merge version 1.4.5 into master #17
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…y other libraries
…ically select variant depending on performance numbers from AutoBenchmark
…t variant on each platform
… more targetted 'using ace_common::PrintStr' statements
…g getCstr() for backwards compatibility
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examples/AutoBenchmarkprogram which replacesexamples/Udiv1000.GitHub Discussions.
decToHexDivOnly()anddecToHexDivMod()to AutoBenchmark, andupdate
decToHex()to automatically select the faster one. On AVR,decToHexDivMod()seems to be 2 clock cycles (125 ns) faster. But on32-bit processors,
decToHexDivOnly()is 2X faster on those withouthardware divide (e.g. SAMD21, ESP8266), and 10-20% faster on processors
with hardware divide (e.g. STM32, ESP32, Teensy 3.2).
uint16_twhen calculating exponential decay average.PrintStrBase::cstr()as a shorter, more convenient version ofPrintStrBase::getCstr(). RetaingetCstr()for backwards compatibility.AutoBenchmark.