FileUtil.h

Go to the documentation of this file.

#ifndef _FILEUTIL_H__
#define _FILEUTIL_H__

#include <fstream>
#include <iostream>
#include <string.h>
#include <unistd.h>
#include <string>

class FileUtil
{
public:

    static std::string createTempFilename(const std::string& prefix, const std::string& suffix = "") {
        char fname[1000];
        strcat(strcpy(fname, prefix.c_str()), ".XXXXXX");
        if (not suffix.empty()) strcat(fname, suffix.c_str());
        int file = mkstemps(fname, suffix.size());
        if (file == -1) return "";
        return fname;
    }

    static void deleteTempFilename(const std::string& filename) {
        unlink(filename.c_str());
    }

    static bool write(const std::string& s, const std::string& filename, std::string& error) {
        if (filename.empty()) {
            std::cout << s;
            return true;
        }

        std::ofstream f(filename);
        if (not f.good()) {
            error = "Error when opening the output file " + filename + ".";
            return false;
        }

        f << s;
        f.close();
        return true;
    }
};

#endif // _FILEUTIL_H__