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i'm confused as to why these fields exist, since the typical implementation of a "temporary alloc" would be something like alloca(), and alloca() is usually just inlined code that adjusts the stack pointer, which is not a function whose address could be taken. this breaks the API/ABI and will require a note in the ChangeLog. possibly we could revisit the idea of "temporary allocations" by using C99 variable length arrays. this would have the advantage of being standardized, unlike alloca().
There are two tests. "test-generated-code" is a simple test that can easily be adapted. "test-generated-code2" is a comprehensive test. -- If you have a quick problem, hack at "test-generated-code"; but i don't want that file to be too hard to navigate, so you must eventually add a test to "test-generated-code2". I appreciate additional test cases! Please submit them as issues in the tracking system, or email me. -- Here are the files involved in each test: test.proto Protobuf declarations for the simple test. test.pb-c.c Protobuf-C generated code based on test.proto test.pb-c.h Protobuf-C generated code based on test.proto test-full.proto Protobuf declarations for the exhaustive test. test-full.pb-c.c Protobuf-C generated code based on test-full.proto test-full.pb-c.h Protobuf-C generated code based on test-full.proto test-full.pb.cc Protobuf (C++) generated code based on test-full.proto test-full.pb.h Protobuf (C++) generated code based on test-full.proto generated-code/ test-generated-code.c Actual test code. test-generated-code Test executable. generated-code2/ cxx-generate-packed-data.cc C++ code to generated data to compare with C. cxx-generate-packed-data Program whichs generates data (using C++ api) test-full-cxx-output.inc Output of cxx-generate-packed-data. test-generated-code2.c Actual test code. test-generated-code2 Test executable.