c常用头文件——string.h

#include

1、strerror

char * strerror(int errno)

eg:

fprintf(stderr, "Socket error: (errno: %d) %s\r\n", errno, strerror(errno));

2、bzero

/* Set N bytes of S to 0. */

extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1));

eg:

struct sockaddr_in serveraddr;

bzero(&serveraddr,sizeof(serveraddr));

3、@@todo