pure virtual function call (C/C++)

armv7 toolchain Error

error message:
pure virtual function call

solve:
1. Occurs when calling a virtual function from a constructor or destructor.
2. Compiler option did not write -march==armv7-a.

example :
arm-linux-gnueabi-g++ -fno-omit-frame-pointer -march=armv7-a -funwind-tables

#toolchain #embedded #C #C++