diff options
| author | Sebastian Berg <sebastian@sipsolutions.net> | 2013-03-21 14:23:21 +0100 |
|---|---|---|
| committer | Sebastian Berg <sebastian@sipsolutions.net> | 2013-04-01 21:12:46 +0200 |
| commit | 79d22dcef7947347660cbb953cb54ee3b38822f5 (patch) | |
| tree | 01c4dbfe03fd864ad6411f0f287702abc59ff96c /numpy/core/setup.py | |
| parent | 5a3ecafe1c7a57db473f926eb4be5a4040ec2344 (diff) | |
| download | numpy-79d22dcef7947347660cbb953cb54ee3b38822f5.tar.gz | |
BLD: Add NPY_RELAXED_STRIDES_CHECKING flag
This flag will toggle to a new definition for the contiguous flags
where only the memory layout is forced to be correct. As a particular
example this means that np.ones((3,1)) can be both C and F-Contiguous
and its stride[-1] can be arbitrary but the array still contiguous.
The flag will also make most new arrays be created with MAX_INTP as
stride so that unsafe usage of the stride will surface more commonly.
Diffstat (limited to 'numpy/core/setup.py')
| -rw-r--r-- | numpy/core/setup.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/numpy/core/setup.py b/numpy/core/setup.py index 37f649e6b..c65012126 100644 --- a/numpy/core/setup.py +++ b/numpy/core/setup.py @@ -15,6 +15,9 @@ from setup_common import * # Set to True to enable multiple file compilations (experimental) ENABLE_SEPARATE_COMPILATION = (os.environ.get('NPY_SEPARATE_COMPILATION', "1") != "0") +# Set to True to enable relaxed strides checking. This (mostly) means +# that `strides[dim]` is ignored if `shape[dim] == 1` when setting flags. +NPY_RELAXED_STRIDES_CHECKING = (os.environ.get('NPY_RELAXED_STRIDES_CHECKING', "0") != "0") # XXX: ugly, we use a class to avoid calling twice some expensive functions in # config.h/numpyconfig.h. I don't see a better way because distutils force @@ -435,6 +438,9 @@ def configuration(parent_package='',top_path=None): if ENABLE_SEPARATE_COMPILATION: moredefs.append(('ENABLE_SEPARATE_COMPILATION', 1)) + if NPY_RELAXED_STRIDES_CHECKING: + moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1)) + # Get long double representation if sys.platform != 'darwin': rep = check_long_double_representation(config_cmd) @@ -532,6 +538,9 @@ def configuration(parent_package='',top_path=None): if ENABLE_SEPARATE_COMPILATION: moredefs.append(('NPY_ENABLE_SEPARATE_COMPILATION', 1)) + if NPY_RELAXED_STRIDES_CHECKING: + moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1)) + # Check wether we can use inttypes (C99) formats if config_cmd.check_decl('PRIdPTR', headers = ['inttypes.h']): moredefs.append(('NPY_USE_C99_FORMATS', 1)) |