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stdlib: Real fix for _uint.parse_buf().

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This commit is contained in:
Patrick Walton 2011-04-27 11:59:22 -07:00
parent 73044b3455
commit fef8314c2e
1 changed files with 8 additions and 0 deletions
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8
src/lib/_uint.rs
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@ -34,6 +34,11 @@ fn next_power_of_two(uint n) -> uint {
} }
fn parse_buf(vec[u8] buf, uint radix) -> uint { fn parse_buf(vec[u8] buf, uint radix) -> uint {
if (_vec.len[u8](buf) == 0u) {
log_err "parse_buf(): buf is empty";
fail;
}
auto i = _vec.len[u8](buf) - 1u; auto i = _vec.len[u8](buf) - 1u;
auto power = 1u; auto power = 1u;
auto n = 0u; auto n = 0u;
@ -41,7 +46,10 @@ fn parse_buf(vec[u8] buf, uint radix) -> uint {
n += (((buf.(i)) - ('0' as u8)) as uint) * power; n += (((buf.(i)) - ('0' as u8)) as uint) * power;
power *= radix; power *= radix;
if (i == 0u) { ret n; } if (i == 0u) { ret n; }
i -= 1u;
} }
fail;
} }
fn to_str(uint num, uint radix) -> str fn to_str(uint num, uint radix) -> str