1  /*
 2   * FILE : f8.cpp
 3   * PROJECT : SENG1000 - FOCUSED ASSIGNMENT 8
 4   * PROGRAMMER : Tian Yang
 5   * FIRST VERSION : 2024-03-19
 6   * DESCRIPTION :
 7   * This program practice at working with C-style strings, files, command-line arguments, and structs.
 8   */
 9  
10  #pragma warning(disable: 4996)
11  
12  #include <stdio.h>
13  #include <string.h>
14  #include <stdlib.h>
15  
16  #define MAXLENGTH 41 // 20(directory) + 20(filename) + 1(terminator)
17  
18  typedef struct 
19  {
20      int howMany;
21      const char* theText;
22      const char* directoryPath;
23      const char* filename;
24  } MyDat;
25  
26  int main(int argc, char* argv[])
27  {
28      if(argc != 5)
29      {
30          printf("Error: Incorrect number of arguments.\n");
31          return 1;
32      }
33      MyDat myArgs = {
34          .howMany = strtol(argv[1], NULL, 10),
35          .theText = argv[2],
36          .directoryPath = argv[3],
37          .filename = argv[4]};
38          
39      char filename[MAXLENGTH] = "";
40      strcpy(filename, myArgs.directoryPath);
41      strcat(filename, "\\");
42      FILE* file = fopen(strcat(filename, myArgs.filename), "w");
43      if(file == NULL)
44      {
45          printf("Can't open or create %s\n", filename);
46          return 0;
47      }
48      for (int i = 0; i < myArgs.howMany; i++)
49      {
50          if(fprintf(file, "%s\n", myArgs.theText) < 0)
51          {
52              printf("Can't write to %s\n", filename);
53              break;
54          }
55      }
56      if(fclose(file))
57      {
58          printf("Can't close %s\n", filename);
59      }
60  
61      return 0;
62  }