diff options
Diffstat (limited to 'Python')
| -rwxr-xr-x | Python/pywarpx/_libwarpx.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Python/pywarpx/_libwarpx.py b/Python/pywarpx/_libwarpx.py index 9de822739..105bfc37f 100755 --- a/Python/pywarpx/_libwarpx.py +++ b/Python/pywarpx/_libwarpx.py @@ -38,7 +38,7 @@ else: _path_libc = _find_library('c') _libc = ctypes.CDLL(_path_libc) _LP_c_int = ctypes.POINTER(ctypes.c_int) -_LP_c_char = ctypes.POINTER(ctypes.c_char) +_LP_c_char = ctypes.c_char_p class LibWarpX(): @@ -397,10 +397,15 @@ class LibWarpX(): def amrex_init(self, argv, mpi_comm=None): # --- Construct the ctype list of strings to pass in argc = len(argv) + + # note: +1 since there is an extra char-string array element, + # that ANSII C requires to be a simple NULL entry + # https://stackoverflow.com/a/39096006/2719194 argvC = (_LP_c_char * (argc+1))() for i, arg in enumerate(argv): enc_arg = arg.encode('utf-8') - argvC[i] = ctypes.create_string_buffer(enc_arg) + argvC[i] = _LP_c_char(enc_arg) + argvC[argc] = _LP_c_char(b"\0") # +1 element must be NULL if mpi_comm is None or MPI is None: self.libwarpx_so.amrex_init(argc, argvC) |