diff options
author | 2015-10-20 21:34:36 +0200 | |
---|---|---|
committer | 2015-10-20 21:34:36 +0200 | |
commit | a7b8acbe3eebcf17367baa642375cfa47ae4ea85 (patch) | |
tree | 854b859d6176802c0278f4b00de3f7c774e02dda /src/lib/netlist/solver/vector_base.h | |
parent | 4610935e796661874bb4ee7ec6536d9423aeb7be (diff) | |
parent | 74aae76c4e3e257f99d139c4febb5d86d1419e50 (diff) |
Merge pull request #6 from mamedev/master
Sync to base master
Diffstat (limited to 'src/lib/netlist/solver/vector_base.h')
-rw-r--r-- | src/lib/netlist/solver/vector_base.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/lib/netlist/solver/vector_base.h b/src/lib/netlist/solver/vector_base.h new file mode 100644 index 00000000000..c1449aad595 --- /dev/null +++ b/src/lib/netlist/solver/vector_base.h @@ -0,0 +1,114 @@ +// license:GPL-2.0+ +// copyright-holders:Couriersud +/* + * vector_base.h + * + * Base vector operations + * + */ + +#ifndef VECTOR_BASE_H_ +#define VECTOR_BASE_H_ + +#include <algorithm> +#include "plib/pconfig.h" + +#if 0 +template <unsigned _storage_N> +struct pvector +{ + pvector(unsigned size) + : m_N(size) { } + + unsigned size() { + if (_storage_N) + } + + double m_V[_storage_N]; +private: + unsigned m_N; +}; +#endif + +#if !defined(__clang__) && !defined(_MSC_VER) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + +template<typename T> +inline void vec_set (const std::size_t n, const T &scalar, T * RESTRICT result) +{ + for ( std::size_t i = 0; i < n; i++ ) + result[i] = scalar; +} + +template<typename T> +inline T vecmult (const std::size_t n, const T * RESTRICT a1, const T * RESTRICT a2 ) +{ + T value = 0.0; + for ( std::size_t i = 0; i < n; i++ ) + value = value + a1[i] * a2[i]; + return value; +} + +template<typename T> +inline T vecmult2 (const std::size_t n, const T *a1) +{ + T value = 0.0; + for ( std::size_t i = 0; i < n; i++ ) + { + const T temp = a1[i]; + value = value + temp * temp; + } + return value; +} + +template<typename T> +inline void vec_mult_scalar (const std::size_t n, const T * RESTRICT v, const T scalar, T * RESTRICT result) +{ + for ( std::size_t i = 0; i < n; i++ ) + { + result[i] = scalar * v[i]; + } +} + +template<typename T> +inline void vec_add_mult_scalar (const std::size_t n, const T * RESTRICT v, const T scalar, T * RESTRICT result) +{ + for ( std::size_t i = 0; i < n; i++ ) + result[i] += scalar * v[i]; +} + +inline void vec_add_ip(const std::size_t n, const double * RESTRICT v, double * RESTRICT result) +{ + for ( std::size_t i = 0; i < n; i++ ) + result[i] += v[i]; +} + +template<typename T> +inline void vec_sub(const std::size_t n, const T * RESTRICT v1, const T * RESTRICT v2, T * RESTRICT result) +{ + for ( std::size_t i = 0; i < n; i++ ) + result[i] = v1[i] - v2[i]; +} + +template<typename T> +inline void vec_scale (const std::size_t n, T * RESTRICT v, const T scalar) +{ + for ( std::size_t i = 0; i < n; i++ ) + v[i] = scalar * v[i]; +} + +inline double vec_maxabs(const std::size_t n, const double * RESTRICT v) +{ + double ret = 0.0; + for ( std::size_t i = 0; i < n; i++ ) + ret = std::max(ret, std::abs(v[i])); + + return ret; +} +#if !defined(__clang__) && !defined(_MSC_VER) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)) +#pragma GCC diagnostic pop +#endif + +#endif /* MAT_CR_H_ */ |