Hi,
Compile and debug
#include <fstream>
int main() {
std::ofstream f("foo.txt");
}
g++ a.cpp -g
gdb
b main
r
n
print f
with MinGW 4.82 (and 4.91) on Windows 7 I get:
$1 = <incomplete type>
whereas with gcc 4.82 on Ubuntu 14 I get the full type:
(gdb) print f
$1 = {<std::basic_ostream<char, std::char_traits<char> >> =
{<std::basic_ios<char, std::char_traits<char> >> = {<std::ios_base> = {
_vptr.ios_base = 0x7ffff7dc1e40 <vtable for
std::basic_ofstream<char, std::char_traits<char> >+64>,
...
That is a problem for every type compiled in libstdc++, not just ofstream.
The problem seems to be MinGW libstdc++ is missing debug info or it's not
loaded properly:
(gdb) info sharedlibrary
>From To Syms Read Shared Object Library
0x6fc41000 0x6fd32e00 Yes *(*)*
C:\Users\yaron\Downloads\mingw32\bin\libstdc++-6.dll
*(*): Shared library is missing debugging information.*
(gdb) info sharedlibrary
>From To Syms Read Shared Object Library
0x00007ffff7b315c0 0x00007ffff7b9499a Yes
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
Yaron
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