From a200f6f8551e7125a767798d0426304a9d7a0a2f Mon Sep 17 00:00:00 2001 From: Gabor Mezei Date: Wed, 3 Aug 2022 12:59:57 +0200 Subject: [PATCH] Add macro definitions to the tests Signed-off-by: Gabor Mezei --- tests/suites/test_suite_mpi.function | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tests/suites/test_suite_mpi.function b/tests/suites/test_suite_mpi.function index de66fdd6a..6be7b2179 100644 --- a/tests/suites/test_suite_mpi.function +++ b/tests/suites/test_suite_mpi.function @@ -11,6 +11,16 @@ #define MPI_MAX_BITS_LARGER_THAN_792 #endif +#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */ +#define biL (ciL << 3) /* bits in limb */ + +/* + * Convert between bits/chars and number of limbs + * Divide first in order to avoid potential overflows + */ +#define BITS_TO_LIMBS(i) ( (i) / biL + ( (i) % biL != 0 ) ) +#define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) ) + /* Check the validity of the sign bit in an MPI object. Reject representations * that are not supported by the rest of the library and indicate a bug when * constructing the value. */