Pretty sure you need to include or at least according to
msdn
On Fri., Jan. 22, 2021, 2:34 p.m. Kacvinsky, Tom,
wrote:
> This code
>
> #include
>
> int main(int argc, char* argv[])
> {
> __iswcsymf(0);
> return 0;
> }
>
> compiled with this command
>
> g++ -o test test.cpp
>
> Fails with
This code
#include
int main(int argc, char* argv[])
{
__iswcsymf(0);
return 0;
}
compiled with this command
g++ -o test test.cpp
Fails with
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:\TEMP\ccmM3An6.o:test.cpp:(.text+0x1c): und
