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| author | Graydon Hoare <[email protected]> | 2010-08-20 11:40:59 -0700 |
|---|---|---|
| committer | Graydon Hoare <[email protected]> | 2010-08-20 11:42:44 -0700 |
| commit | 9fc4fc6692c6684487eb57c6608ee34ab94dd9f5 (patch) | |
| tree | cddbecd3d439f36d27c4549700d25ab3c23f1f52 /src/lib/_int.rs | |
| parent | Modify session to report errors in an emacs-parser-friendlier way. (diff) | |
| download | rust-9fc4fc6692c6684487eb57c6608ee34ab94dd9f5.tar.xz rust-9fc4fc6692c6684487eb57c6608ee34ab94dd9f5.zip | |
Add _uint module to std, move some code around.
Diffstat (limited to 'src/lib/_int.rs')
| -rw-r--r-- | src/lib/_int.rs | 58 |
1 files changed, 2 insertions, 56 deletions
diff --git a/src/lib/_int.rs b/src/lib/_int.rs index e76c2bf5..396dd331 100644 --- a/src/lib/_int.rs +++ b/src/lib/_int.rs @@ -25,66 +25,12 @@ iter range(mutable int lo, int hi) -> int { } } -iter urange(mutable uint lo, uint hi) -> uint { - while (lo < hi) { - put lo; - lo += 1u; - } -} - -fn next_power_of_two(uint n) -> uint { - // FIXME change |* uint(4)| below to |* uint(8) / uint(2)| and watch the - // world explode. - let uint halfbits = sys.rustrt.size_of[uint]() * 4u; - let uint tmp = n - 1u; - let uint shift = 1u; - while (shift <= halfbits) { - tmp |= tmp >> shift; - shift <<= 1u; - } - ret tmp + 1u; -} - -fn uto_str(mutable uint n, uint radix) -> str -{ - check (0u < radix && radix <= 16u); - fn digit(uint n) -> str { - alt (n) { - case (0u) { ret "0"; } - case (1u) { ret "1"; } - case (2u) { ret "2"; } - case (3u) { ret "3"; } - case (4u) { ret "4"; } - case (5u) { ret "5"; } - case (6u) { ret "6"; } - case (7u) { ret "7"; } - case (8u) { ret "8"; } - case (9u) { ret "9"; } - case (10u) { ret "a"; } - case (11u) { ret "b"; } - case (12u) { ret "c"; } - case (13u) { ret "d"; } - case (14u) { ret "e"; } - case (15u) { ret "f"; } - } - } - - if (n == 0u) { ret "0"; } - - let str s = ""; - while (n > 0u) { - s = digit(n % radix) + s; - n /= radix; - } - ret s; -} - fn to_str(mutable int n, uint radix) -> str { check (0u < radix && radix <= 16u); if (n < 0) { - ret "-" + uto_str((-n) as uint, radix); + ret "-" + _uint.to_str((-n) as uint, radix); } else { - ret uto_str(n as uint, radix); + ret _uint.to_str(n as uint, radix); } } |