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