expected ';' identifier or '(' before 'struct'

dragonmuou 2012-09-12 03:12:15



#ifndef _IPV4_H

#define _IPV4_H



struct ipv4_h {

#if __BYTE_ORDER == __LITTLE_ENDIAN

    unsigned int hlen :4;

    unsigned int ver :4;

#elif __BYTE_ORDER == __BIG_ENDIAN

    unsigned int ver :4;

    unsigned int hlen :4;

#else

#error "please fix <bits/endian.h>"

#endif

    uint8_t tos;

    uint16_t tot_len;

    uint16_t id;

#if __BYTE_ORDER == __LITTLE_ENDIAN

    uint16_t frag_off1 :5;

    uint16_t mf :1;

    uint16_t df :1;

    uint16_t res :1;

    uint16_t frag_off2 :8;

#define IP_SET_FRAGOFF(ip,v) {(ip)->frag_off1=((v)&0x1f00)>>8; (ip)->frag_off2=(v)&0x00ff;}

#elif __BYTE_ORDER == __BIG_ENDIAN

    uint16_t res :1;

    uint16_t df :1;

    uint16_t mf :1;

    uint16_t frag_off :13;

#define IP_SET_FRAGOFF(ip,v) (ip)->frag_off=(v)

#else

#error "please fix <bits/endian.h>"

#endif

    uint8_t ttl;

    uint8_t protocol;

    uint16_t checksum;

    uint32_t saddr;

    uint32_t daddr;

};

#endif

...全文

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赵4老师 2012-09-12

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偶遇到类似问题都是用
“每次用/*...*/注释掉不同部分再重新编译，直到定位到具体语法出错的位置。”
的方法解决的。

dragonmuou 2012-09-12

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多谢多谢问题解决了，是在其他.h文件中，结构体定义错误，不过这个错误定位也太忽悠了，怎么会定位到这个文件来，这个文件我根本没有引用到其他文件，多谢啊[Quote=引用 3 楼的回复:]
引用 2 楼的回复:
囧，那为什么我的gcc编译不通过，肯跌啊

引用 1 楼的回复:
C/C++ code

typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;

#ifndef _IPV4_H
#define _IPV4_H
……
[/Quote]

Corner 2012-09-12

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[Quote=引用 2 楼的回复:]
囧，那为什么我的gcc编译不通过，肯跌啊

引用 1 楼的回复:
C/C++ code

typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;

#ifndef _IPV4_H
#define _IPV4_H

struct ipv4……
[/Quote]
额，我增加了uint8_t、uint16_t、uint32_t的定义。你的宏扩展开之后得到的结构体定义是什么。。

dragonmuou 2012-09-12

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囧，那为什么我的gcc编译不通过，肯跌啊[Quote=引用 1 楼的回复:]
C/C++ code

typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;

#ifndef _IPV4_H
#define _IPV4_H

struct ipv4_h {
#if __BYTE_ORDER == __LITTLE_EN……
[/Quote]

Corner 2012-09-12

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typedef unsigned char uint8_t;

typedef unsigned short uint16_t;

typedef unsigned int uint32_t;



#ifndef _IPV4_H

#define _IPV4_H



struct ipv4_h {

#if __BYTE_ORDER == __LITTLE_ENDIAN

    unsigned int hlen :4;

    unsigned int ver :4;

#elif __BYTE_ORDER == __BIG_ENDIAN

    unsigned int ver :4;

    unsigned int hlen :4;

#else

#error "please fix <bits/endian.h>"

#endif

    uint8_t tos;

    uint16_t tot_len;

    uint16_t id;

#if __BYTE_ORDER == __LITTLE_ENDIAN

    uint16_t frag_off1 :5;

    uint16_t mf :1;

    uint16_t df :1;

    uint16_t res :1;

    uint16_t frag_off2 :8;

#define IP_SET_FRAGOFF(ip,v) {(ip)->frag_off1=((v)&0x1f00)>>8; (ip)->frag_off2=(v)&0x00ff;}

#elif __BYTE_ORDER == __BIG_ENDIAN

    uint16_t res :1;

    uint16_t df :1;

    uint16_t mf :1;

    uint16_t frag_off :13;

#define IP_SET_FRAGOFF(ip,v) (ip)->frag_off=(v)

#else

#error "please fix <bits/endian.h>"

#endif

    uint8_t ttl;

    uint8_t protocol;

    uint16_t checksum;

    uint32_t saddr;

    uint32_t daddr;

};

#endif