BD Software STL Message Decryptor v3.10 for gcc 2/3/4
testdeq.cc: In function 'int main()':
testdeq.cc:13:22: error: 'istream_iterator' was not declared in this scope
testdeq.cc:13:45: error: expected primary-expression before '
    >' token
testdeq.cc:17:7: error: 'class deque<Widget>' has no member named 'foo'
testdeq.cc:19:43: error: conversion from 'void' to non-scalar type 'deque<
        Widget
    >::iterator' requested
testdeq.cc:22:9: error: no match for 'operator=' in 'wd = 10'
deque.tcc:64:5: candidate is: deque<Widget> & deque<Widget>::operator=(
        const deque<Widget> &)
testdeq.cc:23:15: error: No match for 'basic_string<
        char
    >::basic_string(deque<Widget> &)'
testdeq.cc:25:32: error: expected primary-expression before '
    >' token
testdeq.cc:25:73: error: expected primary-expression before '
    >' token
testdeq.cc:25:75: error: expected primary-expression before '
    )' token

STL Decryptor reminder:
    Use the -cand:L option to see all suppressed template candidates