错误: ‘EOF’在此做用域中还没有声明

应该是要加上: ios

#include <cstdio>

--------------------------------------------------- shell

C++ Primer Plus 中的 Listing 5.19 函数

// textin4.cpp -- reading chars with cin.get()
#include <iostream>  // 加上:#include <cstdio>
int main(void)
{
    using namespace std;
    int ch;                         // should be int, not char
    int count = 0;

    while ((ch = cin.get()) != EOF) // test for end-of-file
    {
        cout.put(char(ch));
        ++count;
    }
    cout << endl << count << " characters read\n";
    return 0; 
}
编译报错,不懂:
textin4.cpp: 在函数‘int main()’中:
textin4.cpp:10:29: 错误: ‘EOF’在此做用域中还没有声明
只好瞎改:
/* Listing 5.19
 * textin4.cpp -- reading chars with cin.get() */
#include <iostream>
#ifndef EOF
#define EOF -1
#endif
int main (void)
{
	using namespace std;
	int ch; // should be int, not char
	int count = 0;
	
	while ((ch = cin.get()) != EOF) // test for end-of-file
	{
		cout.put(char(ch));
		++count;
	}
	cout << endl << count << " characters read\n";
	return 0;
}
这样固然能够了。
相关文章
相关标签/搜索