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examples/arrays.cm

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+// Public domain / CC0. Use freely for any purpose. RoyR 2026
+// arrays.cm - Array operations
+// Demonstrates: arrays, loops, array initialization
+
+void printf(uint8 *fmt);
+
+int32 sum_array(int32 *arr, int32 len) {
+    int32 total = 0;
+    for (int32 i = 0; i < len; i = i + 1) {
+        total = total + arr[i];
+    }
+    return total;
+}
+
+void reverse_array(int32 *arr, int32 len) {
+    int32 i = 0;
+    int32 j = len - 1;
+    while (i < j) {
+        int32 temp = arr[i];
+        arr[i] = arr[j];
+        arr[j] = temp;
+        i = i + 1;
+        j = j - 1;
+    }
+}
+
+int32 main(void) {
+    int32 numbers[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
+    
+    printf("Original array: ");
+    for (int32 i = 0; i < 10; i = i + 1) {
+        printf("%d ", numbers[i]);
+    }
+    printf("\n");
+    
+    int32 total = sum_array(numbers, 10);
+    printf("Sum: %d\n", total);
+    
+    reverse_array(numbers, 10);
+    
+    printf("Reversed array: ");
+    for (int32 i = 0; i < 10; i = i + 1) {
+        printf("%d ", numbers[i]);
+    }
+    printf("\n");
+    
+    return 0;
+}