memset 0和0X00

Question

Is there any difference in the below lines: 以下几行有什么不同：

char myname[512]; -- created a character array and wants to memset it.

Is there any difference in the below two lines. 以下两行有什么不同。

memset (&myname, 0x00, sizeof(myname));
memset (&myname, 0, sizeof(myname));

I am pretty sure that both will nullify the myname array. 我很确定两者都会使myname数组无效。

Answer 1

The 0x00 syntax is for the programmer only. 0x00语法仅适用于程序员。 There will be no difference in the compiled code. 编译代码没有区别。

I you want to try the experiment yourself quickly you could use gcc explorer . 我想你自己快速尝试一下你可以使用gcc explorer 。

You would see that the generated assembly is identical. 您会看到生成的程序集是相同的。