kopia lustrzana https://github.com/jamescoxon/dl-fldigi
111 wiersze
3.4 KiB
C
111 wiersze
3.4 KiB
C
/* This file is included by config.h */
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#ifndef UTIL_H
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#define UTIL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#ifndef powerof2
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# define powerof2(n) ((((n) - 1) & (n)) == 0)
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#endif
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#ifndef MAX
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# define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef MIN
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# define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef CLAMP
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# define CLAMP(x, low, high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
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#endif
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#ifdef __GNUC__
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# if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
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# define full_memory_barrier() __sync_synchronize()
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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# elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || defined(__x86_64__)
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# define full_memory_barrier() asm volatile ("lock; addl $0,0(%%esp)":::"memory")
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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/*
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These would be faster on SSE2-capable processors:
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# define full_memory_barrier() asm volatile ("mfence":::"memory")
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# define read_memory_barrier() asm volatile ("lfence":::"memory")
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# define write_memory_barrier() asm volatile ("sfence":::"memory")
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*/
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# else
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# warning Memory barriers not defined on this system
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# define full_memory_barrier() ((void)0)
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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# endif
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#else
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# warning Memory barriers not defined on this system
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# define full_memory_barrier() ((void)0)
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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#endif
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/* http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html */
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#if defined(__GNUC__) && (__GNUC__ >= 3)
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# define likely(x) __builtin_expect (!!(x), 1)
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# define unlikely(x) __builtin_expect (!!(x), 0)
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# define used__ __attribute__ ((__used__))
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# define unused__ __attribute__ ((__unused__))
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# define must_check__ __attribute__ ((__warn_unused_result__))
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# define deprecated__ __attribute__ ((__deprecated__))
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# define noreturn__ __attribute__ ((__noreturn__))
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# define pure__ __attribute__ ((__pure__))
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# define const__ __attribute__ ((__const__))
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# define malloc__ __attribute__ ((__malloc__))
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# define packed__ __attribute__ ((__packed__))
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# define inline__ inline __attribute__ ((__always_inline__))
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# define noinline__ __attribute__ ((__noinline__))
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# define nonnull__(x) __attribute__ ((__nonnull__(x)))
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#else
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# define likely(x) (x)
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# define unlikely(x) (x)
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# define used__
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# define unused__
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# define must_check__
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# define deprecated__
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# define noreturn__
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# define pure__
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# define const__
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# define malloc__
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# define packed__
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# define inline__
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# define noinline__
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# define nonnull__(x)
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#endif
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#if defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
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# define hot__ __attribute__ ((__hot__))
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# define cold__ __attribute__ ((__cold__))
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#else
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# define hot__
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# define cold__
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#endif
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const__ uint32_t ceil2(uint32_t n);
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const__ uint32_t floor2(uint32_t n);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* UTIL_H */
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/*
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Local Variables:
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mode: c++
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c-file-style: "linux"
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End:
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*/
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