gcc/g++ warning: ‘void operator delete(void*, unsigned int)’ called on pointer returned from a mismatched allocation function [-Wmismatched-new-delete]
g++でワーニング warning: 'void operator delete(void*, unsigned int)' called on pointer returned from a mismatched allocation function [-Wmismatched-new-delete] が出た。newに対するdeleteが問題だった。