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The seg fault from trying to use extract remains:

Program terminated with signal 11, Segmentation fault.
#0 extract<std::vector<bool, std::allocator<bool> > > (in=...,
bits=bits@entry=0xa3309ce0, bits_sz=bits_sz@entry=8) at
./op25_yank.h:109
109 x = (x << 1) | (in[bits[i]] ? 1 : 0);
(gdb) bt
#0 extract<std::vector<bool, std::allocator<bool> > > (in=...,
bits=bits@entry=0xa3309ce0, bits_sz=bits_sz@entry=8) at
./op25_yank.h:109
#1 0xb2e0aa53 in ldu1::lcf (this=0xb498148) at ldu1.cc:138
#2 0xb2e08931 in ldu1::snapshot (this=0xb498148) at ldu1.cc:102
#3 0xb2e0f42b in snapshot_du_handler::handle (this=0xadc8b28, du=...)
at snapshot_du_handler.cc:44

I can not figure out what I am doing wrong. I tried to copy how it
this procedure is done in abstract_data_unit::frame_body(). I give
the vector to extract() like this:

uint16_t
ldu1::lcf() const
{
const size_t LCF_BITS[] = {
0, 1, 2, 3, 4, 5, 6 , 7
};
const size_t LCF_BITS_SZ = sizeof(LCF_BITS) / sizeof(LCF_BITS[0]);
const uint16_t lcf = extract(get_vec(), LCF_BITS, LCF_BITS_SZ);
return lcf;

}

const_bit_vector&
ldu1::get_vec() const
{
return decoded_lcw_vec;
}

and i know the vector is there becuase it prints to the screen before
the program dies:

DU1 LCW Data--------------------------------------------
- ----------------------------------------------------------
Encoded LCW:
LCF: 00000000
MFID: 00000000
TGID: 0000000000000001
Source ID: 001000100000011111111101

Hamming decode:
LCF: 00000000
MFID: 00000000
TGID: 0000000000000001
Source ID: 001000100000011111111101

RS decode:
LCF: 00000000
MFID: 00000000
TGID: 0000000000000001
Source ID: 001000100000011111111101

Decode LDU1 LCW Vector
Complete:000000000000000001000000000000000000000000000001001000100000011111111101
- ----------------------------------------------------------

the vector is defined private in the .h file. Any help will be much
appreciated.

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