这似乎是一个愚蠢的问题，但我找不到答案.
无论如何，如果将字符串中的任意字符设置为空， 然后释放字符串，这是否会导致内存泄漏？
我想我对免费功能的工作原理的了解是有限的.
/*
char *
strchr(const char *s, int c);
char *
strrchr(const char *s, int c);
The strchr() function locates the first occurrence of c (converted to a
char) in the string pointed to by s. The terminating null character is
considered part of the string; therefore if c is ‘\0’, the functions
locate the terminating ‘\0’.
The strrchr() function is identical to strchr() except it locates the
last occurrence of c.
*/
char* string = strdup ("THIS IS, A STRING WITH, COMMAS!");
char* ch = strrchr( string, ',' );
*ch = 0;
free( string );
/*
The resulting string should be: "THIS IS, A STRING WITH"
When the string pointer is freed, does this result in a memory leak?
*/