diff options
| -rw-r--r-- | src/include/ipxe/bigint.h | 13 | ||||
| -rw-r--r-- | src/tests/bigint_test.c | 10 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/include/ipxe/bigint.h b/src/include/ipxe/bigint.h index 36138dd..820d306 100644 --- a/src/include/ipxe/bigint.h +++ b/src/include/ipxe/bigint.h @@ -8,6 +8,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); +#include <assert.h> + /** * Define a big-integer type * @@ -177,6 +179,17 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); } while ( 0 ) /** + * Copy big integer + * + * @v source Source big integer + * @v dest Destination big integer + */ +#define bigint_copy( source, dest ) do { \ + build_assert ( sizeof ( *(source) ) == sizeof ( *(dest) ) ); \ + bigint_shrink ( (source), (dest) ); \ + } while ( 0 ) + +/** * Multiply big integers * * @v multiplicand Big integer to be multiplied diff --git a/src/tests/bigint_test.c b/src/tests/bigint_test.c index 02568df..484c591 100644 --- a/src/tests/bigint_test.c +++ b/src/tests/bigint_test.c @@ -149,6 +149,16 @@ void bigint_shrink_sample ( const bigint_element_t *source0, bigint_shrink ( source, dest ); } +void bigint_copy_sample ( const bigint_element_t *source0, + bigint_element_t *dest0, unsigned int size ) { + const bigint_t ( size ) *source __attribute__ (( may_alias )) + = ( ( const void * ) source0 ); + bigint_t ( size ) *dest __attribute__ (( may_alias )) + = ( ( void * ) dest0 ); + + bigint_copy ( source, dest ); +} + void bigint_multiply_sample ( const bigint_element_t *multiplicand0, unsigned int multiplicand_size, const bigint_element_t *multiplier0, |