93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
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/// @ref ext_scalar_integer
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/// @file glm/ext/scalar_integer.hpp
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///
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/// @see core (dependence)
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///
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/// @defgroup ext_scalar_integer GLM_EXT_scalar_integer
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/// @ingroup ext
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///
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/// Include <glm/ext/scalar_integer.hpp> to use the features of this extension.
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#pragma once
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// Dependencies
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#include "../detail/setup.hpp"
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#include "../detail/qualifier.hpp"
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#include "../detail/_vectorize.hpp"
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#include "../detail/type_float.hpp"
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#include "../vector_relational.hpp"
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#include "../common.hpp"
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#include <limits>
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#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_EXT_scalar_integer extension included")
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#endif
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namespace glm
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{
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/// @addtogroup ext_scalar_integer
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/// @{
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/// Return true if the value is a power of two number.
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL bool isPowerOfTwo(genIUType v);
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/// Return the power of two number which value is just higher the input value,
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/// round up to a power of two.
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL genIUType nextPowerOfTwo(genIUType v);
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/// Return the power of two number which value is just lower the input value,
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/// round down to a power of two.
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL genIUType prevPowerOfTwo(genIUType v);
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/// Return true if the 'Value' is a multiple of 'Multiple'.
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL bool isMultiple(genIUType v, genIUType Multiple);
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/// Higher multiple number of Source.
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///
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/// @tparam genIUType Integer scalar or vector types.
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///
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/// @param v Source value to which is applied the function
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/// @param Multiple Must be a null or positive value
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL genIUType nextMultiple(genIUType v, genIUType Multiple);
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/// Lower multiple number of Source.
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///
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/// @tparam genIUType Integer scalar or vector types.
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///
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/// @param v Source value to which is applied the function
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/// @param Multiple Must be a null or positive value
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL genIUType prevMultiple(genIUType v, genIUType Multiple);
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/// Returns the bit number of the Nth significant bit set to
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/// 1 in the binary representation of value.
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/// If value bitcount is less than the Nth significant bit, -1 will be returned.
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///
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/// @tparam genIUType Signed or unsigned integer scalar types.
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///
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/// @see ext_scalar_integer
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template<typename genIUType>
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GLM_FUNC_DECL int findNSB(genIUType x, int significantBitCount);
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/// @}
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} //namespace glm
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#include "scalar_integer.inl"
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