io.cpp

#include "io.h"
namespace io
{
uint64_t readline(int fd, char* buf, size_t len)
{
    return 0;
}
uint64_t writeline(int fd, const char* buf, size_t len)
{
    return 0;
}
uint64_t readn(int fd, char* buf, size_t len)
{
    return 0;
}
uint64_t writen(int fd, const char* buf, size_t len)
{
    return 0;
}
void upchar(char* buf, size_t len)
{

}
void downchar(char* buf, size_t len)
{

}
uint64_t get_file_size(const char* path)
{
    return 0;
}
}