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Hi,
I have 3 structs that I am trying to work with.
How do I assign values to the second struct ?Code:typedef struct{
char time[ARRAY_SIZE];
char date[ARRAY_SIZE];
}ARRAY1, 2_ARRAY;
typedef struct{
char name[10];
ARRAY1 *main;
}first;
typedef struct{
char names[10];
2_ARRAY *other;
}second;
I am getting confused.
lotta luv
2_ARRAY is not a valid name.
Perhaps something like this?
--Code:first x;
x.main = ... (something like malloc, perhaps)
strcpy(x.main->time, "12:01:59");
Mats
What do you mean by "assign values to the second struct"? If you had a variable of type first, then you would use .name and .main to access the char array and ARRAY1 array, respectively.
Side question: Do you intend for ARRAY1 and 2_ARRAY to mean the same thing?
oh ok...whats the syntax for assigning time through the "struct second"
Aside from the code not compiling as the name (2_ARRAY) starts with a digit, it would be similar to the first case.Quote:
Originally Posted by bandal27
I also would not use the variable name of "*main".
I do agree - don't call other things than the main entry function "main".Quote:
Originally Posted by slingerland3g
But that is distinct from "main" because it's inside the struct itself - it can not be used on it's own - it will always be preceded by a variable name and . or ->
--
Mats
> How do I assign values to the second struct ?
Just add more dots.
foo.outerMember.innerMember = 1;
foo.outerPtr->innerMember = 2;
etc etc
thank you,
Just one last question is the malloc needed here...?
If you've got pointers, then you need to make them point somewhere.
One popular way is to use malloc.
I am trying to get this to work.
I am getting this error atCode:typedef struct{
char time[ARRAY_SIZE];
char date[ARRAY_SIZE];
}ARRAY1, 2_ARRAY;
typedef struct{
char name[10];
ARRAY1 *main;
}first;
typedef struct{
char names[10];
2_ARRAY *other;
}second;
struct first *ptr;
struct second *new;
ptr = &first_info;
new = &second_info;
strcpy(first_info.main[count].key,tokens[i]);
strcpy(first_info.main[count].key,tokens[i]);
line 115: syntax error before or at: *
Please help
CORRECTION..
this is the code having error
strcpy(first_info.main[count].time,tokens[i]);
line 115: syntax error before or at: *
> strcpy(first_info.main[count].key,tokens[i]);
So is this line of code actually inside a function?
Also, having a member called main is going to be confusing, since there's also a function with the same name.
A complete example which we can copy/paste into a compiler is much better than simply snipping the lines which you think are relevant.
Actually the line is in the main().
Its not in any function.
The code is too long.
Here is the code I am trying to run
Code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<regex.h>
#define ARRAY_SIZE 340
#define STRUCT_SIZE 340
#define MAXTOKENS 256
#define MAXLINE 1024 /* fgets buff */
#define MINLEN 3 /* skip lines shorter as */
#define NUL '\0'
#define TRUE 1
#define FALSE 0
char *strtok( char *str1, const char *str2 );
typedef struct{
char time[ARRAY_SIZE];
char date[ARRAY_SIZE];
}ARRAY1,2_ARRAY;
typedef struct{
char name[10];
ARRAY1 *main;
}first;
typedef struct{
char db[10];
2_ARRAY *other;
}second;
char delims[] = "=";
char **split(char *string, char *delim);
int trim(char *str);
first first_info;
second second_info;
ARRAY1 ARRAY1_info;
dbmARRAY1 ARRAY12_info;
int main()
{
printf ("TEST \n" );
FILE *data_txt,*dbm_txt;
char *delim = "=";
char **tokens = NULL;
int i = 0, mcount = 0, lcount = 0;
int loop;
int sort;
int a=0;
int b=0;
int j;
int count = 0, cnt = 0;
char line[MAXLINE],line2[MAXLINE];
struct ARRAY1 *str_ptr;
struct dbmARRAY1 *new_ptr;
str_ptr = &ARRAY1_info;
new_ptr = &ARRAY12_info;
struct first *ptr;
struct second *new;
ptr = &first_info;
new = &second_info;
data_txt = fopen("db2cfg.txt","r");
dbm_txt = fopen("db2cfg2.txt","r");
int read = 0;
while (fgets(line,100,data_txt)!=NULL)
{
trim(line);
strcpy(first_info.name,"ccmlmd");
if ((strlen(line) > 1)&&(read!=0)){
lcount++;
tokens = split(line, delim);
for(i = 0; tokens[i] != NULL; i++) {
if (i==0){
if (tokens[i]!=NULL){
// printf("%02d: time %s ", i, tokens[i]);
strcpy(first_info.main[count].time,tokens[i]);
}
}
if (i==1){
if(tokens[i]!=NULL){
// printf("%02d: date %s", i, tokens[i]);
strcpy(first_info.main[count].date,tokens[i]);
}
}
}
for(i = 0; tokens[i] != NULL; i++)
free(tokens[i]);
free(tokens);
count++;
lcount++;
}
for(i=0; i < count; i++) {
printf("%d %s %s", i,first_info.main[i].time, first_info.main[i].date);
}
i = 0;
fclose(data_txt);
// start db2cfg2
read = 0;
while (fgets(line2,100,dbm_txt)!=NULL)
{
trim(line2);
strcpy(second_info.db,"ccmlmd");
// printf("other %s",second_info.db);
if ((strlen(line2) > 1)&&(read!=0)){
mcount++;
tokens = split(line2, delim);
for(i = 0; tokens[i] != NULL; i++) {
if (i==0){
if (tokens[i]!=NULL){
// printf("%02d: time %s ", i, tokens[i]);
strcpy(second_info.other[cnt].time,tokens[i]);
}
}
if (i==1){
if(tokens[i]!=NULL){
// printf("%02d: date %s", i, tokens[i]);
strcpy(second_info.other[cnt].date,tokens[i]);
}
}
}
for(i = 0; tokens[i] != NULL; i++)
free(tokens[i]);
free(tokens);
cnt++;
} // add for(j=0 ;j<=cnt
j = 0;
for(j=0; j < cnt; j++) {
printf("%d %s %s", j,second_info.other[j].time,second_info.other[j].date);
}
fclose(dbm_txt);
return 0;
exit(0);
}
Ok, so unless you are using a strange compiler that accepts this, 2_ARRAY is STILL not a valid name in C.
Fixing that will remove SOME of the problems with your code.
The code is very badly indented - you really need to fix that up, which hides the fact that you are misising two end-braces in the code.
You should not use "struct name" when name is a typedef'd name.
loop, sort, a and b are unused in the main function.
dbmARRAY1 is not defined.
You are includig regex.h, but not using any regular expressions.
--
Mats
I have changed the names of the original structs....but here is the corrected one....
Can you confirm if this line is correct ?Code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<regex.h>
#define ARRAY_SIZE 340
#define STRUCT_SIZE 340
#define MAXTOKENS 256
#define MAXLINE 1024 /* fgets buff */
#define MINLEN 3 /* skip lines shorter as */
#define NUL '\0'
#define TRUE 1
#define FALSE 0
char *strtok( char *str1, const char *str2 );
typedef structn ARRAY1{
char time[ARRAY_SIZE];
char date[ARRAY_SIZE];
}ARRAY1,ARR2;
typedef struct first{
char name[10];
ARRAY1 *main;
}first;
typedef struct second{
char db[10];
2_ARRAY *other;
}second;
char delims[] = "=";
char **split(char *string, char *delim);
int trim(char *str);
first first_info;
second second_info;
ARRAY1 ARRAY1_info;
ARR2 ARR2_info;
int main()
{
printf ("TEST \n" );
FILE *data_txt,*dbm_txt;
char *delim = "=";
char **tokens = NULL;
int i = 0, mcount = 0, lcount = 0;
int loop;
int sort;
int a=0;
int b=0;
int j;
int count = 0, cnt = 0;
char line[MAXLINE],line2[MAXLINE];
struct ARRAY1 *str_ptr;
struct ARR2 *new_ptr;
str_ptr = &ARRAY1_info;
new_ptr = &ARR2_info;
struct first *ptr;
struct second *new;
ptr = &first_info;
new = &second_info;
data_txt = fopen("db2cfg.txt","r");
dbm_txt = fopen("db2cfg2.txt","r");
int read = 0;
while (fgets(line,100,data_txt)!=NULL)
{
trim(line);
strcpy(first_info.name,"ccmlmd");
if ((strlen(line) > 1)&&(read!=0)){
lcount++;
tokens = split(line, delim);
for(i = 0; tokens[i] != NULL; i++) {
if (i==0){
if (tokens[i]!=NULL){
// printf("%02d: time %s ", i, tokens[i]);
strcpy(first_info.main[count].time,tokens[i]);
}
}
if (i==1){
if(tokens[i]!=NULL){
// printf("%02d: date %s", i, tokens[i]);
strcpy(first_info.main[count].date,tokens[i]);
}
}
}
for(i = 0; tokens[i] != NULL; i++)
free(tokens[i]);
free(tokens);
count++;
lcount++;
}
for(i=0; i < count; i++) {
printf("%d %s %s", i,first_info.main[i].time, first_info.main[i].date);
}
i = 0;
fclose(data_txt);
// start db2cfg2
read = 0;
while (fgets(line2,100,dbm_txt)!=NULL)
{
trim(line2);
strcpy(second_info.db,"ccmlmd");
// printf("other %s",second_info.db);
if ((strlen(line2) > 1)&&(read!=0)){
mcount++;
tokens = split(line2, delim);
for(i = 0; tokens[i] != NULL; i++) {
if (i==0){
if (tokens[i]!=NULL){
// printf("%02d: time %s ", i, tokens[i]);
strcpy(second_info.other[cnt].time,tokens[i]);
}
}
if (i==1){
if(tokens[i]!=NULL){
// printf("%02d: date %s", i, tokens[i]);
strcpy(second_info.other[cnt].date,tokens[i]);
}
}
}
for(i = 0; tokens[i] != NULL; i++)
free(tokens[i]);
free(tokens);
cnt++;
} // add for(j=0 ;j<=cnt
j = 0;
for(j=0; j < cnt; j++) {
printf("%d %s %s", j,second_info.other[j].time,second_info.other[j].date);
}
fclose(dbm_txt);
return 0;
exit(0);
}
strcpy(first_info.main[count].time,tokens[i]);
> 2_ARRAY *other;
Why do you persist with this, when it's plainly wrong.
Rename it to ARRAY2
Or something even more descriptive.
Yes i must have missed it when I substituted the array names...
could you please substitute 2_ARRAY as ARR2
No, you do it in YOUR code, then tell us what happened.
still getting the
"test.c", line 136: syntax error before or at: *
Funny, because line 136 in your code appears to be:
But there isn't a "*" in the line at all.Code:j = 0;
for(j=0; j < cnt; j++) {
printf("%d %s %s", j,second_info.other[j].time,second_info.other[j].date);
Are you posting errors belonging to another bit of code?
--
Mats
Can you confirm if this line is correct?
strcpy(first_info.main[count].time,tokens[i]);
It depends on what you mean by "correct". The line is syntactically and semantically correct, but I would still expect the program to blow up at this point, since I don't see anywhere where you actually make that main pointer point to anything in particular, let alone an actual array of things.
(And I assume that you have fixed the typo of "structn" in your code?
Can you help me with pointing the pointer
I am not sure where to initialize the pointer.
The key word you are looking for is "malloc".
yep got it...its working....thank you.