c++ dummy need help

friedCrumpet: Maybe you should post your error messages?

When I compiled main.c using g++ compiler on cygwin the errors was

$ g++ main.c
In file included from /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/backward/fst
ream.h:31,
from main.c:1:
/usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/backward/backward_warning.h:32:2:
warning: #warning This file includes at least one deprecated or antiquated heade
r. Please consider using one of the 32 headers found in section 17.4.1.2 of the
C++ standard. Examples include substituting the <X> header for the <X.h> header
for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. T
o disable this warning use -Wno-deprecated.
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1a1): undefined reference to
`get_args(TransPar&, int, char**)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1f7): undefined reference to
`get_args(SeqPar&, int, char**)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x250): undefined reference to
`get_args(TaxPar&, int, char**)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x284): undefined reference to
`print_version()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x2ac): undefined reference to
`print_version()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x4b7): undefined reference to
`StringSet::StringSet(int, PatternPar, Taxonomy*, float, float)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x50e): undefined reference to
`RandSeed::set_seed(long)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x5a5): undefined reference to
`TransPar::write(std::basic_ostream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x5ba): undefined reference to
`StringSet::display(std::basic_ofstream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x6e1): undefined reference to
`Transaction::write_asc(std::basic_ofstream<char, std::char_traits<char> >&, in
t)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x70a): undefined reference to
`Transaction::write(std::basic_ofstream<char, std::char_traits<char> >&, int)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x734): undefined reference to
`Transaction::~Transaction()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xa03): undefined reference to
`Taxonomy::Taxonomy(int, int, float, float)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xa61): undefined reference to
`Taxonomy::write_asc(std::basic_ofstream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xa82): undefined reference to
`Taxonomy::write(std::basic_ofstream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xbc8): undefined reference to
`StringSet::StringSet(int, PatternPar, Taxonomy*, float, float)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xc1d): undefined reference to
`TaxPar::write(std::basic_ostream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xc32): undefined reference to
`StringSet::display(std::basic_ofstream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xd77): undefined reference to
`Transaction::write_asc(std::basic_ofstream<char, std::char_traits<char> >&, in
t)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xda0): undefined reference to
`Transaction::write(std::basic_ofstream<char, std::char_traits<char> >&, int)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xdca): undefined reference to
`Transaction::~Transaction()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xe02): undefined reference to
`Transaction::~Transaction()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0xfc8): undefined reference to
`Transaction::Transaction(int)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1024): undefined reference t
o `StringSetIter::get_pat()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1041): undefined reference t
o `Transaction::add(String&, unsigned char)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1050): undefined reference t
o `StringSetIter::unget_pat()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x12db): undefined reference t
o `StringSet::StringSet(int, PatternPar, Taxonomy*, float, float)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x13e2): undefined reference t
o `StringSet::StringSet(int, PatternPar, Taxonomy*, float, float)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1437): undefined reference t
o `SeqPar::write(std::basic_ostream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1453): undefined reference t
o `StringSet::display(std::basic_ofstream<char, std::char_traits<char> >&, Strin
gSet&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x15b5): undefined reference t
o `CustSeq::write_asc(std::basic_ofstream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x15d6): undefined reference t
o `CustSeq::write(std::basic_ofstream<char, std::char_traits<char> >&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1600): undefined reference t
o `CustSeq::~CustSeq()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x177a): undefined reference t
o `CustSeq::CustSeq(int, int, int)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x17de): undefined reference t
o `StringSetIter::get_pat()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x17fa): undefined reference t
o `CustSeq::add(String&, StringSet&)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text+0x1809): undefined reference t
o `StringSetIter::unget_pat()'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text$_ZN11PoissonDistclEv[PoissonDi
st::operator()()]+0x16): undefined reference to `PoissonDist::poidev(float)'
/cygdrive/c/WINDOWS/TEMP/ccrB1YER.o:main.c:(.text$_ZN11UniformDistC1Ev[UniformDi
st::UniformDist()]+0x15): undefined reference to `RandSeed::new_seed()'
collect2: ld returned 1 exit status

haloo101

friedCrumpet

haloo101

haloo101

ronindanbo