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Improve sanity checking of MBEDTLS_HAVE_INTxx

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman
2023-09-06 08:41:05 +01:00
parent b7b8c09c81
commit 85061b97b5
2 changed files with 9 additions and 2 deletions
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9
include/mbedtls/bignum.h
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@@ -186,6 +186,15 @@ typedef uint64_t mbedtls_t_udbl;
#endif /* !MBEDTLS_NO_UDBL_DIVISION */
#endif /* !MBEDTLS_HAVE_INT64 */
/*
* Sanity check that exactly one of MBEDTLS_HAVE_INT32 or MBEDTLS_HAVE_INT64 is defined,
* so that code elsewhere doesn't have to check.
*/
#if (!(defined(MBEDTLS_HAVE_INT32) || defined(MBEDTLS_HAVE_INT64))) || \
(defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64))
#error "Only 32-bit or 64-bit limbs are supported in bignum"
#endif
/** \typedef mbedtls_mpi_uint
* \brief The type of machine digits in a bignum, called _limbs_.
*