/usr/include/NTL/matrix.h is in libntl-dev 5.5.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | #ifndef NTL_matrix__H
#define NTL_matrix__H
#include <NTL/tools.h>
#include <NTL/vector.h>
// matrix templates
#define NTL_matrix_decl(T,vec_T,vec_vec_T,mat_T) \
class mat_T { \
public: \
\
vec_vec_T _mat__rep; \
long _mat__numcols; \
\
\
mat_T() { _mat__numcols = 0; } \
mat_T(const mat_T& l__a); \
mat_T& operator=(const mat_T& l__a); \
~mat_T() { } \
\
mat_T(NTL_NNS INIT_SIZE_TYPE, long l__n, long l__m); \
\
void kill(); \
\
void SetDims(long l__n, long l__m); \
\
long NumRows() const { return _mat__rep.length(); } \
long NumCols() const { return _mat__numcols; } \
\
vec_T& operator[](long l__i) { return _mat__rep[l__i]; } \
const vec_T& operator[](long l__i) const { return _mat__rep[l__i]; } \
\
vec_T& operator()(long l__i) { return _mat__rep[l__i-1]; } \
const vec_T& operator()(long l__i) const { return _mat__rep[l__i-1]; } \
\
T& operator()(long l__i, long l__j) { return _mat__rep[l__i-1][l__j-1]; } \
const T& operator()(long l__i, long l__j) const \
{ return _mat__rep[l__i-1][l__j-1]; } \
\
\
\
long position(const vec_T& l__a) const { return _mat__rep.position(l__a); } \
long position1(const vec_T& l__a) const { return _mat__rep.position1(l__a); } \
mat_T(mat_T& l__x, NTL_NNS INIT_TRANS_TYPE) : \
_mat__rep(l__x._mat__rep, NTL_NNS INIT_TRANS), _mat__numcols(l__x._mat__numcols) { } \
}; \
\
inline const vec_vec_T& rep(const mat_T& l__a) \
{ return l__a._mat__rep; } \
\
void swap(mat_T& l__X, mat_T& l__Y); \
\
void MakeMatrix(mat_T& l__x, const vec_vec_T& l__a); \
#define NTL_eq_matrix_decl(T,vec_T,vec_vec_T,mat_T) \
long operator==(const mat_T& l__a, const mat_T& l__b); \
long operator!=(const mat_T& l__a, const mat_T& l__b); \
#define NTL_io_matrix_decl(T,vec_T,vec_vec_T,mat_T) \
NTL_SNS istream& operator>>(NTL_SNS istream&, mat_T&); \
NTL_SNS ostream& operator<<(NTL_SNS ostream&, const mat_T&); \
#define NTL_matrix_impl(T,vec_T,vec_vec_T,mat_T) \
mat_T::mat_T(const mat_T& l__a) \
{ \
_mat__numcols = 0; \
SetDims(l__a.NumRows(), l__a.NumCols()); \
_mat__rep = l__a._mat__rep; \
} \
\
mat_T& mat_T::operator=(const mat_T& l__a) \
{ \
SetDims(l__a.NumRows(), l__a.NumCols()); \
_mat__rep = l__a._mat__rep; \
return *this; \
} \
\
\
mat_T::mat_T(NTL_NNS INIT_SIZE_TYPE, long l__n, long l__m) \
{ \
_mat__numcols = 0; \
SetDims(l__n, l__m); \
} \
\
void mat_T::kill() \
{ \
_mat__numcols = 0; \
_mat__rep.kill(); \
} \
\
void mat_T::SetDims(long l__n, long l__m) \
{ \
if (l__n < 0 || l__m < 0) \
NTL_NNS Error("SetDims: bad args"); \
\
if (l__m != _mat__numcols) { \
_mat__rep.kill(); \
_mat__numcols = l__m; \
} \
\
long l__oldmax = _mat__rep.MaxLength(); \
long l__i; \
_mat__rep.SetLength(l__n); \
\
for (l__i = l__oldmax; l__i < l__n; l__i++) \
_mat__rep[l__i].FixLength(l__m); \
} \
\
\
void MakeMatrix(mat_T& l__x, const vec_vec_T& l__a) \
{ \
long l__n = l__a.length(); \
\
if (l__n == 0) { \
l__x.SetDims(0, 0); \
return; \
} \
\
long l__m = l__a[0].length(); \
long l__i; \
\
for (l__i = 1; l__i < l__n; l__i++) \
if (l__a[l__i].length() != l__m) \
NTL_NNS Error("nonrectangular matrix"); \
\
l__x.SetDims(l__n, l__m); \
for (l__i = 0; l__i < l__n; l__i++) \
l__x[l__i] = l__a[l__i]; \
} \
\
void swap(mat_T& l__X, mat_T& l__Y) \
{ \
NTL_NNS swap(l__X._mat__numcols, l__Y._mat__numcols); \
swap(l__X._mat__rep, l__Y._mat__rep); \
} \
\
#define NTL_eq_matrix_impl(T,vec_T,vec_vec_T,mat_T) \
long operator==(const mat_T& l__a, const mat_T& l__b) \
{ \
if (l__a.NumCols() != l__b.NumCols()) \
return 0; \
\
if (l__a.NumRows() != l__b.NumRows()) \
return 0; \
\
long l__n = l__a.NumRows(); \
long l__i; \
\
for (l__i = 0; l__i < l__n; l__i++) \
if (l__a[l__i] != l__b[l__i]) \
return 0; \
\
return 1; \
} \
\
\
long operator!=(const mat_T& l__a, const mat_T& l__b) \
{ \
return !(l__a == l__b); \
} \
#define NTL_io_matrix_impl(T,vec_T,vec_vec_T,mat_T) \
NTL_SNS istream& operator>>(NTL_SNS istream& l__s, mat_T& l__x) \
{ \
vec_vec_T l__buf; \
l__s >> l__buf; \
MakeMatrix(l__x, l__buf); \
return l__s; \
} \
\
NTL_SNS ostream& operator<<(NTL_SNS ostream& l__s, const mat_T& l__a) \
{ \
long l__n = l__a.NumRows(); \
long l__i; \
l__s << "["; \
for (l__i = 0; l__i < l__n; l__i++) { \
l__s << l__a[l__i]; \
l__s << "\n"; \
} \
l__s << "]"; \
return l__s; \
} \
#endif
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