关于scanf的问题

Souryu_Asuka

这里的 s 显然不用 free 的

rickxbx

man scanf:

2.        a      (glibc)  Indicates that the conversion will be s, the needed memory space for the string will be malloc’ed
3.               and the pointer to it will be assigned to the char pointer variable, which does not have to be initialized
4.               before.  This flag does not exist in ANSI C (C89) and has a different meaning in C99.
6.        a      (C99) Equivalent to f.

复制代码

khc

这里的 s 显然需要 free 的