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29 lines
572 B
29 lines
572 B
#include <clc/clc.h>
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#include "../clcmacro.h"
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#define SIGN(TYPE, F) \
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_CLC_DEF _CLC_OVERLOAD TYPE sign(TYPE x) { \
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if (isnan(x)) { \
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return 0.0F; \
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} \
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if (x > 0.0F) { \
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return 1.0F; \
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} \
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if (x < 0.0F) { \
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return -1.0F; \
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} \
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return x; /* -0.0 or +0.0 */ \
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}
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SIGN(float, f)
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_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, sign, float)
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#ifdef cl_khr_fp64
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#pragma OPENCL EXTENSION cl_khr_fp64 : enable
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SIGN(double, )
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_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, sign, double)
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#endif
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