VS errors

Visual Studio uses several fake addresses as indicators of the state of memory:

0x00000000

 :
nullptr or NULL

0xFEEEFEEE

 :
delete has been called

0xCDCDCDCD

 :
Memory was created but not initialized.

error C2381: 'exit' : redefinition; __declspec(noreturn) differs 

To fix the error, right click on the
project name in the Solution Explorer tab and select Properties -> C/C++ -> Preprocessor -> Preprocessor definitions and append GLUT_BUILDING_LIB to the existing definitions, seperated by semicolons. "

Critical
error detected c0000374 - C++

Check if malloc（）function allocate space smaller than the program used, since if we use the space exceed the range allocated by malloc, there is no error information, until the next malloc allocate the used space to the new variable.