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Diffstat (limited to 'src/qhull/src/libqhull/DEPRECATED.txt')
| -rw-r--r-- | src/qhull/src/libqhull/DEPRECATED.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/qhull/src/libqhull/DEPRECATED.txt b/src/qhull/src/libqhull/DEPRECATED.txt new file mode 100644 index 000000000..617275c14 --- /dev/null +++ b/src/qhull/src/libqhull/DEPRECATED.txt @@ -0,0 +1,29 @@ + +qhull/src/libqhull + + This directory contains the non-reentrant version of qhull, libqhull. + + New code should use the reentrant version of qhull (libqhull_r). + It allows multiple instances of qhull to run at the same time. On + modern architectures, it is nearly as fast as libqhull. + + Qhull programs may be built with either library. Each program has a + reentrant version (e.g., qconvex_r.c) and a non-reentrant + version (qconvex.c). The programs, rbox, qconvex, qdelaunay, qhalf, + and qvoronoi, are built with libqhull. The qhull program is built + with libqhull_r. + + Qhull's C++ interface requires libqhull_r. If you previously used the + C++ interface, you will need to update your code. See Changes.txt for + suggestions. + + The C code in libqhull looks unusual because of the 'qh' macro. The 'qh' + macro controls access to Qhull's global data structure, qhT. If + 'qh_QHpointer' is defined, 'qh' is 'qh_qh->' and 'qh_qh' is defined as + 'qhT *qh_qh', otherwise 'qh' is 'qh_qh.' and 'qh_qh' is defined as + 'qhT qh_qh'. + + libqhull will be supported indefinitely. The qh_QHpointer variation + of libqhull will be not be retested each release. It is replaced by + libqhull_r. + |