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https://github.com/firestar5683/StarPilot.git
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Vehicle Researcher
bcd4bb4821
date: 2023-02-17T21:02:50 master commit: 89f68bf0cbf53a81b0553d3816fdbe522f941fa1
31 lines
736 B
C
31 lines
736 B
C
#define MIN(a,b) \
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({ __typeof__ (a) _a = (a); \
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__typeof__ (b) _b = (b); \
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(_a < _b) ? _a : _b; })
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#define MAX(a,b) \
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({ __typeof__ (a) _a = (a); \
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__typeof__ (b) _b = (b); \
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(_a > _b) ? _a : _b; })
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#define ABS(a) \
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({ __typeof__ (a) _a = (a); \
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(_a > 0) ? _a : (-_a); })
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#ifndef NULL
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#define NULL ((void*)0)
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#endif
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// STM32 HAL defines this
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#ifndef UNUSED
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#define UNUSED(x) ((void)(x))
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#endif
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#define COMPILE_TIME_ASSERT(pred) ((void)sizeof(char[1 - (2 * ((int)(!(pred))))]))
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// compute the time elapsed (in microseconds) from 2 counter samples
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// case where ts < ts_last is ok: overflow is properly re-casted into uint32_t
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uint32_t get_ts_elapsed(uint32_t ts, uint32_t ts_last) {
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return ts - ts_last;
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}
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