Subtract signed BIGNUMs: r = a ‐ b.

Synopsis

Declared in <openssl/bn.h>

int
BN_sub(
    BIGNUM* r,
    BIGNUM const* a,
    BIGNUM const* b);

Return Value

1 on success, or 0 on error.

Parameters

Name

Description

r

Destination difference.

a

Minuend.

b

Subtrahend.

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