vector_loadsave.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2019, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */

#include "system-precomp.h"  // Precompiled headers

#include <mrpt/system/os.h>
#include <mrpt/system/vector_loadsave.h>

using namespace mrpt;
using namespace mrpt::system;
using namespace std;

bool mrpt::system::vectorToTextFile(
    const vector<float>& vec, const string& fileName, bool append, bool byRows)
{
    FILE* f = os::fopen(fileName.c_str(), append ? "at" : "wt");
    if (!f) return false;

    for (float it : vec) os::fprintf(f, byRows ? "%e " : "%e\n", it);

    if (byRows) os::fprintf(f, "\n");

    os::fclose(f);
    return true;  // All ok.
}

bool mrpt::system::vectorToTextFile(
    const vector<double>& vec, const string& fileName, bool append, bool byRows)
{
    FILE* f = os::fopen(fileName.c_str(), append ? "at" : "wt");
    if (!f) return false;

    for (double it : vec) os::fprintf(f, byRows ? "%e " : "%e\n", it);

    if (byRows) os::fprintf(f, "\n");

    os::fclose(f);
    return true;  // All ok.
}

bool mrpt::system::vectorToTextFile(
    const vector<int>& vec, const string& fileName, bool append, bool byRows)
{
    FILE* f = os::fopen(fileName.c_str(), append ? "at" : "wt");
    if (!f) return false;

    for (int it : vec) os::fprintf(f, byRows ? "%i " : "%i\n", it);

    if (byRows) os::fprintf(f, "\n");

    os::fclose(f);
    return true;  // All ok.
}

bool mrpt::system::vectorToTextFile(
    const vector<size_t>& vec, const string& fileName, bool append, bool byRows)
{
    FILE* f = os::fopen(fileName.c_str(), append ? "at" : "wt");
    if (!f) return false;

    for (unsigned long it : vec)
        os::fprintf(f, byRows ? "%u " : "%u\n", static_cast<unsigned int>(it));

    if (byRows) os::fprintf(f, "\n");

    os::fclose(f);
    return true;  // All ok.
}

bool mrpt::system::vectorFromTextFile(
    std::vector<double>& vec, const std::string& fileName, bool byRows)
{
    FILE* f = os::fopen(fileName.c_str(), "r");
    if (!f) return false;

    double number = 0;

    while (!feof(f))
    {
        size_t readed = fscanf(f, byRows ? "%lf" : "%lf\n", &number);
        if ((!byRows) || (readed == 1)) vec.push_back(number);
    }

    return true;
}