diff options
| -rw-r--r-- | src/etc/test-float-parse/runtests.py | 11 | ||||
| -rw-r--r-- | src/libcore/num/dec2flt/algorithm.rs | 2 |
2 files changed, 7 insertions, 6 deletions
diff --git a/src/etc/test-float-parse/runtests.py b/src/etc/test-float-parse/runtests.py index 27af63a5876..896d63b9f0a 100644 --- a/src/etc/test-float-parse/runtests.py +++ b/src/etc/test-float-parse/runtests.py @@ -21,8 +21,9 @@ random non-exhaustive tests for covering everything else. The actual tests (generating decimal strings and feeding them to dec2flt) is performed by a set of stand-along rust programs. This script compiles, runs, -and supervises them. In particular, the programs report the strings they -generate and the floating point numbers they converted those strings to. +and supervises them. The programs report the strings they generate and the +floating point numbers they converted those strings to, and this script +checks that the results are correct. You can run specific tests rather than all of them by giving their names (without .rs extension) as command line parameters. @@ -64,9 +65,9 @@ If a test binary writes *anything at all* to stderr or exits with an exit code that's not 0, the test fails. The output on stdout is treated as (f64, f32, decimal) record, encoded thusly: -- The first eight bytes are a binary64 (native endianness). -- The following four bytes are a binary32 (native endianness). -- Then the corresponding string input follows, in ASCII (no newline). +- First, the bits of the f64 encoded as an ASCII hex string. +- Second, the bits of the f32 encoded as an ASCII hex string. +- Then the corresponding string input, in ASCII - The record is terminated with a newline. Incomplete records are an error. Not-a-Number bit patterns are invalid too. diff --git a/src/libcore/num/dec2flt/algorithm.rs b/src/libcore/num/dec2flt/algorithm.rs index 245f415de00..e33c2814bf2 100644 --- a/src/libcore/num/dec2flt/algorithm.rs +++ b/src/libcore/num/dec2flt/algorithm.rs @@ -127,7 +127,7 @@ fn algorithm_r<T: RawFloat>(f: &Big, e: i16, z0: T) -> T { // This is written a bit awkwardly because our bignums don't support // negative numbers, so we use the absolute value + sign information. // The multiplication with m_digits can't overflow. If `x` or `y` are large enough that - // we need to worry about overflow, then they are also large enough that`make_ratio` has + // we need to worry about overflow, then they are also large enough that `make_ratio` has // reduced the fraction by a factor of 2^64 or more. let (d2, d_negative) = if x >= y { // Don't need x any more, save a clone(). |