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test: don't assume anything about the sign of NAN.

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This commit is contained in:
Eduard Burtescu 2016-06-01 09:00:46 +03:00
parent 8cbffc5bcf
commit 27673610a6
2 changed files with 10 additions and 4 deletions
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7
src/libstd/num/f32.rs
View File

@ -1382,7 +1382,6 @@ mod tests {
}
#[test]
#[rustc_no_mir] // FIXME #27840 MIR NAN ends up negative.
fn test_integer_decode() {
assert_eq!(3.14159265359f32.integer_decode(), (13176795, -22, 1));
assert_eq!((-8573.5918555f32).integer_decode(), (8779358, -10, -1));
@ -1391,7 +1390,11 @@ mod tests {
assert_eq!((-0f32).integer_decode(), (0, -150, -1));
assert_eq!(INFINITY.integer_decode(), (8388608, 105, 1));
assert_eq!(NEG_INFINITY.integer_decode(), (8388608, 105, -1));
assert_eq!(NAN.integer_decode(), (12582912, 105, 1));
// Ignore the "sign" (quiet / signalling flag) of NAN.
// It can vary between runtime operations and LLVM folding.
let (nan_m, nan_e, _nan_s) = NAN.integer_decode();
assert_eq!((nan_m, nan_e), (12582912, 105));
}
#[test]

7
src/libstd/num/f64.rs
View File

@ -1277,7 +1277,6 @@ mod tests {
}
#[test]
#[rustc_no_mir] // FIXME #27840 MIR NAN ends up negative.
fn test_integer_decode() {
assert_eq!(3.14159265359f64.integer_decode(), (7074237752028906, -51, 1));
assert_eq!((-8573.5918555f64).integer_decode(), (4713381968463931, -39, -1));
@ -1286,7 +1285,11 @@ mod tests {
assert_eq!((-0f64).integer_decode(), (0, -1075, -1));
assert_eq!(INFINITY.integer_decode(), (4503599627370496, 972, 1));
assert_eq!(NEG_INFINITY.integer_decode(), (4503599627370496, 972, -1));
assert_eq!(NAN.integer_decode(), (6755399441055744, 972, 1));
// Ignore the "sign" (quiet / signalling flag) of NAN.
// It can vary between runtime operations and LLVM folding.
let (nan_m, nan_e, _nan_s) = NAN.integer_decode();
assert_eq!((nan_m, nan_e), (6755399441055744, 972));
}
#[test]