blob: 192cbb6785fff1d40bef0c0d36591b826d49995a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
#include <iostream>
#include <fstream>
#define MAXLEN 100
using namespace std;
typedef struct {int i;} custom1_t;
typedef struct {int i;} custom2_t;
/* Usando ostream (stream) (good) */
ostream& operator<<(ostream& os, custom1_t rhs) {
return os << "stream";
}
/* Usando oftream (file) (bad) */
ofstream& operator<<(ofstream& os, custom2_t rhs) {
//return os << "file"; /* compiler complains */
os << "file";
return os;
}
int main() {
ofstream out("report.txt");
if (!out) {
cerr << "Error: no se pudo abrir el archivo\n";
return 1;
}
custom1_t t1 = {0}; // use stream
custom2_t t2 = {0}; // use fstream
out << t1 << "PUCP" << '\n';
out << "PUCP" << t1 << '\n';
out << t2 << "PUCP" << '\n';
// out << "PUCP" << t2 << '\n'; // breaks
return 0;
}
|
