StaticVector.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include "StaticVector.h"
 
#include <cstdio>
 
namespace cloudViewer {
 
int getArrayLengthFromFile(std::string fileName) {
    FILE* f = fopen(fileName.c_str(), "rb");
    if (f == nullptr) {
        // printf("WARNING: file %s does not exists!\n", fileName.c_str());
        return 0;
    }
 
    int n = 0;
    size_t retval = fread(&n, sizeof(int), 1, f);
    if (retval != sizeof(int)) {
        CVLog::Warning(
                "[IO] getArrayLengthFromFile: can't read array length (1)");
    }
    if (n == -1) {
        retval = fread(&n, sizeof(int), 1, f);
        if (retval != sizeof(int)) {
            CVLog::Warning(
                    "[IO] getArrayLengthFromFile: can't read array length (2)");
        }
    }
    fclose(f);
    return n;
}
 
}  // namespace cloudViewer