forked from AbleOS/ableos
38 lines
601 B
Plaintext
38 lines
601 B
Plaintext
length := fn(ptr: ^u8): int {
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len := 0
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loop if *(ptr + len) == 0 break else len += 1
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return len
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}
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display_int := fn(num: int, p: ^u8): ^u8 {
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i := 0
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if num == 0 {
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*p = 48
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return p
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}
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loop if num == 0 break else {
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*(p + i) = num % 10 + 48
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num /= 10
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i += 1
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}
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@inline(reverse, p);
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*(p + i) = 0
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return p
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}
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reverse := fn(s: ^u8): void {
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//reverse a string, don't remove digits
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len := 0
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loop if *(s + len) == 0 break else len += 1
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i := 0
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j := len - 1
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temp := 0
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loop if i >= j break else {
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temp = *(s + i);
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*(s + i) = *(s + j);
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*(s + j) = temp
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i += 1
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j -= 1
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}
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return
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} |