Changelog

0.21.10

  • Document chunked arrays #2102
  • Removed zarray files #2221
  • Improved xeval #2223
  • Fixed various warnings #2224

0.21.9

  • Adding macro XTENSOR_SELECT_ALIGN #2152
  • xcontainer.hpp: Renamed a shadowing type name inside a function #2208
  • Add chunk_memory_layout to chunked_array factory #2211
  • CMake: Modernized GTest-integration #2212
  • xnpy.hpp: fix multiple definition of ‘host_endian_char’ variable when included in different linked objects #2214
  • Made global variable const to force internal linkage #2216
  • Use xtl::endianness instead of bundling it #2218
  • Fix call to resize of chunk container #2219

0.21.8

  • Fix undefined behavior while testing shifts #2175
  • Fix zarray initialization from zarray #2180
  • Portable and generic implementation of endianess detection #2182
  • Fix xnpy save padding computation #2183
  • Only use -march=native if it’s available #2184
  • Fix xchunked_array assignment #2177
  • Add specific xchunked_array constructor for xchunk_store_manager #2188
  • Make xnpy tests aware of both little and big endian targets #2189
  • Fixed constructors of xchunked_array #2190
  • First implementation of zchunked_wrapper #2193
  • Don’t mark dirty a resized or reshaped xfile_array #2194
  • Replaced catch-all constructor of zarray with more restrictive ones #2195
  • Fixed SFINAE based on xchunked_store_manager #2197
  • Fix generated cmake config to include missing required lib #2200
  • Add set_chunk_shape to the first chunk of the pool #2198
  • Chunked array refactoring #2201
  • Refactored xchunked_array semantic #2202
  • Added missing header to CMakeLists.txt #2203
  • Fixed load_simd for xcomplex #2204
  • Upgraded to xtl 0.6.20 #2206
  • changed std traits to new xtl::xtraits #2205
  • xstorage.hpp: Renamed a shadowing variable inside a function #2207

0.21.7

  • Removed zheaders from single header #2157
  • Implemented insertion of range and intializer list in svector #2165
  • Adding has_shape #2163
  • Adding get_rank and has_fixed_rank #2162
  • Zrefactoring #2140
  • Added missing header #2169
  • Extending docs random #2173

0.21.6

  • Added implementation of isin and in1d #2021
  • Wrote single include header #2031
  • Added details for xt::random to docs #2043
  • Added digitize, searchsorted, and bin_items #2037
  • Fixed error with zero tensor size in xt::mean #2047
  • Fixed initialization order in xfunction #2050
  • adapt_smart_ptr overloads now accept STL-like container as shape #2052
  • Added xchunked_array #2076
  • xchunked_array inherits from xiterable #2082
  • xchunked_array inherits from xcontainer_semantic #2083
  • Fixed assignment operator of xchunked_array #2084
  • Added constructors from xexpression and chunk_shape to xchunked_array #2087
  • Fixed chunk layout #2091
  • Copy constructor gets expression’s chunk_shape if it is chunked #2092
  • Replaced template parameter chunk_type with chunk_storage #2095
  • Implemented on-disk chunked array #2096
  • Implemented chunk pool in xchunk_store_manager #2099
  • xfile_array is now an expression #2107
  • xchunked_array code cleanup #2109
  • xchunked_store_manager code cleanup #2110
  • Refactored xfile_array #2117
  • Added simd accessors to xfil_array_container #2118
  • Abstracted file format through a formal class #2115
  • Added xchunked_array extension template #2122
  • Refactored xdisk_io_handler #2123
  • Fixed exception for file write operation #2125
  • Implemented zarray #2127
  • Implemented the skeleton of the dynamic expression system #2129
  • Implemented zfunctions, equivalent of xfunction for dynamic expression system #2130
  • Implemented allocate_result in zfunction #2132
  • Implemented assign mechanism for zarray #2133
  • Added xindex_path to transform indexes into path #2131
  • Fixing various compiler warnings #2145
  • Removed conversion and initialization warnings #2141

0.21.5

  • Fix segfault when using xt::drop on an empty list of indices #1990
  • Implemented missing methods in xrepeat class #1993
  • Added extension base to xrepeat and clean up xbroadcast #1994
  • Fix return type of nanmean and add unittest #1996
  • Add result type template argument for stddev, variance, nanstd and nanvar #1999
  • Fix variance overload #2002
  • Added missing xaxis_slice_iterator header to CMakeLists.txt #2009
  • Fixed xview on const keep and const drop slices #2010
  • Added static_assert to adapt methods #2015
  • Removed allocator deprecated calls #2018
  • Added missing overload of push_back to svector #2024
  • Initialized all members of xfunciton_cache_impl #2026

0.21.4

  • Fix warning -Wsign-conversion in xview #1902
  • Fixed issue due to thread_local storage on some architectures #1905
  • benchmark/CMakeLists.txt: fixed a tiny spelling mistake #1904
  • nd-iterator implementation #1891
  • Add GoatCounter analytics for the documentation #1908
  • Added noexcept in svector #1919
  • Add implementation of repeat (similar to numpy) #1896
  • Fix initialization of out shape in xt::tile #1923
  • xaxis_slice_iterator – Iterates over 1D slices oriented along the specified axis #1916
  • Fixed cxx11 lib guard #1925
  • Fixed CXX11 ABI when _GLIBCXX_USE_DUAL_ABI is set to 0 #1927
  • Enabling array-bounds warning #1933
  • Fixed warnings #1934
  • Compile with g++ instead of gcc, clarify include directories #1938
  • broadcast function now accepts fixed shapes #1939
  • Don’t print decimal point after inf or nan #1940
  • Improved performance of xt::tile #1943
  • Refactoring CI #1942
  • Documentation build: Switched to channel QuantStack #1948
  • Removed warnings due to gtest upgrade #1949
  • Fixed flatten view of view #1950
  • Improved narrative documentation of reducers #1958
  • Add test for printing xarray of type size_t #1947
  • Added documentation for iterators #1961
  • Fixed check_element_index behavior for 0-D expressions #1965
  • Fixed element method of xreducer #1966
  • Fixed cast for third-party types #1967
  • fix xoperation #1790
  • Added installation instruction with MinGW #1969
  • xrepeat now stores const_xclosure_t<E> instead of E #1968
  • Fixed argpartition leading axis test #1971
  • Added tests with C++20 enabled #1974
  • Added documentation for repeat #1975
  • Fixed sort and partition #1976
  • xt::view now supports negative indices #1979

0.21.3

  • Allow use of cmake add_subdirectory(xtensor) by checking for xtl target #1865
  • Simplifying CMake config #1856
  • Fixed reshape with signed integers #1867
  • Disabled MSVC iterator checks #1874
  • Added covariance function #1847
  • Fix for older cmake #1880
  • Added row and col facade for 2-D contianers #1876
  • Implementation of xt::tile #1888
  • Fixed reshape return #1886
  • Enabled add_subdirectory for xsimd #1889
  • Support ddof argument for xt::variance #1893
  • Set -march=native only if the user did not set another -march already #1899
  • Assemble new container in xpad #1808

0.21.2

  • Upgraded to gtest 1.10.0 #1859
  • Upgraded to xsimd 7.4.4 #1864
  • Removed allocator deprecated calls #1862

0.21.1

  • Added circular includes check #1853
  • Removed cricular dependencies #1854

0.21.0

Breaking changes

  • Dynamic SIMD assign #1762

Other changes

  • Updated links to other projects #1773
  • Updated license #1774
  • Updated related projects #1775
  • Fixed has_simd_interface for non existing simd_return_type #1779
  • Added average overload for default equal weights #1789
  • Implemented concatenation of fixed_shape tensors #1793
  • Replaced new with unique_ptr in headers #1800
  • Fixed reallocation when an xbuffer is copied over #1799
  • Added hte ability to use the library with -fnoexception #1801
  • Minor efficiency improvement #1807
  • Unified xt::concatenate and xt::concatenate_fixed #1805
  • Have reshape method return a reference to self #1813
  • Enabling tests of xtensor_fixed on Windows with clang. #1815
  • Disabled SIMD assignment when bool conversion occurs #1818
  • Speed up views, added SIMD interface to strided views #1627
  • Fixed assignment of scalar to complex #1828
  • Fixed concurrency issue in flat_expression_adaptor #1831
  • Implemented an equivalent to numpy.roll #1823
  • Upgraded to xtl 0.6.9 #1839
  • Fixed type of OpenMP’s index variable on Windows #1838
  • Implemented hstack and vstack #1841
  • Implemented hsplit and vsplit #1842
  • Fixed behavior of diff when n is greater thant the number of elements #1843
  • Added treshold to OpenMP parallelization #1849
  • Added missing assign operator in xmasked_view #1850
  • Updated CMake target #1851

0.20.10

  • Simplified functors definition #1756
  • Fixed container_simd_return_type #1759
  • Fixed reducer init for xtensor_fixed value type #1761

0.20.9

  • Added alias to check if type is xsemantic_base #1673
  • Added missing include xoperation.hpp #1674
  • Moved XSIMD and TBB dependencies to tests only #1676
  • Added missing coma #1680
  • Added Numpy-like parameter in load_csv #1682
  • Added shape() method to xshape.hpp #1592
  • Added shape print tip to docs #1693
  • Fix lvalue npy_file heap corruption in MSVC #1697
  • Fix UB when parsing 1-dimension npy #1696
  • Fixed compiler error (missing shape method in xbroadcast and xscalar) #1699
  • Added: deg2rad, rad2deg, degrees, radians #1700
  • Despecialized xt::to_json and xt::from_json #1691
  • Added coverity #1577
  • Additional configuration for future coverity branch #1712
  • More tests for coverity #1714
  • Update README.md for Conan installation instructions #1717
  • Reset stream’s flags after output operation #1718
  • Added missing include in xview.hpp #1719
  • Removed usage of allocator’s members that are deprecated in C++17 #1720
  • Added tests for mixed assignment #1721
  • Fixed step_simd when underlying iterator holds an xscalar_stepper #1724
  • Fixed accumulator for empty arrays #1725
  • Use temporary_type in implementation of xt::diff #1727
  • CMakeLists.txt: bumped up xsimd required version to 7.2.6 #1728
  • Fixed reducers on empty arrays #1729
  • Implemented additional random distributions #1708
  • Fixed reducers: passing the same axis many times now throws #1730
  • Made xfixed_container optionally sharable #1733
  • step_simd template parameter is now the value type instead of the simd type #1736
  • Implemented OpenMP Parallelization. #1739
  • Readme improvements #1741
  • Vectorized xt::where #1738
  • Fix typos and wording in documentation #1745
  • Upgraded to xtl 0.6.6. and xsimd 7.4.0 #1747
  • Improve return value type for nanmean #1749
  • Allows (de)serialization of xexpressions in NumPy formatted strings and streams #1751
  • Enabled vectorization of boolean operations #1748
  • Added the list of contributors #1755

0.20.8

  • Added traversal order to argwhere and filter #1672
  • flatten now returns the new type xtensor_view #1671
  • Error case handling in concatenate #1669
  • Added assign operator from temporary_type in xiterator_adaptor #1668
  • Improved index_view examples #1667
  • Updated build option section of the documentation #1666
  • Made xsequence_view convertible to arbitrary sequence type providing iterators #1657
  • Added overload of is_linear for expressions without strides method #1655
  • Fixed reverse arange #1653
  • Add warnings for random number generation #1652
  • Added common pitfalls section in the documentation #1649
  • Added missing shape overload in xfunction #1650
  • Made xconst_accessible::shape(std::size_t) visible in xview #1645
  • Diff: added bounds-check on maximal recursion #1640
  • Add xframe to related projects #1635
  • Update indice.rst #1626
  • Remove unecessary arguments #1624
  • Replace auto with explicit return type in make_xshared #1621
  • Add z5 to related projects #1620
  • Fixed long double complex offset views #1614
  • Fixed xpad bugs #1607
  • Workaround for annoying bug in VS2017 #1602

0.20.7

  • Fix reshape view assignment and allow setting traversal order #1598

0.20.6

  • Added XTENSOR_DEFAULT_ALIGNMENT macro #1597
  • Added missing comparison operators for const_array #1596
  • Fixed reducer for expression with shape containing 0 #1595
  • Very minor spelling checks in comments #1591
  • tests can be built in debug mode #1589
  • strided views constructors forward shape argument #1587
  • Remove unused type alias #1585
  • Fixed reducers with empty list of axes #1582
  • Fix typo in builder docs #1581
  • Fixed return type of data in xstrided_view #1580
  • Fixed reducers on expression with shape containing 1 as first elements #1579
  • Fixed xview::element for range with more elements than view’s dimension #1578
  • Fixed broadcasting of shape containing 0-sized dimensions #1575
  • Fixed norm return type for complex #1574
  • Fixed iterator incremented or decremented by 0 #1572
  • Added complex exponential test #1571
  • Strided views refactoring #1569
  • Add clang-cl support #1559

0.20.5

  • Fixed conj #1556
  • Fixed real, imag, and functor_view #1554
  • Allows to include xsimd without defining XTENSOR_USE_XSIMD #1548
  • Fixed argsort in column major #1547
  • Fixed assign_to for arange on double #1541
  • Fix example code in container.rst #1544
  • Removed return value from step_leading #1536
  • Bugfix: amax #1533
  • Removed extra ; #1527

0.20.4

  • Buffer adaptor default constructor #1524

0.20.3

  • Fix xbuffer adaptor #1523

0.20.2

  • Fixed broadcast linear assign #1493
  • Fixed do_stirdes_match #1497
  • Removed unused capture #1499
  • Upgraded to xtl 0.6.2 #1502
  • Added missing methods in xshared_expression #1503
  • Fixed iterator types of xcontainer #1504
  • Typo correction in external-structure.rst #1505
  • Added extension base to adaptors #1507
  • Fixed shared expression iterator methods #1509
  • Strided view fixes #1512
  • Improved range documentation #1515
  • Fixed ravel and flatten implementation #1511
  • Fixed xfixed_adaptor temporary assign #1516
  • Changed struct -> class in xiterator_adaptor #1513
  • Fxed argmax for expressions with strides 0 #1519
  • Add has_linear_assign to sdynamic_view #1520

0.20.1

  • Add a test for mimetype rendering and fix forward declaration #1490
  • Fix special case of view iteration #1491

0.20.0

Breaking changes

  • Removed xmasked_value and promote_type_t #1389
  • Removed deprecated type slice_vector #1459
  • Upgraded to xtl 0.6.1 #1468
  • Added keep_dims option to reducers #1474
  • do_strides_match now accept an addition base stride value #1479

Other changes

  • Add partition, argpartition and median #991
  • Fix tets on avx512 #1410
  • Implemented xcommon_tensor_t with tests #1412
  • Code reorganization #1416
  • reshape now accepts initializer_list parameter #1417
  • Improved documentation #1419
  • Fixed noexcept specifier #1418
  • view now accepts lvalue slices #1420
  • Removed warnings #1422
  • Added reshape member to xgenerator to make arange more flexible #1421
  • Add std::decay_t to shape_type in strided view #1425
  • Generic reshape for xgenerator #1426
  • Fix out of bounds accessing in xview::compute_strides #1437
  • Added quick reference section to documentation #1438
  • Improved getting started CMakeLists.txt #1440
  • Added periodic indices #1430
  • Added build section to narrative documentation #1442
  • Fixed linspace corner case #1443
  • Fixed type-o in documentation #1446
  • Added xt::xpad #1441
  • Added warning in resize documentation #1447
  • Added in_bounds method #1444
  • xstrided_view_base is now a CRTP base class #1453
  • Turned xfunctor_applier_base into a CRTP base class #1455
  • Removed out of bound access in data_offset #1456
  • Added xaccessible base class #1451
  • Refactored operator[] #1460
  • Splitted xaccessible #1461
  • Refactored size #1462
  • Implemented nanvar and nanstd with tests #1424
  • Removed warnings #1463
  • Added periodic and in_bounds method to xoptional_assembly_base #1464
  • Updated documentation according to last changes #1465
  • Fixed flatten_sort_result_type #1470
  • Fixed unique with expressions not defining temporary_type #1472
  • Fixed xstrided_view_base constructor #1473
  • Avoid signed integer overflow in integer printer #1475
  • Fixed xview::inner_backstrides_type #1480
  • Fixed compiler warnings #1481
  • slice_implementation_getter now forwards its lice argument #1486
  • linspace can now be reshaped #1488

0.19.4

  • Add missing include #1391
  • Fixes in xfunctor_view #1393
  • Add tests for xfunctor_view #1395
  • Add empty method to fixed_shape #1396
  • Add accessors to slice members #1401
  • Allow adaptors on shared pointers #1218
  • Fix eye with negative index #1406
  • Add documentation for shared pointer adaptor #1407
  • Add nanmean function #1408

0.19.3

  • Fix arange #1361.
  • Adaptors for C stack-allocated arrays #1363.
  • Add support for optionals in conditional_ternary #1365.
  • Add tests for ternary operator on xoptionals #1368.
  • Enable ternary operation for a mix of xoptional<value> and value #1370.
  • reduce now accepts a single reduction function #1371.
  • Implemented share method #1372.
  • Documentation of shared improved #1373.
  • make_lambda_xfunction more generic #1374.
  • minimum/maximum for xoptional #1378.
  • Added missing methods in uvector and svector #1379.
  • Clip xoptional_assembly #1380.
  • Improve gtest cmake #1382.
  • Implement ternary operator for scalars #1385.
  • Added missing at method in uvector and svector #1386.
  • Fixup binder environment #1387.
  • Fixed resize and swap of svector #1388.

0.19.2

  • Enable CI for C++17 #1324.
  • Fix assignment of masked views #1328.
  • Set CMAKE_CXX_STANDARD instead of CMAKE_CXX_FLAGS #1330.
  • Allow specifying traversal order to argmin and argmax #1331.
  • Update section on differences with NumPy #1336.
  • Fix accumulators for shapes containing 1 #1337.
  • Decouple XTENSOR_DEFAULT_LAYOUT and XTENSOR_DEFAULT_TRAVERSAL #1339.
  • Prevent embiguity with xsimd::reduce #1343.
  • Require xtl 0.5.3 #1346.
  • Use concepts instead of SFINAE #1347.
  • Document good practice for xtensor-based API design #1348.
  • Fix rich display of tensor expressions #1353.
  • Fix xview on fixed tensor #1354.
  • Fix issue with keep_slice in case of dynamic_view on view #1355.
  • Prevent installation of gtest artifacts #1357.

0.19.1

  • Add string specialization to lexical_cast #1281.
  • Added HDF5 reference for xtensor-io #1284.
  • Fixed view index remap issue #1288.
  • Fixed gcc 8.2 deleted functions #1289.
  • Fixed reducer for 0d input #1292.
  • Fixed check_element_index #1295.
  • Added comparison functions #1297.
  • Add some tests to ensure chrono works with xexpressions #1272.
  • Refactor functor_view #1276.
  • Documentation improved #1302.
  • Implementation of shift operators #1304.
  • Make functor adaptor stepper work for proxy specializations #1305.
  • Replaced auto& with auto&& in assign_to #1306.
  • Fix namespace in xview_utils.hpp #1308.
  • Introducing flatten_indices and unravel_indices #1300.
  • Default layout parameter for ravel #1311.
  • Fixed xvie_stepper #1317.
  • Fixed assignment of view on view #1314.
  • Documented indices #1318.
  • Fixed shift operators return type #1319.

0.19.0

Breaking changes

  • Upgraded to xtl 0.5 #1275.

Other changes

  • Removed type-o in docs, minor code style consistency update #1255.
  • Removed most of the warnings #1261.
  • Optional bitwise fixed #1263.
  • Prevent macro expansion in std::max #1265.
  • Update numpy.rst #1267.
  • Update getting_started.rst #1268.
  • keep and drop step_size fixed #1270.
  • Fixed typo in xadapt #1277.
  • Fixed typo #1278.

0.18.3

  • Exporting optional dependencies #1253.
  • 0-D HTML rendering #1252.
  • Include nlohmann_json in xio for mime bundle repr #1251.
  • Fixup xview scalar assignment #1250.
  • Implemented from_indices #1240.
  • xtensor_forward.hpp cleanup #1243.
  • default layout-type for unravel_from_strides and unravel_index #1239.
  • xfunction iterator fix #1241.
  • xstepper fixes #1237.
  • print_options io manipulators #1231.
  • Add syntactic sugar for reducer on single axis #1228.
  • Added view vs. adapt benchmark #1229.
  • added precisions to the installation instructions #1226.
  • removed data interface from dynamic view #1225.
  • add xio docs #1223.
  • Fixup xview assignment #1216.
  • documentation updated to be consistent with last changes #1214.
  • prevents macro expansion of std::max #1213.
  • Fix minor typos #1212.
  • Added missing assign operator in xstrided_view #1210.
  • argmax on axis with single element fixed #1209.

0.18.2

  • expression tag system fixed #1207.
  • optional extension for generator #1206.
  • optional extension for xview #1205.
  • optional extension for xstrided_view #1204.
  • optional extension for reducer #1203.
  • optional extension for xindex_view #1202.
  • optional extension for xfunctor_view #1201.
  • optional extension for broadcast #1198.
  • extension API and code cleanup #1197.
  • xscalar optional refactoring #1196.
  • Extension mechanism #1192.
  • Many small fixes #1191.
  • Slight refactoring in step_size logic #1188.
  • Fixup call of const overload in assembly storage #1187.

0.18.1

  • Fixup xio forward declaration #1185.

0.18.0

Breaking changes

  • Assign and trivial_broadcast refactoring #1150.
  • Moved array manipulation functions (transpose, ravel, flatten, trim_zeros, squeeze, expand_dims, split, atleast_Nd, atleast_1d, atleast_2d, atleast_3d, flip) from xstrided_view.hpp to xmanipulation.hpp #1153.
  • iterator API improved #1155.
  • Fixed where and nonzero function behavior to mimic the behavior from NumPy #1157.
  • xsimd and functor refactoring #1173.

New features

  • Implement rot90 #1153.
  • Implement argwhere and flatnonzero #1157.
  • Implemented xexpression_holder #1164.

Other changes

  • Warnings removed #1159.
  • Added missing include #1162.
  • Removed unused type alias in xmath/average #1163.
  • Slices improved #1168.
  • Fixed xdrop_slice #1181.

0.17.4

  • perfect forwarding in xoptional_function constructor #1101.
  • fix issue with base_simd #1103.
  • XTENSOR_ASSERT fixed on Windows #1104.
  • Implement xmasked_value #1032.
  • Added setdiff1d using stl interface #1109.
  • Added test case for setdiff1d #1110.
  • Added missing reference to diff in From numpy to xtensor section #1116.
  • Add amax and amin to the documentation #1121.
  • histogram and histogram_bin_edges implementation #1108.
  • Added numpy comparison for interp #1111.
  • Allow multiple return type reducer functions #1113.
  • Fixes average bug + adds Numpy based tests #1118.
  • Static xfunction cache for fixed sizes #1105.
  • Add negative reshaping axis #1120.
  • Updated xmasked_view using xmasked_value #1074.
  • Clean documentation for views #1131.
  • Build with xsimd on Windows fixed #1127.
  • Implement mime_bundle_repr for xmasked_view #1132.
  • Modify shuffle to use identical algorithms for any number of dimensions #1135.
  • Warnings removal on windows #1139.
  • Add permutation function to random #1141.
  • xfunction_iterator permutation #933.
  • Add bincount to xhistogram #1140.
  • Add contiguous iterable base class and remove layout param from storage iterator #1057.
  • Add storage_iterator to view and strided view #1045.
  • Removes data_element from xoptional #1137.
  • xtensor default constructor and scalar assign fixed #1148.
  • Add resize / reshape to xfixed_container #1147.
  • Iterable refactoring #1149.
  • inner_strides_type imported in xstrided_view #1151.

0.17.3

  • xslice fix #1099.
  • added missing static_layout in xmasked_view #1100.

0.17.2

  • Add experimental TBB support for parallelized multicore assign #948.
  • Add inline statement to all functions in xnpy #1097.
  • Fix strided assign for certain assignments #1095.
  • CMake, remove gtest warnings #1085.
  • Add conversion operators to slices #1093.
  • Add optimization to unchecked accessors when contiguous layout is known #1060.
  • Speedup assign by computing any layout on vectors #1063.
  • Skip resizing for fixed shapes #1072.
  • Add xsimd apply to xcomplex functors (conj, norm, arg) #1086.
  • Propagate contiguous layout through views #1039.
  • Fix C++17 ambiguity for GCC 7 #1081.
  • Correct shape type in argmin, fix svector growth #1079.
  • Add interp function to xmath #1071.
  • Fix valgrind warnings + memory leak in xadapt #1078.
  • Remove more clang warnings & errors on OS X #1077.
  • Add move constructor from xtensor <-> xarray #1051.
  • Add global support for negative axes in reducers/accumulators allow multiple axes in average #1010.
  • Fix reference usage in xio #1076.
  • Remove occurences of std::size_t and double #1073.
  • Add missing parantheses around min/max for MSVC #1061.

0.17.1

  • Add std namespace to size_t everywhere, remove std::copysign for MSVC #1053.
  • Fix (wrong) bracket warnings for older clang versions (e.g. clang 5 on OS X) #1050.
  • Fix strided view on view by using std::addressof #1049.
  • Add more adapt functions and shorthands #1043.
  • Improve CRTP base class detection #1041.
  • Fix rebind container ambiguous template for C++17 / GCC 8 regression #1038.
  • Fix functor return value #1035.

0.17.0

Breaking changes

  • Changed strides to std::ptrdiff_t #925.
  • Renamed count_nonzeros in count_nonzero #974.
  • homogenize xfixed constructors #970.
  • Improve random::choice #1011.

New features

  • add signed char to npy deserialization format #1017.
  • simd assignment now requires convertible types instead of same type #1000.
  • shared expression and automatic xclosure detection #992.
  • average function #987.
  • added simd support for complex #985.
  • argsort function #977.
  • propagate fixed shape #922.
  • added xdrop_slice #972.
  • added doc for xmasked_view #971.
  • added xmasked_view #969.
  • added dynamic_view #966.
  • added ability to use negative indices in keep slice #964.
  • added an easy way to create lambda expressions, square and cube #961.
  • noalias on rvalue #965.

Other changes

  • xshared_expression fixed #1025.
  • fix make_xshared #1024.
  • add tests to evaluate shared expressions #1019.
  • fix where on xview #1012.
  • basic usage replaced with getting started #1004.
  • avoided installation failure in absence of nlohmann_json #1001.
  • code and documentation clean up #998.
  • removed g++ “pedantic” compiler warnings #997.
  • added missing header in basic_usage.rst #996.
  • warning pass #990.
  • added missing include in xview #989.
  • added missing <map> include #983.
  • xislice refactoring #962.
  • added missing operators to noalias #932.
  • cmake fix for Intel compiler on Windows #951.
  • fixed xsimd abs deduction #946.
  • added islice example to view doc #940.

0.16.4

  • removed usage of std::transfomr in assign #868.
  • add strided assignment #901.
  • simd activated for conditional ternary functor #903.
  • xstrided_view split #905.
  • assigning an expression to a view throws if it has more dimensions #910.
  • faster random #913.
  • xoptional_assembly_base storage type #915.
  • new tests and warning pass #916.
  • norm immediate reducer #924.
  • add reshape_view #927.
  • fix immediate reducers with 0 strides #935.

0.16.3

  • simd on mathematical functions fixed #886.
  • fill method added to containers #887.
  • access with more arguments than dimensions #889.
  • unchecked method implemented #890.
  • fill method implemented in view #893.
  • documentation fixed and warnings removed #894.
  • negative slices and new range syntax #895.
  • xview_stepper with implicit xt::all bug fix #899.

0.16.2

  • Add include of xview.hpp in example #884.
  • Remove FS identifier #885.

0.16.1

  • Workaround for Visual Studio Bug #858.
  • Fixup example notebook #861.
  • Prevent expansion of min and max macros on Windows #863.
  • Renamed m_data to m_storage #864.
  • Fix regression with respect to random access stepping with views #865.
  • Remove use of CS, DS and ES qualifiers for Solaris builds #866.
  • Removal of precision type #870.
  • Make json tests optional, bump xtl/xsimd versions #871.
  • Add more benchmarks #876.
  • Forbid simd fixed #877.
  • Add more asserts #879.
  • Add missing batch_bool typedef #881.
  • simd_return_type hack removed #882.
  • Removed test guard and fixed dimension check in xscalar #883.

0.16.0

Breaking changes

  • data renamed in storage, raw_data renamed in data #792.
  • Added layout template parameter to xstrided_view #796.
  • Remove equality operator from stepper #824.
  • dynamic_view renamed in strided_view #832.
  • xtensorf renamed in xtensor_fixed #846.

New features

  • Added strided view selector #765.
  • Added count_nonzeros #781.
  • Added implicit conversion to scalar in xview #788.
  • Added tracking allocators to xutils.hpp #789.
  • xindexslice and shuffle function #804.
  • Allow xadapt with dynamic layout #816.
  • Added xtensorf initialization from C array #819.
  • Added policy to allocation tracking for throw option #820.
  • Free function empty for construction from shape #827.
  • Support for JSON serialization and deserialization of xtensor expressions #830.
  • Add trapz function #837.
  • Add diff and trapz(y, x) functions #841.

Other changes

  • Added fast path for specific assigns #767.
  • Renamed internal macros to prevent collisions #772.
  • dynamic_view unwrapping #775.
  • xreducer_stepper copy semantic fixed #785.
  • xfunction copy constructor fixed #787.
  • warnings removed #791.
  • xscalar_stepper fixed #802.
  • Fixup xadapt on const pointers #809.
  • Fix in owning buffer adaptors #810.
  • Macros fixup #812.
  • More fixes in xadapt #813.
  • Mute unused variable warning #815.
  • Remove comparison of steppers in assign loop #823.
  • Fix reverse iterators #825.
  • gcc-8 fix for template method calls #833.
  • refactor benchmarks for upcoming release #842.
  • flip now returns a view #843.
  • initial warning pass #850.
  • Fix warning on diff function #851.
  • xsimd assignment fixed #852.

0.15.9

  • missing layout method in xfixed #777.
  • fixed uninitialized backstrides #774.
  • update xtensor-blas in binder #773.

0.15.8

  • comparison operators for slices #770.
  • use default-assignable layout for strided views. #769.

0.15.7

  • nan related functions #718.
  • return types fixed in dynamic view helper #722.
  • xview on constant expressions #723.
  • added decays to make const value_type compile #727.
  • iterator for constant strided_view fixed #729.
  • strided_view on xfunction fixed #732.
  • Fixes in xstrided_view #736.
  • View semantic (broadcast on assign) fixed #742.
  • Compilation prevented when using ellipsis with xview #743.
  • Index of xiterator set to shape when reaching the end #744.
  • xscalar fixed #748.
  • Updated README and related projects #749.
  • Perfect forwarding in xfunction and views #750.
  • Missing include in xassign.hpp #752.
  • More related projects in the README #754.
  • Fixed stride computation for xtensorf #755.
  • Added tests for backstrides #758.
  • Clean up has_raw_data ins strided view #759.
  • Switch to ptrdiff_t for slices #760.
  • Fixed xview strides computation #762.
  • Additional methods in slices, required for xframe #764.

0.15.6

  • zeros, ones, full and empty_like functions #686.
  • squeeze view #687.
  • bitwise shift left and shift right #688.
  • ellipsis, unique and trim functions #689.
  • xview iterator benchmark #696.
  • optimize stepper increment #697.
  • minmax reducers #698.
  • where fix with SIMD #704.
  • additional doc for scalars and views #705.
  • mixed arithmetic with SIMD #713.
  • broadcast fixed #717.

0.15.5

  • assign functions optimized #650.
  • transposed view fixed #652.
  • exceptions refactoring #654.
  • performances improved #655.
  • view data accessor fixed #660.
  • new dynamic view using variant #656.
  • alignment added to fixed xtensor #659.
  • code cleanup #664.
  • xtensorf and new dynamic view documentation #667.
  • qualify namespace for compute_size #665.
  • make xio use dynamic_view instead of view #662.
  • transposed view on any expression #671.
  • docs typos and grammar plus formatting #676.
  • index view test assertion fixed #680.
  • flatten view #678.
  • handle the case of pointers to const element in xadapt #679.
  • use quotes in #include statements for xtl #681.
  • additional constructors for svector #682.
  • removed test_xsemantics.hpp from test CMakeLists #684.

0.15.4

  • fix gcc-7 error w.r.t. the use of assert #648.

0.15.3

  • add missing headers to cmake installation and tests #647.

0.15.2

  • xshape implementation #572.
  • xfixed container #586.
  • protected xcontainer::derived_cast #627.
  • const reference fix #632.
  • xgenerator access operators fixed #643.
  • contiguous layout optiimzation #645.

0.15.1

  • xarray_adaptor fixed #618.
  • xtensor_adaptor fixed #620.
  • fix in xreducer steppers #622.
  • documentation improved #621. #623. #625.
  • warnings removed #624.

0.15.0

Breaking changes

  • change reshape to resize, and add throwing reshape #598.
  • moved to modern cmake #611.

New features

  • unravel function #589.
  • random access iterators #596.

Other changes

  • upgraded to google/benchmark version 1.3.0 #583.
  • XTENSOR_ASSERT renamed into XTENSOR_TRY, new XTENSOR_ASSERT #603.
  • adapt fixed #604.
  • VC14 warnings removed #608.
  • xfunctor_iterator is now a random access iterator #609.
  • removed old-style-cast warnings #610.

0.14.1

New features

  • sort, argmin and argmax #549.
  • xscalar_expression_tag #582.

Other changes

  • accumulator improvements #570.
  • benchmark cmake fixed #571.
  • allocator_type added to container interface #573.
  • allow conda-forge as fallback channel #575.
  • arithmetic mixing optional assemblies and scalars fixed #578.
  • arithmetic mixing optional assemblies and optionals fixed #579.
  • operator== restricted to xtensor and xoptional expressions #580.

0.14.0

Breaking changes

  • xadapt renamed into adapt #563.
  • Naming consistency #565.

New features

  • add random::choice #547.
  • evaluation strategy and accumulators. #550.
  • modulus operator #556.
  • adapt: default overload for 1D arrays #560.
  • Move semantic on adapt #564.

Other changes

  • optional fixes to avoid ambiguous calls #541.
  • narrative documentation about xt::adapt #544.
  • xfunction refactoring #545.
  • SIMD acceleration for AVX fixed #557.
  • allocator fixes #558. #559.
  • return type of view::strides() fixed #568.

0.13.2

  • Support for complex version of isclose #512.
  • Fixup static layout in xstrided_view #536.
  • xexpression::operator[] now take support any type of sequence #537.
  • Fixing xinfo issues for Visual Studio. #529.
  • Fix const-correctness in xstrided_view. #526.

0.13.1

  • More general floating point type #518.
  • Do not require functor to be passed via rvalue reference #519.
  • Documentation improved #520.
  • Fix in xreducer #521.

0.13.0

Breaking changes

  • The API for xbuffer_adaptor has changed. The template parameter is the type of the buffer, not just the value type #482.
  • Change edge_items print option to edgeitems for better numpy consistency #489.
  • xtensor now depends on xtl version ~0.3.3 #508.

New features

  • Support for parsing the npy file format #465.
  • Creation of optional expressions from value and boolean expressions (optional assembly) #496.
  • Support for the explicit cast of expressions with different value types #491.

Other changes

  • Addition of broadcasting bitwise operators #459.
  • More efficient optional expression system #467.
  • Migration of benchmarks to the Google benchmark framework #473.
  • Container semantic and adaptor semantic merged #475.
  • Various fixes and improvements of the strided views #480. #481.
  • Assignment now performs basic type conversion #486.
  • Workaround for a compiler bug in Visual Studio 2017 #490.
  • MSVC 2017 workaround #492.
  • The size() method for containers now returns the total number of elements instead of the buffer size, which may differ when the smallest stride is greater than 1 #502.
  • The behavior of linspace with integral types has been made consistent with numpy #510.

0.12.1

  • Fix issue with slicing when using heterogeneous integral types #451.

0.12.0

Breaking changes

  • xtensor now depends on xtl version 0.2.x #421.

New features

  • xtensor has an optional dependency on xsimd for enabling simd acceleration #426.
  • All expressions have an additional safe access function (at) #420.
  • norm functions #440.
  • closure_pointer used in iterators returning temporaries so their operator-> can be correctly defined #446.
  • expressions tags added so xtensor expression system can be extended #447.

Other changes

  • Preconditions and exceptions #409.
  • isclose is now symmetric #411.
  • concepts added #414.
  • narrowing cast for mixed arithmetic #432.
  • is_xexpression concept fixed #439.
  • void_t implementation fixed for compilers affected by C++14 defect CWG 1558 #448.

0.11.3

  • Fixed bug in length-1 statically dimensioned tensor construction #431.

0.11.2

  • Fixup compilation issue with latest clang compiler. (missing constexpr keyword) #407.

0.11.1

  • Fixes some warnings in julia and python bindings

0.11.0

Breaking changes

  • xbegin / xend, xcbegin / xcend, xrbegin / xrend and xcrbegin / xcrend methods replaced with classical begin / end, cbegin / cend, rbegin / rend and crbegin / crend methods. Old begin / end methods and their variants have been removed. #370.
  • xview now uses a const stepper when its underlying expression is const. #385.

Other changes

  • xview copy semantic and move semantic fixed. #377.
  • xoptional can be implicitly constructed from a scalar. #382.
  • build with Emscripten fixed. #388.
  • STL version detection improved. #396.
  • Implicit conversion between signed and unsigned integers fixed. #397.