error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f32.rs:LL:COL | = note: the evaluated program panicked at 'const-eval error: cannot use f32::to_bits on a NaN', $SRC_DIR/core/src/num/f32.rs:LL:COL | note: inside `core::f32::::to_bits::ct_f32_to_u32` --> $SRC_DIR/core/src/num/f32.rs:LL:COL note: inside `core::f32::::to_bits` --> $SRC_DIR/core/src/num/f32.rs:LL:COL note: inside `f32::MASKED_NAN1` --> $DIR/const-float-bits-reject-conv.rs:28:30 | LL | const MASKED_NAN1: u32 = f32::NAN.to_bits() ^ 0x002A_AAAA; | ^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f32.rs:LL:COL | = note: the evaluated program panicked at 'const-eval error: cannot use f32::to_bits on a NaN', $SRC_DIR/core/src/num/f32.rs:LL:COL | note: inside `core::f32::::to_bits::ct_f32_to_u32` --> $SRC_DIR/core/src/num/f32.rs:LL:COL note: inside `core::f32::::to_bits` --> $SRC_DIR/core/src/num/f32.rs:LL:COL note: inside `f32::MASKED_NAN2` --> $DIR/const-float-bits-reject-conv.rs:30:30 | LL | const MASKED_NAN2: u32 = f32::NAN.to_bits() ^ 0x0055_5555; | ^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:35:34 | LL | const_assert!(f32::from_bits(MASKED_NAN1).is_nan()); | ^^^^^^^^^^^ note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:36:34 | LL | const_assert!(f32::from_bits(MASKED_NAN1).is_nan()); | ^^^^^^^^^^^ note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:42:34 | LL | const_assert!(f32::from_bits(MASKED_NAN1).to_bits(), MASKED_NAN1); | ^^^^^^^^^^^ note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:43:34 | LL | const_assert!(f32::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); | ^^^^^^^^^^^ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f64.rs:LL:COL | = note: the evaluated program panicked at 'const-eval error: cannot use f64::to_bits on a NaN', $SRC_DIR/core/src/num/f64.rs:LL:COL | note: inside `core::f64::::to_bits::ct_f64_to_u64` --> $SRC_DIR/core/src/num/f64.rs:LL:COL note: inside `core::f64::::to_bits` --> $SRC_DIR/core/src/num/f64.rs:LL:COL note: inside `f64::MASKED_NAN1` --> $DIR/const-float-bits-reject-conv.rs:50:30 | LL | const MASKED_NAN1: u64 = f64::NAN.to_bits() ^ 0x000A_AAAA_AAAA_AAAA; | ^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f64.rs:LL:COL | = note: the evaluated program panicked at 'const-eval error: cannot use f64::to_bits on a NaN', $SRC_DIR/core/src/num/f64.rs:LL:COL | note: inside `core::f64::::to_bits::ct_f64_to_u64` --> $SRC_DIR/core/src/num/f64.rs:LL:COL note: inside `core::f64::::to_bits` --> $SRC_DIR/core/src/num/f64.rs:LL:COL note: inside `f64::MASKED_NAN2` --> $DIR/const-float-bits-reject-conv.rs:52:30 | LL | const MASKED_NAN2: u64 = f64::NAN.to_bits() ^ 0x0005_5555_5555_5555; | ^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:57:34 | LL | const_assert!(f64::from_bits(MASKED_NAN1).is_nan()); | ^^^^^^^^^^^ note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:58:34 | LL | const_assert!(f64::from_bits(MASKED_NAN1).is_nan()); | ^^^^^^^^^^^ note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:61:34 | LL | const_assert!(f64::from_bits(MASKED_NAN1).to_bits(), MASKED_NAN1); | ^^^^^^^^^^^ note: erroneous constant encountered --> $DIR/const-float-bits-reject-conv.rs:62:34 | LL | const_assert!(f64::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); | ^^^^^^^^^^^ error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0080`.