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Diffstat (limited to 'libtommath/bn_mp_ubin_size.c')
-rw-r--r-- | libtommath/bn_mp_ubin_size.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libtommath/bn_mp_ubin_size.c b/libtommath/bn_mp_ubin_size.c new file mode 100644 index 0000000..21230b4 --- /dev/null +++ b/libtommath/bn_mp_ubin_size.c @@ -0,0 +1,12 @@ +#include "tommath_private.h" +#ifdef BN_MP_UBIN_SIZE_C +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ + +/* get the size for an unsigned equivalent */ +size_t mp_ubin_size(const mp_int *a) +{ + size_t size = (size_t)mp_count_bits(a); + return (size / 8u) + (((size & 7u) != 0u) ? 1u : 0u); +} +#endif |