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read / write

Abstract

Functions for reading and writing files.
ファイルの読み書きに利用する関数．

Header file

namespace sstd{
    bool read_bin(std::vector<uint8>& ret, const char*        path);
    bool read_bin(std::vector<uint8>& ret, const std::string& path);
    std::vector<uint8> read_bin(const char*        path);
    std::vector<uint8> read_bin(const std::string& path);

    bool write_bin(const char*        path, std::vector<uint8>& rhs);
    bool write_bin(const std::string& path, std::vector<uint8>& rhs);

    std::string read(const char*        path);
    std::string read(const std::string& path);
    bool read_woBOM(std::string& ret_str, const char*        path); // wo: without
    bool read_woBOM(std::string& ret_str, const std::string& path); // wo: without

    size_t write(const        char* path, const void* ptr, const size_t type_size, const size_t num); // (1)
    size_t write(const std::string& path, const void* ptr, const size_t type_size, const size_t num); // (2)
    size_t write(const        char* path, const std::string& s);                                      // (3)
    size_t write(const std::string& path, const        char* s);                                      // (4)
    size_t write(const std::string& path, const std::string& s);                                      // (5)
}

//-----------------------------------------------------------------------------------------------------------------------------------------------
// Below functions are the not recommended to use. (Below functions will be delete on sstd ver 3.x.x).

namespace sstd{
    std::string read_withoutBOM(const char*        path);
    std::string read_withoutBOM(const std::string& path);
}

//-----------------------------------------------------------------------------------------------------------------------------------------------

Description

Function name Description
read_bin()
write_bin()
read()
read_woBOM() returns string without BOM.
BOM を取り除いた文字列を std::string として返却します．
write()

Usage

  • main.cpp 
    #include <sstd/sstd.hpp>

int main(){
    sstd::mkdir("./tmp");
    std::string f_path = "./tmp/test_read_write.txt";

    std::string s = "abcdef\nGHIJK";
    size_t w_size = sstd::write(f_path, s);
    sstd::printn(w_size);

    std::string s_read = sstd::read(f_path);
    sstd::printn(s_read.size());
    sstd::printn(s_read);

    sstd::rm("./tmp");
}
  • Execution result 
    w_size = 12
s_read.size() = 12
s_read = "abcdef
GHIJK"

Implementation