Vector Optimized Library of Kernels  2.4
Architecture-tuned implementations of math kernels
saturation_arithmetic.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2016 Free Software Foundation, Inc.
4  *
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22 
23 
24 #ifndef INCLUDED_volk_saturation_arithmetic_H_
25 #define INCLUDED_volk_saturation_arithmetic_H_
26 
27 #include <limits.h>
28 
29 static inline int16_t sat_adds16i(int16_t x, int16_t y)
30 {
31  int32_t res = (int32_t)x + (int32_t)y;
32 
33  if (res < SHRT_MIN)
34  res = SHRT_MIN;
35  if (res > SHRT_MAX)
36  res = SHRT_MAX;
37 
38  return res;
39 }
40 
41 static inline int16_t sat_muls16i(int16_t x, int16_t y)
42 {
43  int32_t res = (int32_t)x * (int32_t)y;
44 
45  if (res < SHRT_MIN)
46  res = SHRT_MIN;
47  if (res > SHRT_MAX)
48  res = SHRT_MAX;
49 
50  return res;
51 }
52 
53 #endif /* INCLUDED_volk_saturation_arithmetic_H_ */
static int16_t sat_muls16i(int16_t x, int16_t y)
Definition: saturation_arithmetic.h:41
static int16_t sat_adds16i(int16_t x, int16_t y)
Definition: saturation_arithmetic.h:29