Add while true loop and switch statement in main.

Change CMake generator to MinGW Makefiles.
Update gitignore.

.gitignore

@@ -1,5 +1,6 @@
 # New
 build.tar
+src/old
 
 # ---> C
 # Prerequisites

.vscode/settings.json

@@ -4,6 +4,8 @@
         "pointer_test.h": "c",
         "struct_test.h": "c",
         "stdio.h": "c",
-        "stdlib.h": "c"
-    }
+        "stdlib.h": "c",
+        "mysql.h": "c"
+    },
+    "cmake.generator": "MinGW Makefiles"
 }

src/main.c

@@ -1,4 +1,4 @@
-    #include <stdio.h>
+#include <stdio.h>
 // #include <stdint.h>
 #include <inttypes.h>
 
@@ -11,7 +11,6 @@
 
 #include "mysql_test.h"
 
-
 // Test
 // https://stackoverflow.com/questions/8666378/detect-windows-or-linux-in-c-c
 #ifdef _WIN32
@@ -20,7 +19,6 @@
 
 #include "stdbool.h"
 
-
 // To setup this project on windows
 // 1. Install CMake
 // 2. Install Ninja with winget in windows 11: "winget install --id=Ninja-build.Ninja -e"
@@ -50,14 +48,24 @@
 // TODO Look into getting current directory in Windows and Linux
 // https://stackoverflow.com/questions/27585930/get-the-current-working-directory-in-c-on-windows
 
+// This might be useful for all the preprocessors for each operating system:
+// https://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor
+
+
 // TODO Move this into a different project.
 #ifdef _WIN32
 
-void guiTest(){
-    
+void guiTest()
+{
+    // WIN32_
 }
 
-#endif
+#endif //_WIN32
+
+#ifdef __linux__
+// TODO Test this
+#include <pwd.h>
+#endif //__linux__
 
 // #define _FLIP_BOOLS
 // Hmm, very evil
@@ -69,40 +77,166 @@ void guiTest(){
 // #define false (rand() % 2)
 #endif //_FLIP_BOOLS
 
+// https://www.reddit.com/r/C_Programming/comments/jjdl7s/difference_between_char_and_char/
+// char welcomeMsg[] = "Welcome to KCNet";
+const char *kcnetMsg = "[KCNet]:";
+const char *welcomeMsg = "Welcome to KCNet";
+const char *errorMsg = "Error:";
+
+void flip_bools()
+{
+#ifdef _FLIP_BOOLS
+    bool testb = false;
+    if (testb)
+    {
+        printf("True");
+    }
+    else
+    {
+        printf("False");
+    }
+#else
+    // Print the message that this isn't enabled
+    printf("%s %s This is not enabled!\n", kcnetMsg, errorMsg);
+#endif //_FLIP_BOOLS
+}
+
 // TODO Look into making a gtk C program
 // https://www.geeksforgeeks.org/how-to-create-gui-in-c-programming-using-gtk-toolkit/
 
 // Print out the memory addresses for each item in an array.
-void array_test() {
+void array_test()
+{
     // https://www.tutorialspoint.com/cprogramming/c_memory_address.htm
     // Int array
-    int numbers[5] = {1,2,3,4,5};
+    int numbers[5] = {1, 2, 3, 4, 5};
     int i = 0;
 
     printf("numbers = %p\n", numbers);
 
-    do {
+    do
+    {
         printf("numbers[%u] = %p\n", i, (void *)&numbers[i]);
         i++;
     } while (i < 5);
 
     printf("sizeof(numbers) = %lu\n", sizeof(numbers));
-
 }
 
 // Removed from path in windows: C:\mingw64\bin
 
 // https://www.tutorialspoint.com/cprogramming/c_ternary_operator.htm
-void check_even_odd(int num) {
-    (num %2 == 0) ? printf("%d is even\n", num) : printf("%d is odd\n", num);
+void check_even_odd(int num)
+{
+    (num % 2 == 0) ? printf("%d is even\n", num) : printf("%d is odd\n", num);
+
+    // return;
 }
 
+void user_input()
+{
+    int value;           // Value for the switch loop
+    int number_to_check; // Number to check for even/odd check in the loop
 
-int main() {
-    char welcomeMsg[] = "Welcome to KCNet";
-    // printf(welcomeMsg);
+    // Pointer test
+    int i = 22222;   // Random value
+    int *i_ptr = &i; // Pointer to that random value
+    //
 
-    uint16_t test = -2;
+    while (true)
+    {
+        // for (;;){
+
+        // Oops this was outside of the loop and breaking it...
+        // Well I fixed that part of it.
+        printf("\n%s What would you like to do? "
+               "1 (Array Test), "
+               "2 (Check Even or Odd), "
+               "3 (Print welcome msg), "
+               "4 (Flip bools {if enabled}), "
+               "5 (Read file), "
+               "6 (Print struct), "
+               "7 (Math test), "
+               "8 (Pointer test), "
+               "9 (Get User Profile): ",
+               kcnetMsg);
+        scanf("%d", &value);
+
+        switch (value)
+        {
+        case 1:
+            array_test();
+            break;
+        case 2:
+            printf("Enter a number to check: ");
+            scanf("%d", &number_to_check);
+            check_even_odd(number_to_check);
+            break;
+        case 3:
+            printf("%s\n", welcomeMsg);
+            break;
+        case 4:
+            flip_bools();
+            break;
+        case 5:
+            read_file("test.txt");
+            break;
+
+        case 6:
+            print_struct();
+            break;
+        case 7:
+            // printf("Test #7");
+            mathFunctions();
+            break;
+        case 8:
+            // printf("Test #8");
+            pointer_madness(i_ptr);
+            break;
+
+        case 9:
+            // printf("Test #8");
+            #ifdef _WIN32
+            printf("%s User profile path: %s\n", kcnetMsg, getenv("USERPROFILE"));
+            #endif // _WIN32
+            #ifdef __linux__
+            // https://stackoverflow.com/questions/1451825/c-programming-printing-current-user
+            // https://stackoverflow.com/questions/41976889/c-user-name-in-linux-get-current-user-name
+            // TODO Fix this
+            struct passwd *p = getpwuid(getuid());
+            if (p != NULL) 
+            {
+                printf("%s %s\n", kcnetMsg, p->pw_name);
+            }
+            else
+            {
+                printf("%s The user seems to be invalid.", errorMsg)
+            }
+
+
+            #endif //__linux__
+            break;
+
+        default:
+            printf("Invalid option %d", &value);
+            break;
+        }
+    }
+    // printf("Enter a number: ");
+    // scanf("%d", &my_num);
+    // printf("You entered the number: \"%d\"", my_num);
+}
+
+int main()
+{
+
+    // printf("%s\n", welcomeMsg);
+
+    // uint16_t test = -2;
+
+    user_input();
+    // TODO Fix this to work.
+    // connect_mysql();
 
     // array_test();
     // for (int i=0; i<5; i++) {
@@ -113,7 +247,6 @@ int main() {
     // print_struct();
     // read_file("test.txt");
 
-
     // This doesn't work
     // uint16_test();
 
@@ -124,26 +257,6 @@ int main() {
     // https://stackoverflow.com/questions/12120426/how-do-i-print-uint32-t-and-uint16-t-variables-value
     // printf("Number: %" PRIu32, test);
 
-    // mathFunctions();
-    // print_struct();
-    int i = 22222;
-    int* i_ptr = &i;
-    // pointer_madness(i_ptr);
-
-    connect_mysql();
-
-#ifdef _FLIP_BOOLS
-    bool testb = false;
-    if (testb) {
-        printf("True");
-    } else {
-        printf("False");
-    }
-
-#endif //_FLIP_BOOLS
-
-
-    
     // printf_example();
     return 0;
 }