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mpint: add a few simple bitwise operations.

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I want to use mp_xor_into as part of an upcoming test program, and
while I'm at it, I thought I'd add a few other obvious bitops too.
This commit is contained in:
Simon Tatham
2019-02-09 14:00:06 +00:00
parent 8ccbd164c7
commit bfae3ee96e
4 changed files with 61 additions and 0 deletions
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8
mpint.h
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@ -197,6 +197,14 @@ mp_int *mp_add(mp_int *x, mp_int *y);
mp_int *mp_sub(mp_int *x, mp_int *y);
mp_int *mp_mul(mp_int *x, mp_int *y);
/*
* Bitwise operations.
*/
void mp_and_into(mp_int *r, mp_int *a, mp_int *b);
void mp_or_into(mp_int *r, mp_int *a, mp_int *b);
void mp_xor_into(mp_int *r, mp_int *a, mp_int *b);
void mp_bic_into(mp_int *r, mp_int *a, mp_int *b);
/*
* Addition, subtraction and multiplication with one argument small
* enough to fit in a C integer. For mp_mul_integer_into, it has to be