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sys/include/net/gnrc/gomach.h: fix cpp preprocessorErrorDirective

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Preprocesor fails to evaluate the if condicion on L91-92 because
RTT_FREQUENCY is not defined, and therefore a division by 0 occurs.
TO avoid this replicate the RTT_FREQUENCY undefined warning.
This commit is contained in:
Francisco Molina 2019-11-21 09:22:30 +01:00
parent d2e90b2370
commit fe180daa3b
1 changed files with 4 additions and 0 deletions
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sys/include/net/gnrc/gomach/gomach.h
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@ -85,6 +85,9 @@ extern "C" {
#define GNRC_GOMACH_SUPERFRAME_DURATION_US (300LU * US_PER_MS)
#endif
#ifndef RTT_FREQUENCY
#error "RTT_FREQUENCY undefined."
#else
#if ((GNRC_GOMACH_SUPERFRAME_DURATION_US < ((1000LU *US_PER_MS) / RTT_FREQUENCY)) || \
(GNRC_GOMACH_SUPERFRAME_DURATION_US < (10 *GNRC_GOMACH_CP_DURATION_US)))
#undef GNRC_GOMACH_SUPERFRAME_DURATION_US
@ -94,6 +97,7 @@ extern "C" {
#define GNRC_GOMACH_SUPERFRAME_DURATION_US (10 * GNRC_GOMACH_CP_DURATION_US)
#endif
#endif
#endif
/**
* @brief The maximum duration of the random period at the end of GoMacH's