felicity_one的博客

The issue is that ,in 32bits,an int(which is a 32bit integer) will hodl a pointer value.             when you move to 64bits ,you can no longer store a pointer.            The 'intptr_t' type is des

when i add a new .c in the qtcreator project ,it has this error:          unknow type name namespace,unknow type name class         and the solution just change the .c to .cpp can solve the problm

缺少头文件信息：#include