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81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
#pragma once
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//
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// FILE: printHelpers.h
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// AUTHOR: Rob Tillaart
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// DATE: 2018-01-21
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// VERSION: 0.2.4
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// PUPROSE: Arduino library to help formatting for printing.
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// URL: https://github.com/RobTillaart/printHelpers
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#include "Arduino.h"
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#include "stdlib.h"
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#define PRINTHELPERS_VERSION (F("0.2.4"))
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// global buffer used by all functions so no static buffer in every function
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// is needed ==> results need to be printed/copied asap
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// not usable in multi-threading environments (use with care)
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//
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// 24 is a pretty safe minimum
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#ifndef PRINTBUFFERSIZE
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#define PRINTBUFFERSIZE 66
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#endif
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////////////////////////////////////////////////////////////
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//
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// PRINT 64 BIT
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//
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// print64 note
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// buffer size 66 will work for base 2 -36
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// buffer size 34 will work for base 4 -36
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// buffer size 24 will work for base 8 -36
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// buffer size 22 will work for base 10 - 36
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char * print64(int64_t value, uint8_t base = 10);
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char * print64(uint64_t value, uint8_t base = 10);
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////////////////////////////////////////////////////////////
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//
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// SCIENTIFIC NOTATIION
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//
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// typical buffer size for 8 byte double is 22 bytes
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// 15 bytes mantissa, sign dot E-xxx
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// em = exponentMultiple.
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char * scieng(double value, uint8_t decimals, uint8_t em);
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char * eng(double value, uint8_t decimals);
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char * sci(double value, uint8_t decimals);
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void sci(Stream &str, double value, uint8_t decimals);
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////////////////////////////////////////////////////////////
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//
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// toBytes
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//
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// official support to UDA == 1024^12
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// kilo mega giga tera peta exa (1024^6)
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// zetta yotta xona weka vunda uda (1024^12)
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//
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// (treda Byte == TDB is the next one and it is 2 char
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// so code wise difficult and as it is seldom used, support stops there.
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//
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// To have some support the code uses lowercase for the next 8 levels
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// treda sorta rinta quexa pepta ocha nena minga luma (1024 ^21 ~~ 10^63)
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char * toBytes(double value, uint8_t decimals = 2);
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// -- END OF FILE --
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