这段代码应该生成一个名为data.in
的文件,其中包含我应该读取的随机二进制值并生成标志。但是,使用多个IDE,不会产生任何结果。我做错了什么?
#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstdlib>
#include <stdlib.h>
#include <time.h>
using namespace std;
int createTestData(int flags[], int dataSize) {
ofstream binary_file("data.in", ios::out | ios::binary);
if (!binary_file) {
cout << "The file data.in could not open for a binary write.\n" << endl;
return (1);
} else if (!binary_file.write(reinterpret_cast<char*>(flags),
sizeof(int) * 3)) {
cout << "Write failure 1 in createTestData().\n" << endl;
return (1);
} else if (!binary_file.write(reinterpret_cast<char*>(&dataSize),
sizeof(int))) {
cout << "Write failure 2 in createTestData().\n" << endl;
return (1);
}
int val;
for (int i = 0; i < 3; i++) {
if (flags[i] == 1) {
for (int j = 0; j < dataSize; j++) {
val = rand();
if (!binary_file.write(reinterpret_cast<char*>(&val),
sizeof(int))) {
cout << "Write failure 3 in createTestData().\n" << endl;
return (1);
}
}
}
}
binary_file.close();
return (0);
}
//-----------------------------------------------------------------------------
int main(int argc, char* argv[]) {
int dataFlags[3];
int dataSize = 0;
if (argc != 5) {
cout << "\nUsage: " << argv[0]
<< " sstFlag sFlag sshFlag dataArraySize\n" << endl;
return (1);
} else {
dataFlags[0] = atoi(argv[1]);
dataFlags[1] = atoi(argv[2]);
dataFlags[2] = atoi(argv[3]);
dataSize = atoi(argv[4]);
createTestData(dataFlags, dataSize);
}
return (0);
}
答案 0 :(得分:0)
在Visual Studio 2013中,data.in是在
中生成的 C:\Users\<user>\Documents\visual studio 2013\Projects\<project-name>\<project-name>
这是您的主.cpp文件所在的文件夹。