Add mysql test, update gitignore.

.gitignore

@@ -1,3 +1,6 @@
+# New
+build.tar
+
 # ---> C
 # Prerequisites
 *.d

.vscode/settings.json

@@ -3,6 +3,7 @@
         "math_functions.h": "c",
         "pointer_test.h": "c",
         "struct_test.h": "c",
-        "stdio.h": "c"
+        "stdio.h": "c",
+        "stdlib.h": "c"
     }
 }

CMakeLists.txt

@@ -1,27 +1,55 @@
-cmake_minimum_required(VERSION 3.5.0)
+# cmake_minimum_required(VERSION 3.5.0)
+cmake_minimum_required(VERSION 3.10)
 project(Test_Project VERSION 0.1.0 LANGUAGES C)
 
+# Hmm, this format could be useful.
+# if(WIN32)
+# endif()
+
+SET(MARIADB_INCLUDE_DIR "C:/Program Files/MariaDB/MariaDB Connector C 64-bit/include")
+SET(MARIADB_LIBRARY_DIR "C:/Program Files/MariaDB/MariaDB Connector C 64-bit/lib")
+
+SET(BINARY_NAME "Test_Project")
+
+# MySql test
+# https://dev.mysql.com/blog-archive/the-client-library-part-4-how-to-write-a-simple-mysql-client-in-c-using-cmake-and-pkg-config/
+
+# https://stackoverflow.com/questions/72786137/how-to-compile-c-with-cmake-and-l-usr-include-mariadb-mysql-lmariadbclient
+
 # Add more c files in here
-# add_executable(Test_Project
+# add_executable(${BINARY_NAME}
 # main.c
 # hello.c
 # math_functions.c
 # struct_test.c
 # )
 
-add_executable(Test_Project
+add_executable(${BINARY_NAME}
 src/main.c
 src/hello.c
 src/math_functions.c
 src/struct_test.c
 src/pointer_test.c
 src/read_file.c
+src/mysql_test.c
 )
 
 # https://discourse.cmake.org/t/how-to-properly-include-header-files/4762
 
 # Add header files in here, not sure if I did this right.
-target_include_directories(Test_Project
-PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}"
+target_include_directories(${BINARY_NAME}
+        PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}"
+        "${MARIADB_INCLUDE_DIR}"
+        # "${LIBMYSQLCLIENT_INCLUDE_DIRS}"
+        )
 
-)
+# https://stackoverflow.com/questions/2601798/adding-compiled-libraries-and-include-files-to-a-cmake-project
+target_link_libraries(${BINARY_NAME}
+                "${MARIADB_LIBRARY_DIR}/libmariadb.lib"
+                "${MARIADB_LIBRARY_DIR}/mariadbclient.lib"
+                )
+
+# add_library(Test_Project
+#         PUBLIC "${MARIADB_LIBRARY_DIR}/libmariadb.lib"
+#         "${MARIADB_LIBRARY_DIR}/mariadbclient.lib"
+#         )

src/main.c

@@ -1,4 +1,4 @@
-#include <stdio.h>
+    #include <stdio.h>
 // #include <stdint.h>
 #include <inttypes.h>
 
@@ -9,6 +9,8 @@
 #include "pointer_test.h"
 #include "read_file.h"
 
+#include "mysql_test.h"
+
 
 // Test
 // https://stackoverflow.com/questions/8666378/detect-windows-or-linux-in-c-c
@@ -39,6 +41,11 @@
 // 7. Run this CMake command to generate build files: "cmake -G "MinGW Makefiles" .."
 // 8. To build Run "make"
 
+// I switched to msys2 and used this guide for the toolkit:
+// https://www.devdungeon.com/content/install-gcc-compiler-windows-msys2-cc
+
+// Installed mysql in mingw64 using msys2:
+// pacman -S mingw-w64-x86_64-libmariadbclient
 
 // TODO Look into getting current directory in Windows and Linux
 // https://stackoverflow.com/questions/27585930/get-the-current-working-directory-in-c-on-windows
@@ -83,6 +90,8 @@ void array_test() {
 
 }
 
+// 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);
@@ -102,7 +111,7 @@ int main() {
     // check_even_odd(1);
 
     // print_struct();
-    read_file("test.txt");
+    // read_file("test.txt");
 
 
     // This doesn't work
@@ -121,6 +130,8 @@ int main() {
     int* i_ptr = &i;
     // pointer_madness(i_ptr);
 
+    connect_mysql();
+
 #ifdef _FLIP_BOOLS
     bool testb = false;
     if (testb) {

src/mysql_test.c

@@ -0,0 +1,86 @@
+// I had to install MariaDB Connector from here and add the path to the CMake include
+// MariaDB Connector: https://mariadb.com/downloads/connectors/
+// Include path : C:/Program Files/MariaDB/MariaDB Connector C 64-bit/include
+
+// #include <mysql/mysql.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <mysql.h>
+
+// TODO Fix this to work.
+
+// https://stackoverflow.com/questions/44860756/how-to-connect-and-insert-record-to-mysql-using-c-language
+void connect_mysql() {
+    MYSQL *conn;
+    // MYSQL *conn;
+
+    mysql_init(conn);
+
+    // TODO Move these into a file
+    const char* mysql_host = "localhost";
+    const char* mysql_username = "";
+    
+    const char* mysql_password = "";
+    const char* mysql_database = "";
+    unsigned int mysql_port = 3306;
+
+    const char* mysql_table_insert = "INSERT INTO table_1 VALUES ('Hello World');";
+    // const char* mysql_table_select = "SELECT * FROM ";
+    const char* mysql_table_show = "SHOW TABLES";
+
+
+    if((conn = mysql_init(NULL)) == NULL) {
+        fprintf(stderr, "Could not init DB\n");
+        // return EXIT_FAILURE;
+    }
+
+    // Set mysql options
+    // mysql_options(conn, );
+
+    // Gives an error
+    // if (mysql_real_connect(conn, mysql_host, mysql_username, mysql_password, mysql_database, mysql_port, NULL, 0) == NULL) {
+    if (!mysql_real_connect(conn, 
+        mysql_host,
+        mysql_username, 
+        mysql_password, 
+        mysql_database, 
+        mysql_port, 
+        NULL, 
+        0)){
+        // 0) == NULL) {
+        // CLIENT_FOUND_ROWS) == NULL) {
+        fprintf(stderr, "DB Connection Error\n");
+        // return EXIT_FAILURE;
+    }
+
+    // Gives an error
+    // if (mysql_query(conn, mysql_table_insert) != 0) {
+    if (mysql_query(conn, mysql_table_show) != 0) {
+        fprintf(stderr, "Query failure");
+        // return EXIT_FAILURE;
+    } else {
+        // https://github.com/hholzgra/connector-c-examples/blob/master/mysql_fetch_row.c#L61
+        MYSQL_RES *result = mysql_store_result(conn);
+
+        if(!result) {
+            printf("Couldnt get results set %s\n", mysql_error(conn));
+        } else {
+            MYSQL_ROW row;
+            int i;
+            unsigned int num_field = mysql_num_fields(result);
+
+            while((row = mysql_fetch_row(result))) {
+                for (i = 0; i < num_field; i++) {
+                    printf("%s ", row[i]);
+                }
+                putchar('\n');
+            }
+
+            mysql_free_result(result);
+        }
+    }
+
+    mysql_close(conn);
+    // printf("Inserted %s into the db", mysql_table_insert);
+    // return EXIT_SUCCESS;
+}

src/mysql_test.h

@@ -0,0 +1 @@
+void connect_mysql();