1 files changed, 26 insertions, 0 deletions
diff --git a/demo/gmp_build.py b/demo/gmp_build.py
new file mode 100644
index 0000000..e1a6000
--- /dev/null
+++ b/demo/gmp_build.py
@@ -0,0 +1,26 @@
+import cffi
+
+#
+# This is only a demo based on the GMP library.
+# There is a rather more complete (but perhaps outdated) version available at:
+# http://bazaar.launchpad.net/~tolot-solar-empire/+junk/gmpy_cffi/files
+#
+
+ffibuilder = cffi.FFI()
+
+ffibuilder.cdef("""
+
+    typedef struct { ...; } MP_INT;
+    typedef MP_INT mpz_t[1];
+
+    int mpz_init_set_str (MP_INT *dest_integer, char *src_cstring, int base);
+    void mpz_add (MP_INT *sum, MP_INT *addend1, MP_INT *addend2);
+    char * mpz_get_str (char *string, int base, MP_INT *integer);
+
+""")
+
+ffibuilder.set_source('_gmp_cffi', "#include <gmp.h>",
+                 libraries=['gmp', 'm'])
+
+if __name__ == '__main__':
+    ffibuilder.compile(verbose=True)