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AP_Math: Add missing constexpr

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Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>
This commit is contained in:
Patrick José Pereira
2020-03-17 10:23:47 +11:00
committed by Andrew Tridgell
parent c9f2b9ff87
commit 1635054c4f
2 changed files with 8 additions and 8 deletions
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libraries/AP_Math/AP_Math.cpp
+1 -1
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@@ -103,7 +103,7 @@ float linear_interpolate(float low_output, float high_output,
* alpha range: [0,1] min to max expo
* input range: [-1,1]
*/
float expo_curve(float alpha, float x)
constexpr float expo_curve(float alpha, float x)
{
return (1.0f - alpha) * x + alpha * x * x * x;
}
libraries/AP_Math/AP_Math.h
+7 -7
View File
@@ -215,32 +215,32 @@ static inline auto MAX(const A &one, const B &two) -> decltype(one > two ? one :
return one > two ? one : two;
}
inline uint32_t hz_to_nsec(uint32_t freq)
inline constexpr uint32_t hz_to_nsec(uint32_t freq)
{
return AP_NSEC_PER_SEC / freq;
}
inline uint32_t nsec_to_hz(uint32_t nsec)
inline constexpr uint32_t nsec_to_hz(uint32_t nsec)
{
return AP_NSEC_PER_SEC / nsec;
}
inline uint32_t usec_to_nsec(uint32_t usec)
inline constexpr uint32_t usec_to_nsec(uint32_t usec)
{
return usec * AP_NSEC_PER_USEC;
}
inline uint32_t nsec_to_usec(uint32_t nsec)
inline constexpr uint32_t nsec_to_usec(uint32_t nsec)
{
return nsec / AP_NSEC_PER_USEC;
}
inline uint32_t hz_to_usec(uint32_t freq)
inline constexpr uint32_t hz_to_usec(uint32_t freq)
{
return AP_USEC_PER_SEC / freq;
}
inline uint32_t usec_to_hz(uint32_t usec)
inline constexpr uint32_t usec_to_hz(uint32_t usec)
{
return AP_USEC_PER_SEC / usec;
}
@@ -256,7 +256,7 @@ float linear_interpolate(float low_output, float high_output,
* alpha range: [0,1] min to max expo
* input range: [-1,1]
*/
float expo_curve(float alpha, float input);
constexpr float expo_curve(float alpha, float input);
/* throttle curve generator
* thr_mid: output at mid stick