trim.h

来自「Thingking in c++第二版」· C头文件 代码 · 共 20 行

//: C01:trim.h
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
#ifndef TRIM_H
#define TRIM_H
#include <string>
// General tool to strip spaces from both ends:
inline std::string trim(const std::string& s) {
  if(s.length() == 0)
    return s;
  int b = s.find_first_not_of(" \t");
  int e = s.find_last_not_of(" \t");
  if(b == -1) // No non-spaces
    return "";
  return std::string(s, b, e - b + 1);
}
#endif // TRIM_H ///:~