This is a case where the abstractions of the C programming language start to break down. 0 is indeed a null pointer constant in C, but the hardware sees 0 as a memory address like any other. Some systems have nothing valid there, but some other systems (like this one) put exception vectors at this location. When certain types of hardware interrupts or exceptions happen, the CPU jumps to certain fixed addresses around address 0 (the specific types of exceptions and the specific addresses are a property of the CPU architecture).
match find_index(arr, target) {
Continue reading...。业内人士推荐新收录的资料作为进阶阅读
Мир Российская Премьер-лига|20-й тур
，这一点在新收录的资料中也有详细论述
covering the layer below source code. If source code can now be generated from
"The international community is working hard trying to set standards and new regulations, but space commerce is changing faster than we can keep up," he added.，更多细节参见新收录的资料