72 lines
1.8 KiB
Rust
72 lines
1.8 KiB
Rust
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pure fn add(x: int, y: int) -> int { ret x + y; }
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pure fn sub(x: int, y: int) -> int { ret x - y; }
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pure fn mul(x: int, y: int) -> int { ret x * y; }
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pure fn div(x: int, y: int) -> int { ret x / y; }
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pure fn rem(x: int, y: int) -> int { ret x % y; }
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pure fn lt(x: int, y: int) -> bool { ret x < y; }
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pure fn le(x: int, y: int) -> bool { ret x <= y; }
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pure fn eq(x: int, y: int) -> bool { ret x == y; }
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pure fn ne(x: int, y: int) -> bool { ret x != y; }
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pure fn ge(x: int, y: int) -> bool { ret x >= y; }
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pure fn gt(x: int, y: int) -> bool { ret x > y; }
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pure fn positive(x: int) -> bool { ret x > 0; }
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pure fn negative(x: int) -> bool { ret x < 0; }
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pure fn nonpositive(x: int) -> bool { ret x <= 0; }
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pure fn nonnegative(x: int) -> bool { ret x >= 0; }
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// FIXME: Make sure this works with negative integers.
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fn hash(x: int) -> uint { ret x as uint; }
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fn eq_alias(x: int, y: int) -> bool { ret x == y; }
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iter range(lo: int, hi: int) -> int {
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let lo_: int = lo;
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while lo_ < hi { put lo_; lo_ += 1; }
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}
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fn to_str(n: int, radix: uint) -> str {
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assert (0u < radix && radix <= 16u);
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ret if n < 0 {
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"-" + uint::to_str(-n as uint, radix)
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} else { uint::to_str(n as uint, radix) };
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}
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fn str(i: int) -> str { ret to_str(i, 10u); }
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fn pow(base: int, exponent: uint) -> int {
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ret if exponent == 0u {
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1
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} else if base == 0 {
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0
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} else {
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let accum = base;
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let count = exponent;
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while count > 1u { accum *= base; count -= 1u; }
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accum
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};
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}
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// Local Variables:
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// mode: rust;
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// compile-command: "make -k -C $RBUILD 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
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// End:
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