Create Beginners_-_String_functions.c

Beginners_-_String_functions.c

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+
+
+#include "raylib.h"
+// string.h
+// for strlen()=length of string, strcmp()=compare two strings, 
+// strlwr()=convert string to lower case, strupr()=convert string to upper case.
+#include "string.h" 
+
+
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib example.");
+ 
+    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        
+        char lenny[10] = "hello"; 
+        char com1[] = "abc";
+        char com2[] = "abc";
+        char com3[] = "abcd";
+        char lower[] = "IsThisLow?";
+        char higher[] = "IsThisHigh?";
+        //----------------------------------------------------------------------------------
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+                
+            DrawText(FormatText("Length of lenny is : %i",strlen(lenny)),100,200,20,DARKGRAY);
+            // strlen returns the amount of characters in the char.
+            if(strcmp(com1,com2)==0){
+                DrawText("chars com1 and com2 have same contents.",100,220,20,DARKGRAY);
+            }else{
+                DrawText("chars com1 and com2 do not have same contents.",100,220,20,DARKGRAY);
+            }
+            if(strcmp(com1,com3)==0){
+                DrawText("chars com1 and com2 have same contents.",100,240,20,DARKGRAY);
+            }else{
+                DrawText("chars com1 and com2 do not have same contents.",100,240,20,DARKGRAY);
+            }
+            // with strcmp it returns <0 or >0 if the char is different. ==0 if the same.
+            DrawText(FormatText("char lower in lower case is : %s",strlwr(lower)),100,260,20,DARKGRAY);
+            DrawText(FormatText("char higher in higher case is : %s",strupr(higher)),100,280,20,DARKGRAY);
+            
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+
+
+}