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/*
Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ef.hpp"
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <cstdint>
#include <string>
#define KB (1024ULL)
#define MB (KB * 1024ULL)
#define GB (MB * 1024ULL)
#define TB (GB * 1024ULL)
namespace num
{
int
to_uint64_t(const std::string &str,
uint64_t &value)
{
char *endptr;
uint64_t tmp;
tmp = strtoll(str.c_str(),&endptr,10);
switch(*endptr)
{
case 'k':
case 'K':
tmp *= 1024;
break;
case 'm':
case 'M':
tmp *= (1024 * 1024);
break;
case 'g':
case 'G':
tmp *= (1024 * 1024 * 1024);
break;
case 't':
case 'T':
tmp *= (1024ULL * 1024 * 1024 * 1024);
break;
case '\0':
break;
default:
return -1;
}
value = tmp;
return 0;
}
int
to_double(const std::string &str_,
double *d_)
{
double tmp;
char *endptr;
tmp = strtod(str_.c_str(),&endptr);
if(*endptr != '\0')
return -1;
*d_ = tmp;
return 0;
}
int
to_time_t(const std::string &str,
time_t &value)
{
time_t tmp;
char *endptr;
tmp = strtoll(str.c_str(),&endptr,10);
if(*endptr != '\0')
return -1;
if(tmp < 0)
return -1;
value = tmp;
return 0;
}
}
namespace num
{
std::string
humanize(const uint64_t bytes_)
{
char buf[64];
if(bytes_ < KB)
sprintf(buf,"%" PRIu64 "",bytes_);
ef(((bytes_ / TB) * TB) == bytes_)
sprintf(buf,"%" PRIu64 "T",bytes_ / TB);
ef(((bytes_ / GB) * GB) == bytes_)
sprintf(buf,"%" PRIu64 "G",bytes_ / GB);
ef(((bytes_ / MB) * MB) == bytes_)
sprintf(buf,"%" PRIu64 "M",bytes_ / MB);
ef(((bytes_ / KB) * KB) == bytes_)
sprintf(buf,"%" PRIu64 "K",bytes_ / KB);
else
sprintf(buf,"%" PRIu64 "",bytes_);
return std::string(buf);
}
}