FastLED
3.9.15
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math_macros.h
Go to the documentation of this file.
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#pragma once
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namespace
fl
{
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// This is needed for math macro ABS to work optimally.
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template
<
typename
T>
inline
T
fl_abs
(T value) {
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return
value < 0 ? -value : value;
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}
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}
// namespace fl
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#ifndef MAX
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#endif
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#ifndef MIN
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#endif
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#ifndef ABS
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#define ABS(x) fl::fl_abs(x)
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#endif
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#ifndef EPSILON_F
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// smallest possible float
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#define EPSILON_F 1.19209290e-07F
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#endif
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#ifndef EPSILON_D
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// smallest possible double
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#define EPSILON_D 2.2204460492503131e-16
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#endif
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#ifndef ALMOST_EQUAL
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#define ALMOST_EQUAL(a, b, small) (ABS((a) - (b)) < small)
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#endif
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#ifndef ALMOST_EQUAL_FLOAT
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#define ALMOST_EQUAL_FLOAT(a, b) (ABS((a) - (b)) < EPSILON_F)
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#endif
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#ifndef ALMOST_EQUAL_DOUBLE
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#define ALMOST_EQUAL_DOUBLE(a, b) (ABS((a) - (b)) < EPSILON_F)
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#endif
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#ifndef INFINITY_DOUBLE
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#define INFINITY_DOUBLE (1.0 / 0.0)
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#endif
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#ifndef INFINITY_FLOAT
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#define INFINITY_FLOAT (1.0f / 0.0f)
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#endif
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#ifndef FLT_MAX
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#define FLT_MAX 3.402823466e+38F
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#endif
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#ifndef PI
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#define PI 3.1415926535897932384626433832795
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#endif
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#ifndef M_PI
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#define M_PI PI
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#endif
fl::fl_abs
T fl_abs(T value)
Definition
math_macros.h:5
fl
Implements a simple red square effect for 2D LED grids.
Definition
crgb.h:16
fl
math_macros.h
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