crash while decoding Eurex

[tbozoo]

Hi,
I've tried to decode some Eurex Messages but it crash at the very first.
I'm using the mf_fixed_decoder on which I've added the generated files.

the message is composed of a header then a reset message (which is not present in the template file) then the messages.
I think Quickfast had added a default template 120, but the problem is not there
I've sjkipped the header (23 bytes) and 2 bytes for the template 120, but after having found a template 93 it crashes

Here are the template.xml the generated files and the test data :
https://drive.google.com/folderview?id=0B-8Io1lLd5gHNllqY1h2SEh5b3M&usp=sharing

[huangminghuang]

Based on my testing, I don't see there's any problem with it unless you use -hfix 23 to skip the header bytes. That option is used for skip certain bytes for each SINGLE message. Based on your data, you should just modify the program to skip the first 25 bytes outside of the loop and then decode the stream from the 26th byte.

[tbozoo]

It might be on the windows version because if I use -hfix 25 the first message crash.
I've commented "first += skip_header_bytes;" to avoid the skip on each message. (but anyway it crashes before)

Unhandled exception at 0x505B4025 (msvcr120d.dll) in mf_fixed_decode.exe: 0xC0000005: Access violation writing location 0x005F2000.

ntdll.dll!_NtRaiseException@12�()   Unknown
ntdll.dll!_KiUserExceptionDispatcher@8�()   Unknown
msvcr120d.dll!memset(unsigned char * dst, unsigned char value, unsigned long count) Line 136    Unknown
mf_fixed_decode.exe!mfast::vector_mref_base<char>::resize(unsigned int n, char c) Line 364  C++
mf_fixed_decode.exe!mfast::vector_mref_base<char>::assign<char const *>(const char * first, const char * last) Line 408 C++
mf_fixed_decode.exe!mfast::vector_mref_base<char>::copy_from(const mfast::value_storage & v) Line 455   C++
mf_fixed_decode.exe!mfast::vector_mref_base<char>::to_initial_value() Line 302  C++
mf_fixed_decode.exe!mfast::decoder_detail::constant_operator::decode_impl<mfast::string_mref<char> >(const mfast::string_mref<char> & mref, mfast::fast_istream & __formal, mfast::decoder_presence_map & pmap) Line 219    C++
mf_fixed_decode.exe!mfast::decoder_detail::constant_operator::decode(const mfast::string_mref<char> & mref, mfast::fast_istream & stream, mfast::decoder_presence_map & pmap) Line 263  C++
mf_fixed_decode.exe!mfast::fast_decoder_impl::visit<mfast::string_mref<char> >(mfast::string_mref<char> & mref) Line 150    C++
mf_fixed_decode.exe!mfast::detail::field_mutator_adaptor<mfast::fast_decoder_impl>::visit(const mfast::ascii_field_instruction * inst, void * storage) Line 238 C++
mf_fixed_decode.exe!mfast::ascii_field_instruction::accept(mfast::field_instruction_visitor & visitor, void * context) Line 38  C++
mf_fixed_decode.exe!mfast::detail::field_mutator_adaptor<mfast::fast_decoder_impl>::visit(const mfast::make_aggregate_mref<mfast::aggregate_cref> & ref) Line 191   C++
mf_fixed_decode.exe!mfast::make_aggregate_mref<mfast::aggregate_cref>::accept_mutator<mfast::fast_decoder_impl>(mfast::fast_decoder_impl & mutator) Line 352    C++
mf_fixed_decode.exe!mfast::fast_decoder_impl::decode_segment(mfast::fast_istreambuf & sb) Line 336  C++
mf_fixed_decode.exe!mfast::fast_decoder::decode(const char * & first, const char * last, bool force_reset) Line 380 C++
mf_fixed_decode.exe!main(int argc, const char * * argv) Line 152    C++
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