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23 lines
577 B
C
23 lines
577 B
C
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#ifndef freeMemory_h
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#define freeMemory_h
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// thanks go to https://github.com/mpflaga/Arduino-MemoryFree
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#ifdef __arm__
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// should use uinstd.h to define sbrk but Due causes a conflict
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extern "C" char* sbrk(int incr);
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#else // __ARM__
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extern char *__brkval;
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#endif // __arm__
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int freeMemory() {
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char top;
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#ifdef __arm__
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return &top - reinterpret_cast<char*>(sbrk(0));
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#elif defined(CORE_TEENSY) || (ARDUINO > 103 && ARDUINO != 151)
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return &top - __brkval;
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#else // __arm__
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return __brkval ? &top - __brkval : &top - __malloc_heap_start;
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#endif // __arm__
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}
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#endif
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