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Improve Arduino compatibility with the STL (min and max macro) #399

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Improve Arduino compatibility with the STL (min and max macro) #399

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7402c91
Improve Arduino compatibility with the STL
prototypicalpro Apr 10, 2019
5800fce
Apply suggestions from code review
per1234 Apr 11, 2019
3991f0a
Replaced `using` declarations with custom implementation
prototypicalpro Apr 11, 2019
5460bde
Fix License typos
prototypicalpro Apr 11, 2019
ab462d9
Fixed typo in decltype specifier
prototypicalpro Jul 30, 2019
c92a52d
Remove extra include
prototypicalpro Aug 9, 2019
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17 changes: 16 additions & 1 deletion cores/arduino/Arduino.h
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,7 @@ void loop( void ) ;
#include "wiring_shift.h"
#include "WInterrupts.h"

#ifndef __cplusplus
// undefine stdlib's abs if encountered
#ifdef abs
#undef abs
Expand All @@ -100,8 +101,22 @@ void loop( void ) ;
#define min(a,b) ((a)<(b)?(a):(b))
#define max(a,b) ((a)>(b)?(a):(b))
#define abs(x) ((x)>0?(x):-(x))
#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
#define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
#else
template<class T, class L>
auto min(const T& a, const L& b) -> decltype((b < a) ? b : a)
{
return (b < a) ? b : a;
}

template<class T, class L>
auto max(const T& a, const L& b) -> decltype((a < b) ? b : a)
{
return (a < b) ? b : a;
}
#endif

#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
#define radians(deg) ((deg)*DEG_TO_RAD)
#define degrees(rad) ((rad)*RAD_TO_DEG)
#define sq(x) ((x)*(x))
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