Type-Generic Compiler Wrappers
include/compiler/wrapper.h View source View on GitHubMacros
Section titled “Macros”cw_alloc_0
Section titled “cw_alloc_0”#define cw_alloc_0()Expansion
#define cw_alloc_0() cc_malloc_like cc_warn_unused_resultcw_alloc_1
Section titled “cw_alloc_1”#define cw_alloc_1(sz)Expansion
#define cw_alloc_1(sz) cw_alloc_0() cc_alloc_size(sz)cw_alloc_2
Section titled “cw_alloc_2”#define cw_alloc_2(sz, align)Expansion
#define cw_alloc_2(sz, align) cw_alloc_1(sz) cc_alloc_align(align)cw_alloc
Section titled “cw_alloc”cw_popcount
Section titled “cw_popcount”#define cw_popcount(x)Expansion
#define cw_popcount(x) \
cc_generic((x), unsigned char : ci_popcount((unsigned int) (x)), \
signed char : ci_popcount((unsigned int) (unsigned char) (x)), \
char : ci_popcount((unsigned int) (unsigned char) (x)), \
unsigned short : ci_popcount((unsigned int) (x)), \
short : ci_popcount((unsigned int) (unsigned short) (x)), \
unsigned int : ci_popcount(x), \
int : ci_popcount((unsigned int) (x)), \
unsigned long : ci_popcountl(x), \
long : ci_popcountl((unsigned long) (x)), \
unsigned long long : ci_popcountll(x), \
long long : ci_popcountll((unsigned long long) (x)), \
default : ci_popcountll((unsigned long long) (x)))cw_bswap16
Section titled “cw_bswap16”#define cw_bswap16(x)Expansion
#define cw_bswap16(x) ci_bswap16(x)cw_bswap32
Section titled “cw_bswap32”#define cw_bswap32(x)Expansion
#define cw_bswap32(x) ci_bswap32(x)cw_bswap64
Section titled “cw_bswap64”#define cw_bswap64(x)Expansion
#define cw_bswap64(x) ci_bswap64(x)cw_bswap
Section titled “cw_bswap”#define cw_bswap(x)Expansion
#define cw_bswap(x) \
cc_generic((x), uint16_t : ci_bswap16(x), \
int16_t : (int16_t) ci_bswap16((uint16_t) (x)), \
uint32_t : ci_bswap32(x), \
int32_t : (int32_t) ci_bswap32((uint32_t) (x)), \
uint64_t : ci_bswap64(x), \
int64_t : (int64_t) ci_bswap64((uint64_t) (x)), \
default : (sizeof(x) == 2 ? ci_bswap16((uint16_t) (x)) \
: sizeof(x) == 4 ? ci_bswap32((uint32_t) (x)) \
: sizeof(x) == 8 ? ci_bswap64((uint64_t) (x)) \
: (x)))cw_clz
Section titled “cw_clz”#define cw_clz(x)Count Leading Zeros
Expansion
#define cw_clz(x) \
({ \
__auto_type __cw_clz_x = (x); \
ct_typecheck_unsigned_as(__cw_clz_x, x); \
__cw_clz_x == 0 ? (unsigned int) ct_bitsizeof(__cw_clz_x) \
: sizeof(__cw_clz_x) <= sizeof(unsigned int) \
? (unsigned int) (ci_clz((unsigned int) __cw_clz_x) - \
(ct_bitsizeof(unsigned int) - \
ct_bitsizeof(__cw_clz_x))) \
: sizeof(__cw_clz_x) <= sizeof(unsigned long) \
? (unsigned int) (ci_clzl((unsigned long) __cw_clz_x) - \
(ct_bitsizeof(unsigned long) - \
ct_bitsizeof(__cw_clz_x))) \
: (unsigned int) ci_clzll((unsigned long long) __cw_clz_x); \
})cw_clz_nonzero
Section titled “cw_clz_nonzero”#define cw_clz_nonzero(x)Count Leading Zeros
Expansion
#define cw_clz_nonzero(x) \
({ \
__auto_type __cw_clzn_x = (x); \
ct_typecheck_unsigned_as(__cw_clzn_x, x); \
sizeof(__cw_clzn_x) <= sizeof(unsigned int) \
? (unsigned int) (ci_clz((unsigned int) __cw_clzn_x) - \
(ct_bitsizeof(unsigned int) - \
ct_bitsizeof(__cw_clzn_x))) \
: sizeof(__cw_clzn_x) <= sizeof(unsigned long) \
? (unsigned int) (ci_clzl((unsigned long) __cw_clzn_x) - \
(ct_bitsizeof(unsigned long) - \
ct_bitsizeof(__cw_clzn_x))) \
: (unsigned int) ci_clzll((unsigned long long) __cw_clzn_x); \
})cw_ctz
Section titled “cw_ctz”#define cw_ctz(x)Count Trailing Zeros
Expansion
#define cw_ctz(x) \
({ \
__auto_type __cw_ctz_x = (x); \
ct_typecheck_unsigned_as(__cw_ctz_x, x); \
__cw_ctz_x == 0 \
? (unsigned int) ct_bitsizeof(__cw_ctz_x) \
: (sizeof(__cw_ctz_x) <= sizeof(unsigned int) \
? (unsigned int) ci_ctz((unsigned int) __cw_ctz_x) \
: sizeof(__cw_ctz_x) <= sizeof(unsigned long) \
? (unsigned int) ci_ctzl((unsigned long) __cw_ctz_x) \
: (unsigned int) ci_ctzll( \
(unsigned long long) __cw_ctz_x)); \
})cw_ctz_nonzero
Section titled “cw_ctz_nonzero”#define cw_ctz_nonzero(x)Fast Count Trailing Zeros: requires x != 0
Expansion
#define cw_ctz_nonzero(x) \
({ \
__auto_type __cw_ctzn_x = (x); \
ct_typecheck_unsigned_as(__cw_ctzn_x, x); \
sizeof(__cw_ctzn_x) <= sizeof(unsigned int) \
? (unsigned int) ci_ctz((unsigned int) __cw_ctzn_x) \
: sizeof(__cw_ctzn_x) <= sizeof(unsigned long) \
? (unsigned int) ci_ctzl((unsigned long) __cw_ctzn_x) \
: (unsigned int) ci_ctzll((unsigned long long) __cw_ctzn_x); \
})cw_ffs
Section titled “cw_ffs”#define cw_ffs(x)Find First Set (1-based index, 0 if none)
Expansion
#define cw_ffs(x) \
({ \
__auto_type __cw_ffs_x = (x); \
ct_typecheck_integer_as(__cw_ffs_x, x); \
sizeof(__cw_ffs_x) <= sizeof(unsigned int) \
? (unsigned int) ci_ffs((int) __cw_ffs_x) \
: sizeof(__cw_ffs_x) <= sizeof(unsigned long) \
? (unsigned int) ci_ffsl((long) __cw_ffs_x) \
: (unsigned int) ci_ffsll((long long) __cw_ffs_x); \
})cw_fls
Section titled “cw_fls”#define cw_fls(x)Find Last Set (1-based index, 0 if none)
Expansion
#define cw_fls(x) \
({ \
__auto_type __cw_fls_x = (x); \
ct_typecheck_unsigned_as(__cw_fls_x, x); \
__cw_fls_x == 0 ? 0u \
: (unsigned int) (ct_bitsizeof(__cw_fls_x) - \
cw_clz_nonzero(__cw_fls_x)); \
})cw_parity
Section titled “cw_parity”#define cw_parity(x)Expansion
#define cw_parity(x) \
cc_generic( \
(x), unsigned char : ci_parity((unsigned int) (x)), \
signed char : ci_parity((unsigned int) (unsigned char) (x)), \
char : ci_parity((unsigned int) (unsigned char) (x)), \
unsigned short : ci_parity((unsigned int) (x)), \
short : ci_parity((unsigned int) (unsigned short) (x)), \
unsigned int : ci_parity(x), int : ci_parity((unsigned int) (x)), \
unsigned long : ci_parityl(x), long : ci_parityl((unsigned long) (x)), \
unsigned long long : ci_parityll(x), \
long long : ci_parityll((unsigned long long) (x)), \
default : ci_parityll((unsigned long long) (x)))cw_rol
Section titled “cw_rol”#define cw_rol(x, n)Expansion
#define cw_rol(x, n) \
({ \
__auto_type __cw_rol_x = (x); \
__auto_type __cw_rol_n = (n); \
ct_typecheck_unsigned_as(__cw_rol_x, x); \
ct_typecheck_integer_as(__cw_rol_n, n); \
unsigned int __cw_rol_shift = (unsigned int) __cw_rol_n; \
unsigned int __cw_rol_w = (unsigned int) ct_bitsizeof(__cw_rol_x); \
__cw_rol_shift &= (__cw_rol_w - 1u); \
(typeof(__cw_rol_x)) ((__cw_rol_x << __cw_rol_shift) | \
(__cw_rol_x >> ((__cw_rol_w - __cw_rol_shift) & \
(__cw_rol_w - 1u)))); \
})cw_ror
Section titled “cw_ror”#define cw_ror(x, n)Expansion
#define cw_ror(x, n) \
({ \
__auto_type __cw_ror_x = (x); \
__auto_type __cw_ror_n = (n); \
ct_typecheck_unsigned_as(__cw_ror_x, x); \
ct_typecheck_integer_as(__cw_ror_n, n); \
unsigned int __cw_ror_shift = (unsigned int) __cw_ror_n; \
unsigned int __cw_ror_w = (unsigned int) ct_bitsizeof(__cw_ror_x); \
__cw_ror_shift &= (__cw_ror_w - 1u); \
(typeof(__cw_ror_x)) ((__cw_ror_x >> __cw_ror_shift) | \
(__cw_ror_x << ((__cw_ror_w - __cw_ror_shift) & \
(__cw_ror_w - 1u)))); \
})cw_sat_add
Section titled “cw_sat_add”#define cw_sat_add(a, b)Expansion
#define cw_sat_add(a, b) \
({ \
__auto_type __cw_sa_a = (a); \
__auto_type __cw_sa_b = (b); \
typeof(__cw_sa_a) __cw_sa_res; \
if (ci_add_overflow(__cw_sa_a, __cw_sa_b, &__cw_sa_res)) { \
__cw_sa_res = (__cw_sa_b > 0) ? ct_max_val(typeof(__cw_sa_a)) \
: ct_min_val(typeof(__cw_sa_a)); \
} \
__cw_sa_res; \
})cw_sat_sub
Section titled “cw_sat_sub”#define cw_sat_sub(a, b)Expansion
#define cw_sat_sub(a, b) \
({ \
__auto_type __cw_ss_a = (a); \
__auto_type __cw_ss_b = (b); \
typeof(__cw_ss_a) __cw_ss_res; \
if (ci_sub_overflow(__cw_ss_a, __cw_ss_b, &__cw_ss_res)) { \
__cw_ss_res = (__cw_ss_b > 0) ? ct_min_val(typeof(__cw_ss_a)) \
: ct_max_val(typeof(__cw_ss_a)); \
} \
__cw_ss_res; \
})