In VScode (MinGW compiler) to calculate the factorial every time stopped when n=6571,


Many times when running the code found on VS2019, n may stop on different values, for some of the critical data show the can sometimes run is completed, and sometimes tip stack overflow:

In the lower left window automatically n=1515

In the lower left window automatically n=1519

Every time I thought that runtime stack size is the same, just the stack overflow n should be constant, excuse me why VS2019 on this kind of situation?