, double *pData)
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{
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// Read data
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fread(pData, pObj->hdr_data.num_row*pObj->hdr_data.num_col, sizeof(double), pObj->pFile);
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return 0;
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}
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int mlio_write(mlio_t *pObj, double *pData, unsigned num_rows, unsigned num_cols)
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{
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pObj->hdr_data.num_row = num_rows;
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pObj->hdr_data.num_col = num_cols;
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// Header
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fwrite(&pObj->hdr_file.version, 1, sizeof(unsigned), pObj->pFile);
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fprintf(pObj->pFile, "%s\r", pObj->hdr_file.prec_typename);
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fwrite(&pObj->hdr_data, 1, sizeof(data_hdr_t), pObj->pFile);
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// Write data
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fwrite(pData, pObj->hdr_data.num_row*pObj->hdr_data.num_col, sizeof(double), pObj->pFile);
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return 0;
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}
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// -----------------------------------------------------------------------------------------
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