diff options
Diffstat (limited to 'py/misc.h')
| -rw-r--r-- | py/misc.h | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -105,7 +105,7 @@ void *m_realloc(void *ptr, size_t new_num_bytes); void *m_realloc_maybe(void *ptr, size_t new_num_bytes, bool allow_move); void m_free(void *ptr); #endif -NORETURN void m_malloc_fail(size_t num_bytes); +MP_NORETURN void m_malloc_fail(size_t num_bytes); #if MICROPY_TRACKED_ALLOC // These alloc/free functions track the pointers in a linked list so the GC does not reclaim @@ -390,11 +390,16 @@ static inline uint32_t mp_popcount(uint32_t x) { x = x - ((x >> 1) & 0x55555555); x = (x & 0x33333333) + ((x >> 2) & 0x33333333); x = (x + (x >> 4)) & 0x0F0F0F0F; - return x * 0x01010101; + return (x * 0x01010101) >> 24; } #endif #endif +#define MP_FIT_UNSIGNED(bits, value) (((value) & (~0U << (bits))) == 0) +#define MP_FIT_SIGNED(bits, value) \ + (MP_FIT_UNSIGNED(((bits) - 1), (value)) || \ + (((value) & (~0U << ((bits) - 1))) == (~0U << ((bits) - 1)))) + // mp_int_t can be larger than long, i.e. Windows 64-bit, nan-box variants static inline uint32_t mp_clz_mpi(mp_int_t x) { #ifdef __XC16__ |