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Fix: clang_getClangVersion() does not return ctypes.c_char_p #155

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Fix: clang_getClangVersion() does not return ctypes.c_char_p #155

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19 changes: 16 additions & 3 deletions ctypeslib/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,15 +53,28 @@ def __find_clang_libraries():

def clang_version():
"""Pull the clang C library version from the API"""

class CXString(ctypes.Structure):
_fields_ = [
("data", ctypes.c_char_p),
("private_flags", ctypes.c_uint),
]

# avoid loading the cindex API (cindex.conf.lib) to avoid version conflicts
get_version = cindex.conf.get_cindex_library().clang_getClangVersion
get_version.restype = ctypes.c_char_p
version_string = get_version()
version = 'Unknown'
get_version.restype = CXString

get_cstring = cindex.conf.get_cindex_library().clang_getCString
get_cstring.restype = ctypes.c_char_p

version_cxstring = get_version()
version_string = get_cstring(version_cxstring)
if version_string and len(version_string) > 0:
version_groups = re.match(br'.+version ((\d+\.)?(\d+\.)?(\*|\d+))', version_string)
if version_groups and len(version_groups.groups()) > 0:
version = version_groups.group(1).decode()

cindex.conf.get_cindex_library().clang_disposeString(version_cxstring)
return version


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