diff --git a/firmware/baseband/spectrum_collector.cpp b/firmware/baseband/spectrum_collector.cpp index c15d0cbd..4256b362 100644 --- a/firmware/baseband/spectrum_collector.cpp +++ b/firmware/baseband/spectrum_collector.cpp @@ -106,12 +106,12 @@ void SpectrumCollector::post_message(const buffer_c16_t& data) { } /* 3 types of Windowing time domain shapes declaration , but only used Hamming , shapes for FFT - gcc10 compile sintax error c/m (1/2), + GCC10 compile sintax error c/m (1/2), The primary diff. between const and constexpr variables is that the initialization of a const var can be deferred until run time. A constexpr var. must be initialized at compile time. ... A var. can be declared with constexpr , when it has a literal type and is initialized. - gcc10 compile sintax error c/m (2/2) + GCC compile sintax error c/m (2/2) Static assert --> Tests a software assertion at compile time for debugging. we keep the same safety compile protection , just changing slightly the sintax checking that the size of the called array is power of 2. if the bool "constant expression" is TRUE (normal case) , the declaration has no effect. @@ -119,24 +119,24 @@ void SpectrumCollector::post_message(const buffer_c16_t& data) { */ -template // Although currently we are not using that Windowing shape, we apply the same gcc10 compile error c/m +template // Although currently we are not using that Windowing shape, we apply the same GCC10 compile error c/m static typename T::value_type spectrum_window_none(const T& s, const size_t i) { - static_assert(power_of_two(sizeof(s)), "Array size must be power of 2"); // c/m compile error gcc10 , OK for all gcc versions. + static_assert(power_of_two(sizeof(s)), "Array size must be power of 2"); // c/m compile error GCC10 , OK for all GCC versions. return s[i]; }; template // Currently we are calling and using that Window shape. static typename T::value_type spectrum_window_hamming_3(const T& s, const size_t i) { - static_assert(power_of_two(sizeof(s)), "Array size must be power of 2"); // c/m compile error gcc10 , OK for all gcc versions. - const size_t mask = s.size() - 1; // c/m compile error gcc10 , constexpr->const + static_assert(power_of_two(sizeof(s)), "Array size must be power of 2"); // c/m compile error GCC10 , OK for all GCC versions. + const size_t mask = s.size() - 1; // c/m compile error GCC10 , constexpr->const // Three point Hamming window. return s[i] * 0.54f + (s[(i-1) & mask] + s[(i+1) & mask]) * -0.23f; }; -template // Although currently we are not using that Windowing shape, we apply the same gcc10 compile error c/m +template // Although currently we are not using that Windowing shape, we apply the same GCC10 compile error c/m static typename T::value_type spectrum_window_blackman_3(const T& s, const size_t i) { - static_assert(power_of_two(sizeof(s)), "Array size must be power of 2"); // c/m compile error gcc10 , OK for all gcc versions. - const size_t mask = s.size() - 1; // c/m compile error gcc10 , constexpr->const + static_assert(power_of_two(sizeof(s)), "Array size must be power of 2"); // c/m compile error GCC10 , OK for all GCC versions. + const size_t mask = s.size() - 1; // c/m compile error GCC10 , constexpr->const // Three term Blackman window. constexpr float alpha = 0.42f; constexpr float beta = 0.5f * 0.5f;