指向结构数组的指针 [英] pointer to structure array

问题描述

您好，


我在尝试将指针传递给结构时遇到一些麻烦

数组（作为函数参数），执行时我得到了seg故障。


我可以通过谷歌搜索得到的最好的是：


#define MAX_GRAPH 256


typedef struct edge {

long delay;

long bandw;

} edge;


edge link [MAX_GRAPH] [MAX_GRAPH];


int print_structure（edge * graph [MAX_GRAPH] [MAX_GRAPH]）{

int i，j; < （$ = 0; i< nodes; i ++）{b / b $ j $ 0; j< nodes; j ++）{

printf （[％d] [％d] .bandw =％d \ t \ t"，i，j，graph [i] [j] - > bandw）; //

赛格故障！

printf（" [％d] [％d] .delay =％d \ n"，i，j，graph [i ] [j] - >延迟）;

}

}

返回0;

}

int main（int argc，char * argv []）{


....

print_structure（link）;

....

}


有人能帮我发现问题吗？


谢谢，


Paulo

Hello,

I am having some trouble trying to pass a pointer to an structure
array (as function argument), when executing I get seg faults.

The best I could get out from googling was:

#define MAX_GRAPH 256

typedef struct edge{
long delay;
long bandw;
} edge;

edge link[MAX_GRAPH][MAX_GRAPH];

int print_structure(edge *graph[MAX_GRAPH][MAX_GRAPH]){
int i, j;
for(i=0;i<nodes;i++){
for(j=0;j<nodes;j++){
printf("[%d][%d].bandw = %d\t\t", i, j, graph[i][j]->bandw); //
SEG FAULT!
printf("[%d][%d].delay = %d\n", i, j, graph[i][j]->delay);
}
}
return 0;
}
int main(int argc, char* argv[]){

....
print_structure(link);
....
}

Could anybody help me spot the problem?

Thanks,

Paulo

推荐答案

es ****** @ gmail.com 写道：

您好，


我在尝试将指针传递给结构时遇到了一些麻烦：
数组（作为函数参数），执行时我遇到了seg错误。

我最好能从谷歌搜索中获得：


#define MAX_GRAPH 256


typedef struct edge {

长延迟;

长带;

}边缘;


边缘链接[MAX_GRAPH] [ MAX_GRAPH];


int print_structure（edge * graph [MAX_GRAPH] [MAX_GRAPH]）{

int i，j;

for（i = 0; i< nodes; i ++）{

for（j = 0; j< nodes; j ++）{

printf（" [％d] [％d] .bandw =％d \ t \ t"，i，j，graph [i] [j] - > bandw）; //

赛格故障！

printf（" [％d] [％d] .delay =％d \ n"，i，j，graph [i ] [j] - >延迟）;

}

}

返回0;

}


int main（int argc，char * argv []）{


...

print_structure（link） ;

...

}


有人能帮我发现问题吗？


谢谢，


Paulo

Hello,

I am having some trouble trying to pass a pointer to an structure
array (as function argument), when executing I get seg faults.

The best I could get out from googling was:

#define MAX_GRAPH 256

typedef struct edge{
long delay;
long bandw;
} edge;

edge link[MAX_GRAPH][MAX_GRAPH];

int print_structure(edge *graph[MAX_GRAPH][MAX_GRAPH]){
int i, j;
for(i=0;i<nodes;i++){
for(j=0;j<nodes;j++){
printf("[%d][%d].bandw = %d\t\t", i, j, graph[i][j]->bandw); //
SEG FAULT!
printf("[%d][%d].delay = %d\n", i, j, graph[i][j]->delay);
}
}
return 0;
}
int main(int argc, char* argv[]){

...
print_structure(link);
...
}

Could anybody help me spot the problem?

Thanks,

Paulo

打印print_struct不是根据其类型调用的（从其推断

定义）。 [删除定义中的*]

print_struct is called not according to its type (inferred from its
definition). [Remove the * in the definition]

es ****** @ gmail.com 写道：

>

您好，


我在尝试将指针传递给结构

数组（作为函数参数）时遇到了一些麻烦，执行时我遇到了seg错误。


最好的我可以从谷歌搜索中获得：


#define MAX_GRAPH 256

typedef struct edge {

long delay;

长带;

}边缘;


边缘链接[MAX_GRAPH] [MAX_GRAPH];


int print_structure（edge * graph [MAX_GRAPH] [MAX_GRAPH]）{

int i，j;

for（i = 0; i< nodes; i ++）{

for（j = 0; j< nodes; j ++）{

printf（" [％d] [％d] .bandw =％d \\ n \\ t \t"，i，j，graph [i] [j] - > bandw）; //

赛格故障！

printf（" [％d] [％d] .delay =％d \ n"，i，j，graph [i ] [j] - >延迟）;

}

}

返回0;

}


int main（int argc，char * argv []）{


...

print_structure（link） ;

...

}


有人能帮我发现问题吗？

>
Hello,

I am having some trouble trying to pass a pointer to an structure
array (as function argument), when executing I get seg faults.

The best I could get out from googling was:

#define MAX_GRAPH 256

typedef struct edge{
long delay;
long bandw;
} edge;

edge link[MAX_GRAPH][MAX_GRAPH];

int print_structure(edge *graph[MAX_GRAPH][MAX_GRAPH]){
int i, j;
for(i=0;i<nodes;i++){
for(j=0;j<nodes;j++){
printf("[%d][%d].bandw = %d\t\t", i, j, graph[i][j]->bandw); //
SEG FAULT!
printf("[%d][%d].delay = %d\n", i, j, graph[i][j]->delay);
}
}
return 0;
}

int main(int argc, char* argv[]){

...
print_structure(link);
...
}

Could anybody help me spot the problem?

/ * BEGIN new.c * /


#include< stdio.h>


#define MAX_GRAPH 3

typedef struct edge {

long delay;

long bandw;

}边缘;


size_t nodes = MAX_GRAPH;


void print_structure（edge（* graph）[MAX_GRAPH]） ;


int main（无效）

{

边连结[MAX_GRAPH] [MAX_GRAPH] = {

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16

};


print_structure（link）;

返回0;

}


void print_structure（edge（* graph） ）[MAX_GRAPH]）

{

size_t i，j;


for（i = 0; i< nodes; i ++）{

for（j = 0; j< nodes; j ++）{

printf（" [％d] [％d] .bandw =％ld \t"，i，j，graph [i] [j] .bandw）;

printf（" [％d] [％d] .delay =％ld \ n"， i，j，graph [i] [j] .delay）;

}

}

}


/ * END new.c * /

-

pete

/* BEGIN new.c */

#include <stdio.h>

#define MAX_GRAPH 3

typedef struct edge {
long delay;
long bandw;
} edge;

size_t nodes = MAX_GRAPH;

void print_structure(edge (*graph)[MAX_GRAPH]);

int main(void)
{
edge link[MAX_GRAPH][MAX_GRAPH] = {
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
};

print_structure(link);
return 0;
}

void print_structure(edge (*graph)[MAX_GRAPH])
{
size_t i, j;

for(i = 0; i < nodes; i++){
for(j=0;j < nodes; j++){
printf("[%d][%d].bandw = %ld\t", i, j, graph[i][j].bandw);
printf("[%d][%d].delay = %ld\n", i, j, graph[i][j].delay);
}
}
}

/* END new.c */
--
pete

Ark and Pete，非常感谢你。


你们是最好的。

pete写道：

Ark and Pete, Thank you _very_ much.

You guys are the best.
pete wrote:

es ****** @ gmail.com 写道：

您好，


我在尝试将指针传递给一个结构时遇到了一些麻烦
数组（作为函数参数），执行时我遇到了seg错误。


我可以通过Google搜索获得的最佳效果是：


#define MAX_GRAPH 256

typedef struct edge {

长延迟;

长带;

}边缘;


边缘链接[MAX_GRAPH] [ MAX_GRAPH];


int print_structure（edge * graph [MAX_GRAPH] [MAX_GRAPH]）{

int i，j;

for（i = 0; i< nodes; i ++）{

for（j = 0; j< nodes; j ++）{

printf（" [％d] [％d] .bandw =％d \\ t\t" ;, I，J，图表[i] [j] - GT; bandw）; //

赛格故障！

printf（" [％d] [％d] .delay =％d \ n"，i，j，graph [i ] [j] - >延迟）;

}

}

返回0;

}


int main（int argc，char * argv []）{


...

print_structure（link） ;

...

}


有人能帮我发现问题吗？

Hello,

I am having some trouble trying to pass a pointer to an structure
array (as function argument), when executing I get seg faults.

The best I could get out from googling was:

#define MAX_GRAPH 256

typedef struct edge{
long delay;
long bandw;
} edge;

edge link[MAX_GRAPH][MAX_GRAPH];

int print_structure(edge *graph[MAX_GRAPH][MAX_GRAPH]){
int i, j;
for(i=0;i<nodes;i++){
for(j=0;j<nodes;j++){
printf("[%d][%d].bandw = %d\t\t", i, j, graph[i][j]->bandw); //
SEG FAULT!
printf("[%d][%d].delay = %d\n", i, j, graph[i][j]->delay);
}
}
return 0;
}

int main(int argc, char* argv[]){

...
print_structure(link);
...
}

Could anybody help me spot the problem?

/ * BEGIN new.c * /


#include< stdio.h>


#define MAX_GRAPH 3

typedef struct edge {

long delay;

long bandw;

}边缘;


size_t nodes = MAX_GRAPH;


void print_structure（edge（* graph）[MAX_GRAPH]） ;


int main（无效）

{

边连结[MAX_GRAPH] [MAX_GRAPH] = {

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16

};


print_structure（link）;

返回0;

}


void print_structure（edge（* graph） ）[MAX_GRAPH]）

{

size_t i，j;


for（i = 0; i< nodes; i ++）{

for（j = 0; j< nodes; j ++）{

printf（" [％d] [％d] .bandw =％ld \t"，i，j，graph [i] [j] .bandw）;

printf（" [％d] [％d] .delay =％ld \ n"， i，j，graph [i] [j] .delay）; < br $>
}

}

}


/ * END new.c * /


-

pete

/* BEGIN new.c */

#include <stdio.h>

#define MAX_GRAPH 3

typedef struct edge {
long delay;
long bandw;
} edge;

size_t nodes = MAX_GRAPH;

void print_structure(edge (*graph)[MAX_GRAPH]);

int main(void)
{
edge link[MAX_GRAPH][MAX_GRAPH] = {
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
};

print_structure(link);
return 0;
}

void print_structure(edge (*graph)[MAX_GRAPH])
{
size_t i, j;

for(i = 0; i < nodes; i++){
for(j=0;j < nodes; j++){
printf("[%d][%d].bandw = %ld\t", i, j, graph[i][j].bandw);
printf("[%d][%d].delay = %ld\n", i, j, graph[i][j].delay);
}
}
}

/* END new.c */
--
pete

这篇关于指向结构数组的指针的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！