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< title > ArduPilot Libraries: c++.cpp Source File< / title >
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< h1 > c++.cpp< / h1 > < / div >
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< div class = "contents" >
< a href = "c_09_09_8cpp.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < pre class = "fragment" > < a name = "l00001" > < / a > 00001 < span class = "comment" > // -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*-< / span >
< a name = "l00002" > < / a > 00002
< a name = "l00003" > < / a > 00003 < span class = "comment" > //< / span >
< a name = "l00004" > < / a > 00004 < span class = "comment" > // C++ runtime support not provided by Arduino< / span >
< a name = "l00005" > < / a > 00005 < span class = "comment" > //< / span >
< a name = "l00006" > < / a > 00006 < span class = "comment" > // Note: use new/delete with caution. The heap is small and< / span >
< a name = "l00007" > < / a > 00007 < span class = "comment" > // easily fragmented.< / span >
< a name = "l00008" > < / a > 00008 < span class = "comment" > //< / span >
< a name = "l00009" > < / a > 00009
< a name = "l00010" > < / a > 00010 < span class = "preprocessor" > #include < stdlib.h> < / span >
< a name = "l00011" > < / a > 00011 < span class = "preprocessor" > #include " < a class = "code" href = "c_09_09_8h.html" > c++.h< / a > " < / span >
< a name = "l00012" > < / a > 00012 < span class = "preprocessor" > #include " < a class = "code" href = "_w_program_8h.html" > WProgram.h< / a > " < / span >
< a name = "l00013" > < / a > 00013
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< a name = "l00014" > < / a > < a class = "code" href = "c_09_09_8cpp.html#a205ed048fdf5259c2e8e0cb60ee8f719" > 00014< / a > < span class = "keywordtype" > void< / span > * < a class = "code" href = "c_09_09_8cpp.html#a205ed048fdf5259c2e8e0cb60ee8f719" > operator new< / a > (< span class = "keywordtype" > size_t< / span > size)
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< a name = "l00015" > < / a > 00015 {
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< a name = "l00016" > < / a > 00016 < span class = "preprocessor" > #ifdef AP_DISPLAYMEM< / span >
< a name = "l00017" > < / a > 00017 < span class = "preprocessor" > < / span > < a class = "code" href = "c_09_09_8cpp.html#a588befcce33478fd49d0caf32b362d15" > displayMemory< / a > ();
< a name = "l00018" > < / a > 00018 < span class = "preprocessor" > #endif< / span >
< a name = "l00019" > < / a > 00019 < span class = "preprocessor" > < / span > < span class = "keywordflow" > return< / span > (calloc(size, 1));
< a name = "l00020" > < / a > 00020 }
< a name = "l00021" > < / a > 00021
< a name = "l00022" > < / a > < a class = "code" href = "c_09_09_8cpp.html#a86107594327f3a001230df9802cd4422" > 00022< / a > < span class = "keywordtype" > void< / span > < a class = "code" href = "c_09_09_8cpp.html#a86107594327f3a001230df9802cd4422" > operator delete< / a > (< span class = "keywordtype" > void< / span > *p)
< a name = "l00023" > < / a > 00023 {
< a name = "l00024" > < / a > 00024 < span class = "keywordflow" > if< / span > (p) free(p);
< a name = "l00025" > < / a > 00025 }
< a name = "l00026" > < / a > 00026
< a name = "l00027" > < / a > 00027 < span class = "preprocessor" > #if 0< / span >
< a name = "l00028" > < / a > 00028 < span class = "preprocessor" > < / span > < span class = "comment" > // We should never need this, as classes should never be defined< / span >
< a name = "l00029" > < / a > 00029 < span class = "comment" > // with pure virtual member functions< / span >
< a name = "l00030" > < / a > 00030 < span class = "keyword" > extern< / span > < span class = "stringliteral" > " C" < / span > < span class = "keywordtype" > void< / span > __cxa_pure_virtual()
< a name = "l00031" > < / a > 00031 {
< a name = "l00032" > < / a > 00032 < span class = "keywordflow" > while< / span > (1);
< a name = "l00033" > < / a > 00033 }
< a name = "l00034" > < / a > 00034 < span class = "preprocessor" > #endif< / span >
< a name = "l00035" > < / a > 00035 < span class = "preprocessor" > < / span >
< a name = "l00036" > < / a > < a class = "code" href = "c_09_09_8cpp.html#a63ce4f64887b9307317aee5baae6b18f" > 00036< / a > < span class = "keywordtype" > void< / span > * < a class = "code" href = "c_09_09_8cpp.html#a63ce4f64887b9307317aee5baae6b18f" > operator new[]< / a > (< span class = "keywordtype" > size_t< / span > size)
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< a name = "l00037" > < / a > 00037 {
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< a name = "l00038" > < / a > 00038 < span class = "preprocessor" > #ifdef AP_DISPLAYMEM< / span >
< a name = "l00039" > < / a > 00039 < span class = "preprocessor" > < / span > < a class = "code" href = "c_09_09_8cpp.html#a588befcce33478fd49d0caf32b362d15" > displayMemory< / a > ();
< a name = "l00040" > < / a > 00040 < span class = "preprocessor" > #endif< / span >
< a name = "l00041" > < / a > 00041 < span class = "preprocessor" > < / span > < span class = "keywordflow" > return< / span > (calloc(size, 1));
< a name = "l00042" > < / a > 00042 }
< a name = "l00043" > < / a > 00043
< a name = "l00044" > < / a > < a class = "code" href = "c_09_09_8cpp.html#a1d8b2d6f17242ae0d182b0f7a98ba54f" > 00044< / a > < span class = "keywordtype" > void< / span > < a class = "code" href = "c_09_09_8cpp.html#a1d8b2d6f17242ae0d182b0f7a98ba54f" > operator delete[]< / a > (< span class = "keywordtype" > void< / span > * ptr)
< a name = "l00045" > < / a > 00045 {
< a name = "l00046" > < / a > 00046 < span class = "keywordflow" > if< / span > (ptr) free(ptr);
< a name = "l00047" > < / a > 00047 }
< a name = "l00048" > < / a > 00048
< a name = "l00049" > < / a > 00049 __extension__ < span class = "keyword" > typedef< / span > < span class = "keywordtype" > int< / span > __guard < a class = "code" href = "c_09_09_8cpp.html#aa5aa60072f4063655d5283b6d7b7ab44" > __attribute__< / a > ((mode (__DI__)));
< a name = "l00050" > < / a > 00050
< a name = "l00051" > < / a > < a class = "code" href = "_a_p_m___perf_mon_8h.html#a239ddd7f6e7ee1b05b59b2e56d8afb40" > 00051< / a > < span class = "keywordtype" > int< / span > < a class = "code" href = "c_09_09_8cpp.html#ad9a42607fb7932f44ba914ac49972e62" > __cxa_guard_acquire< / a > (__guard *g)
< a name = "l00052" > < / a > 00052 {
< a name = "l00053" > < / a > 00053 < span class = "keywordflow" > return< / span > !*(< span class = "keywordtype" > char< / span > *)(g);
< a name = "l00054" > < / a > 00054 };
< a name = "l00055" > < / a > 00055
< a name = "l00056" > < / a > < a class = "code" href = "_a_p_m___perf_mon_8h.html#aab72c37f0b3e6fc38d293bd4f8dd61ed" > 00056< / a > < span class = "keywordtype" > void< / span > < a class = "code" href = "c_09_09_8cpp.html#adef76ddddaddf969efa3bfad968fd430" > __cxa_guard_release< / a > (__guard *g)
< a name = "l00057" > < / a > 00057 {
< a name = "l00058" > < / a > 00058 *(< span class = "keywordtype" > char< / span > *)g = 1;
< a name = "l00059" > < / a > 00059 };
< a name = "l00060" > < / a > 00060
< a name = "l00061" > < / a > < a class = "code" href = "_a_p_m___perf_mon_8h.html#a357afb2dc20a652447f3a529dbda60e4" > 00061< / a > < span class = "keywordtype" > void< / span > < a class = "code" href = "c_09_09_8cpp.html#a357afb2dc20a652447f3a529dbda60e4" > __cxa_guard_abort< / a > (__guard *) {};
< a name = "l00062" > < / a > 00062
< a name = "l00063" > < / a > 00063 < span class = "comment" > // free memory< / span >
< a name = "l00064" > < / a > 00064 < span class = "keyword" > extern< / span > < span class = "keywordtype" > unsigned< / span > < span class = "keywordtype" > int< / span > < a class = "code" href = "c_09_09_8cpp.html#aafe276f41c2f5f7f768823ae763da2cf" > __bss_end< / a > ;
< a name = "l00065" > < / a > 00065 < span class = "keyword" > extern< / span > < span class = "keywordtype" > void< / span > *< a class = "code" href = "c_09_09_8cpp.html#a8d18204366e8a385c441663ed41f1ae4" > __brkval< / a > ;
< a name = "l00066" > < / a > 00066
< a name = "l00067" > < / a > < a class = "code" href = "c_09_09_8h.html#a588befcce33478fd49d0caf32b362d15" > 00067< / a > < span class = "keywordtype" > void< / span > < a class = "code" href = "c_09_09_8cpp.html#a588befcce33478fd49d0caf32b362d15" > displayMemory< / a > ()
< a name = "l00068" > < / a > 00068 {
< a name = "l00069" > < / a > 00069 < span class = "keyword" > static< / span > < span class = "keywordtype" > int< / span > minMemFree=0;
< a name = "l00070" > < / a > 00070 < span class = "keywordflow" > if< / span > (minMemFree< =0 || < a class = "code" href = "c_09_09_8cpp.html#a8d862dc01c44bfabc8d952bb77f8da89" > freeMemory< / a > ()< minMemFree) {
< a name = "l00071" > < / a > 00071 minMemFree = < a class = "code" href = "c_09_09_8cpp.html#a8d862dc01c44bfabc8d952bb77f8da89" > freeMemory< / a > ();
< a name = "l00072" > < / a > 00072 < a class = "code" href = "_fast_serial_8h.html#a8e6f49b84135f0158fe250cb7338ddad" > Serial< / a > .print(< span class = "stringliteral" > " bytes free: " < / span > );
< a name = "l00073" > < / a > 00073 < a class = "code" href = "_fast_serial_8h.html#a8e6f49b84135f0158fe250cb7338ddad" > Serial< / a > .println(minMemFree);
< a name = "l00074" > < / a > 00074 }
< a name = "l00075" > < / a > 00075 }
< a name = "l00076" > < / a > 00076
< a name = "l00077" > < / a > < a class = "code" href = "c_09_09_8h.html#a8d862dc01c44bfabc8d952bb77f8da89" > 00077< / a > < span class = "keywordtype" > int< / span > < a class = "code" href = "c_09_09_8cpp.html#a8d862dc01c44bfabc8d952bb77f8da89" > freeMemory< / a > ()
< a name = "l00078" > < / a > 00078 {
< a name = "l00079" > < / a > 00079 < span class = "keywordtype" > int< / span > free_memory;
< a name = "l00080" > < / a > 00080
< a name = "l00081" > < / a > 00081 < span class = "keywordflow" > if< / span > ((< span class = "keywordtype" > int< / span > )__brkval == 0)
< a name = "l00082" > < / a > 00082 free_memory = ((int)& free_memory) - ((int)& __bss_end);
< a name = "l00083" > < / a > 00083 < span class = "keywordflow" > else< / span >
< a name = "l00084" > < / a > 00084 free_memory = ((int)& free_memory) - ((int)__brkval);
< a name = "l00085" > < / a > 00085
< a name = "l00086" > < / a > 00086 < span class = "keywordflow" > return< / span > free_memory;
< a name = "l00087" > < / a > 00087 }
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