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math.big: fix the order of calculations in mod_pow() to improve performance (#24935)

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Mike 2025-07-20 15:27:20 +03:00 • committed by GitHub
parent e3d047822d
commit 987c211517
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1 changed files with 2 additions and 2 deletions
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4
vlib/math/big/integer.v
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@ -605,9 +605,9 @@ pub fn (base Integer) mod_pow(exponent u32, modulus Integer) Integer {
mut y := one_int
for n > 1 {
if n & 1 == 1 {
y *= x % modulus
y = (y * x) % modulus
}
x *= x % modulus
x = (x * x) % modulus
n >>= 1
}
return x * y % modulus