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Fix flt2dec build on 16-bit targets #163197

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Merged
rust-bors merged 1 commit into from
Sep 23, 2026
+8 −8
Merged

Fix flt2dec build on 16-bit targets #163197

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6 changes: 3 additions & 3 deletions library/core/src/num/imp/bignum.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -386,7 +386,7 @@ macro_rules! define_bignum {
/// the digit type for `Big32x40`
pub type Digit32 = u32;

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
define_bignum!(Big32x40: type=Digit32, n=40);

/// The digit type for `Big64x20`.
Expand All @@ -395,12 +395,12 @@ pub type Digit64 = u64;
#[cfg(target_pointer_width = "64")]
define_bignum!(Big64x20: type=Digit64, n=20);

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
pub type Big = Big32x40;
#[cfg(target_pointer_width = "64")]
pub type Big = Big64x20;

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
pub type Digit = Digit32;
#[cfg(target_pointer_width = "64")]
pub type Digit = Digit64;
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10 changes: 5 additions & 5 deletions library/core/src/num/imp/flt2dec/strategy/dragon.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,22 +16,22 @@ static POW10: [Digit; 10] =
[1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000];
// precalculated arrays of `Digit`s for 5^(2^n).
// FIXME(#162879): these tables have u64 and u32 versions, future versions may be generated by macro.
#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
static POW5TO16: [Digit; 2] = [0x86f26fc1, 0x23];
#[cfg(target_pointer_width = "64")]
static POW5TO16: [Digit; 1] = [0x2386f26fc1];

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
static POW5TO32: [Digit; 3] = [0x85acef81, 0x2d6d415b, 0x4ee];
#[cfg(target_pointer_width = "64")]
static POW5TO32: [Digit; 2] = [0x2d6d415b85acef81, 0x4ee];

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
static POW5TO64: [Digit; 5] = [0xbf6a1f01, 0x6e38ed64, 0xdaa797ed, 0xe93ff9f4, 0x184f03];
#[cfg(target_pointer_width = "64")]
static POW5TO64: [Digit; 3] = [0x6e38ed64bf6a1f01, 0xe93ff9f4daa797ed, 0x184f03];

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
static POW5TO128: [Digit; 10] = [
0x2e953e01, 0x3df9909, 0xf1538fd, 0x2374e42f, 0xd3cff5ec, 0xc404dc08, 0xbccdb0da, 0xa6337f19,
0xe91f2603, 0x24e,
Expand All @@ -40,7 +40,7 @@ static POW5TO128: [Digit; 10] = [
static POW5TO128: [Digit; 5] =
[0x3df99092e953e01, 0x2374e42f0f1538fd, 0xc404dc08d3cff5ec, 0xa6337f19bccdb0da, 0x24ee91f2603];

#[cfg(target_pointer_width = "32")]
#[cfg(any(target_pointer_width = "16", target_pointer_width = "32"))]
static POW5TO256: [Digit; 19] = [
0x982e7c01, 0xbed3875b, 0xd8d99f72, 0x12152f87, 0x6bde50c6, 0xcf4a6e70, 0xd595d80f, 0x26b2716e,
0xadc666b0, 0x1d153624, 0x3c42d35a, 0x63ff540e, 0xcc5573c0, 0x65f9ef17, 0x55bc28f2, 0x80dcc7f7,
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