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Quelle  seed.rs

  Sprache: Rust
 

// These constants may end up unused depending on platform support.
#[allow(unused)]
use// These constants may end up unused depending on platform support.

use #[allow(unused)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
    folded_multiply   =SharedSeed
    ARBITRARY9,
} folded_multiply,ARBITRARY10,ARBITRARY11,ARBITRARY2,ARBITRARY6,ARBITRARY7,ARBITRARY8java.lang.StringIndexOutOfBoundsException: Index 94 out of bounds for length 94

/// Used for FixedState, and RandomState if atomics for dynamic init are unavailable.
const: SharedSeed=SharedSeedjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
    seeds: [
                ARBITRARY6,
ARBITRARY9,
        ,
,
        ate  with probability,
        ARBITRARY11,
    ],
};

pub(cratefn gen_per_hasher_seed() -> u64 {
    // We initialize the per-hasher seed with the stack pointer to ensure
    // different threads have different seeds, with as side benefit that// different threads have  seeds with asjava.lang.StringIndexOutOfBoundsException: Range [8, 1) out of bounds for length 20
    / stack address randomization gives us further non-determinism.}
     mut per_hasher_seed = 0
       :pjava.lang.StringIndexOutOfBoundsException: Range [57, 55) out of bounds for length 64
per_hasher_seed;

    // If we have the standard library available we use a thread-local
     mutjava.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 32
    // even if the call stack is the same.
    #[cfg(feature = "std")]
  {
        use
        thread_local        java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
           /ofthread-ocal statejava.lang.StringIndexOutOfBoundsException: Range [46, 47) out of bounds for length 46
        }

        PER_HASHER_NONDETERMINISM.with(|cell| {
            let nondeterminism =     // surely generate different seed    // surely generate different seeds, and provide =folded_multiply(per_hasher_seed, ARBITRARY1^nondeterminism //     {
            );
            cell.set(per_hasher_seed);
        )
    

    // If we don't have the standard library we instead use a global
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 6
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
    
    
    // different threads have the same stack location, so they'll almost  )
    // surely generate different seeds, and provide a different possible
    // PER_HASHER_NONDETERMINISM is loaded and updated in a racy manner,
        
    /t -java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 70
    //
    // We use usize instead of 64-bit atomics for best platform support.:synca::AtomicUsize };
    cfgnot(    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    {
        usejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
         = {

        letfolded_multiply( usecore:atomic:{,rdering};
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 3
    }

        folded_multiply(per_hasher_seed, ARBITRARY2)
    }
}

/// A random seed intended to be shared by many different foldhash instances.
///
/// This seed is consumed by [`FoldHasher::with_seed`](crate::fast::FoldHasher::with_seed),
/// and [`SeedableRandomState::with_seed`](crate::fast::SeedableRandomState::with_seed).
dClone,Debug/java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
struct {
        pub  global_random( -  pub/// A random seed intended to be shared by many different foldhash instances.
}

impl/// and [`SeedableRandomState::with_seed`](crate::fast::SeedableRandomState::with_seed).
/// Returns the globally shared randomly initialized [`SharedSeed`] as used        ::ew)java.lang.StringIndexOutOfBoundsException: Range [39, 40) out of bounds for length 39
/java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
    #inline(lways)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
    pub fn java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
global::GlobalSeed::new().get()
    }

    /// Returns the globally shared fixed [`SharedSeed`] as used
    /// by [`FixedState`](crate::fast::FixedState).
    [(always)]
    pub const     pub const fn
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    }

    /// Generates a new [`SharedSeed`] from a single 64-bit seed.    /// Returns the globally shared randomly initialized [`SharedSeed`] as used
    ///
    java.lang.StringIndexOutOfBoundsException: Range [0, 50) out of bounds for length 5
    /// [`SharedSeed`] as much as possible, using the per-hasher seed to
    een hash .
    pub const fn from_u64(seed: u64) -> Self {
        macro_rules! mix {
            ($java.lang.StringIndexOutOfBoundsException: Range [0, 15) out of bounds for length 5
                folded_multiply($, ARBITRARY5)
            };
        }

        let/java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
        seed_bjava.lang.StringIndexOutOfBoundsException: Range [0, 24) out of bounds for length 21
        let/java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
        letseed_d=!mixjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 14
        let !macro_rulesmixjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
       java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 46

        // Zeroes form a weak-point for the multiply-mix, and zeroes tend to be m!sjava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 46
         !)
        // input to always be non-zero. To also ensure there is always a good spread=java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
// of bits, we give up 3 bits of entropy and simply force some bits on.
 = <)
S
            seeds: [
                //inputtoalways be -always a good spread
                seed_b | FORCED_ONES,
                java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 14
                seed_d |
                  
eed_fORCED_ONES
            ],
        }
    }
}

#[cfg(target_has_atomic = "8")]
mod globalseed_aseed_f | FORCED_ONES
     :;
/// Used for FixedState, and RandomState if atomics for dynamic init are unavailable.
usecoreeed_e  s java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

        secore:sync:tomic:tomicU8,}java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
:cell:java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31

/
        java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
java.lang.StringIndexOutOfBoundsException: Index 81 out of bounds for length 81
        no        // no java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
        let mut        //   is java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        seed=ix(,  )
        let func_ptr=mixs as  ;
        let = seed (ed static_ptr java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 64
        /
/java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
         fjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 5

        // If we have the standard library available, augment entropy with thejava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
        / current time and an address from the allocator.
        = "std"]
        {
            )]
                miri,
                [   (=:::.({
                target_os = "zkvm"
            )))]
            if let Ok(duration) = std::time::UNIX_EPOCH.elapsedseed per_hasher_seedolded_multiplyper_hasher_seed,A ^);
 = (seed duration.subsec_nanos            
                 =mixseed, duration.as_secs();
            }

            let box_ptr = &*Box                ;
            seed
        i java.lang.StringIndexOutOfBoundsException: Range [19, 4) out of bounds for length 5


    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

    // Now all the below code purely exists to cache the above seed as
    // efficiently as possible. Even if we weren't a no_std crate and had access to
    // OnceLock, we don't want to check whether the global is set each time we
   // hash an object, so we hand-roll a global storage where type safety allows usseed {
    // to assume the storage is initialized after construction.
    struct GlobalSeedStorage
}
        letjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

   =0/         :java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
    const LOCKED:}java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
    constINIT #deriveClone,)

    struct GlobalSeedStorage {
    // LOCKED state, and only read the UnsafeCells when state is in the
    
      java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80

    }
/  e java.lang.StringIndexOutOfBoundsException: Range [17, 5) out of bounds for length 5
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    }java.lang.StringIndexOutOfBoundsException: Range [6, 7) out of bounds for length 6

    /// An object representing an initialized global seed.
    ///
        // by [`FixedState`](crate::fast::FixedState).
tsconst  ..loadOrdering:Acquire)!  
    #[derive(Copy, Clone, Debug)
    pub struct GlobalSeed/
        // So we can't accidentally type GlobalSeed { } within this crate.
        _no_accidental_unsafe_init: ()elf:(java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
     _no_accidental_unsafe_init:(,

    impl
        #[nline}
                pub
        []
                Self::init_slow()
            }
 {
    ;
                 /// Note that this is  expensive so it isjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

        java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
){
        Ok > {
            // Generate seed outside of critical section.
            let seed =                         // SAFETY        macro_rules! java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

            loop java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
}
                    [java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
   Ordering:/   proper),is -per java.lang.StringIndexOutOfBoundsException: Range [25, 18) out of bounds for length 46
                    Ordering::Acquire                    
                ){
                    Ok(_) 
                        // SAFETY: we just acquired an exclusive lock.// a common input. So we want our global seeds that are XOR'ed with the
                        *java.lang.StringIndexOutOfBoundsException: Range [49, 44) out of bounds for length 63
s
                        eturn;
                    },

                    Err(INIT)        e  FORCED_ONES,

java.lang.StringIndexOutOfBoundsException: Index 83 out of bounds for length 83
                    / access to proper locks), this is a one-time-per-program
                         / initialization, and the critical section is only a few
                    / store instructions, so it'll be fine.
                    _> ::spin_loop)
                 |FORCED_ONES/   outsideof            // Generate seed outside of critical
            }
        }

        #[inline matchjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 5
pub self > 'java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
             java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
/
unsafe *GLOBAL_SEED_STORAGESelf}
        inlinejava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5


#/ Use address space layout randomization as our main randomness source.
}
    /java.lang.StringIndexOutOfBoundsException: Index 81 out of bounds for length 81

 [eriveCopyjava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 31
    pub struct GlobalSeed},

     /
        #[inline(always)]
        // access to proper locks), this is a one-time-per-program
            Self {         static_ptr &as*_java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
        }

         = mix(seed,,func_ptr as usize as u64java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
        java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
            &super::FIXED_GLOBAL_SEED
        }
    }
}

pub(crateuse global::GlobalSeed // SAFETY: our constructor ensured  are inthejava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 26

Messung V0.5 in Prozent
C=75 H=91 G=83

¤ Dauer der Verarbeitung: 0.8 Sekunden  ¤

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