string.h

/* Copyright (c) 2021 OceanBase and/or its affiliates. All rights reserved.
miniob is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:
         http://license.coscl.org.cn/MulanPSL2
THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details. */
 
//
// Created by Longda on 2010
//
 
#pragma once
 
// Basic includes
#include <cxxabi.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
 
#include <cstdlib>
#include <string>
#include <typeinfo>
 
#include "common/defs.h"
#include "common/lang/vector.h"
#include "common/lang/iostream.h"
#include "common/lang/sstream.h"
#include "common/lang/set.h"
 
using std::stof;
using std::stol;
using std::string;
using std::to_string;
 
namespace common {
 
void  strip(string &str);
char *strip(char *str);
 
string size_to_pad_str(int size, int pad);
 
string &str_to_upper(string &s);
 
string &str_to_lower(string &s);
 
void split_string(const string &str, string delim, set<string> &results);
void split_string(const string &str, string delim, vector<string> &results);
void split_string(char *str, char dim, vector<char *> &results, bool keep_null = false);
 
void merge_string(string &str, string delim, vector<string> &result, size_t result_len = 0);
void replace(string &str, const string &old, const string &new_str);
 
char *bin_to_hex(const char *s, const int len, char *hex_buff);
char *hex_to_bin(const char *s, char *bin_buff, int *dest_len);
 
template <class T>
bool str_to_val(const string &str, T &val, ios_base &(*radix)(ios_base &) = std::dec);
 
template <class T>
void val_to_str(const T &val, string &str, ios_base &(*radix)(ios_base &) = std::dec);
 
string double_to_str(double v);
 
bool is_blank(const char *s);
 
char *substr(const char *s, int n1, int n2);
 
template <class T>
string get_type_name(const T &val);
 
template <class T>
bool str_to_val(const string &str, T &val, ios_base &(*radix)(ios_base &)/* = std::dec */)
{
  bool          success = true;
  istringstream is(str);
  if (!(is >> radix >> val)) {
    val     = 0;
    success = false;
  }
  return success;
}
 
template <class T>
void val_to_str(const T &val, string &str, ios_base &(*radix)(ios_base &)/* = std::dec */)
{
  stringstream strm;
  strm << radix << val;
  str = strm.str();
}
 
template <class T>
string get_type_name(const T &val)
{
  int   status = 0;
  char *stmp   = abi::__cxa_demangle(typeid(val).name(), 0, 0, &status);
  if (!stmp)
    return "";
 
  string sret(stmp);
 
  ::free(stmp);
  return sret;
}
 
}  // namespace common