c - C中的strtok和strsep有什么区别

Question

有人可以解释一下strtok()和strsep()有什么区别吗？
它们的优缺点是什么？
我为什么还要选一个呢。

Answer 1

从GNU C库手册-Finding Tokens in a String:

One difference between strsep and strtok_r is that if the input string contains more than one character from delimiter in a row strsep returns an empty string for each pair of characters from delimiter. This means that a program normally should test for strsep returning an empty string before processing it.