str.cpp

包括ARM开发环境的使用和一些调试用的源程序

#include <cctype>
#include <iostream>
#include <iterator>

#ifndef _MSC_VER
using std::isspace;
#endif


#include "Str.h"

using std::istream;
using std::istream_iterator;
using std::ostream;

ostream& operator<<(ostream& os, const Str& s)
{
	for (Str::size_type i = 0; i != s.size(); ++i)
		os << s[i];
	return os;
}

// this code won't compile quite yet
istream& operator>>(istream& is, Str& s)
{
	// obliterate existing value(s)
	s.data->clear();

	// read and discard leading whitespace
	char c;
	while (is.get(c) && isspace(c))
		;	// nothing to do, except testing the condition

	// if still something to read, do so until next whitespace character
	if (is) {
		do	s.data->push_back(c);      // `\f(BIcompile error!, data' is `private'
		while (is.get(c) && !isspace(c));

		// if we read whitespace, then put it back on the stream
		if (is)
			is.unget();
	}

	return is;
}

Str operator+(const Str& s, const Str& t)
{
	Str r = s;
	r += t;
	return r;
}

istream& getline(istream&is, Str& s)
{
	s.data->clear();

	char c;
        while (is.get(c) && isspace(c))
                ;       // \f2nothing to do, except testing the condition\fP

        // \f2if still something to read, do so until next whitespace character\fP
        if (is) {
                do      s.data->push_back(c);
                while (is.get(c) && c != '\n');

                // \f2if we read whitespace, then put it back on the stream\fP
                if (is)
                        is.unget();
        }

        return is;
}