Thread: issue while printing

I've already posted this code in my former posts, but the issue here is different, I want to print the name that's given in the input.txt, also supposing I can't change the array's name size as its size stable as 4, but in the sscanf that's would make a serious problem, can anybody suggest me away to
solve the problem? thanks in advance, and once again,
supposing that I cant change the size of the array that's
inculded in the struct.

Code:

#include <string.h>

Code:

#include <stdio.h>
#include<stdlib.h>
typedef struct
{
    char name[4];// the name of the document-in my case documt
}memIdentity;
memIdentity *Array[100]={0};
void Wikipedia_poll(char name[4], memIdentity *Array[100])
{
    int i=0;
    for(i=0; i<100; i++)
    {
        if (Array[i] == NULL)
        {
            Array[i]= (memIdentity*) malloc(sizeof(memIdentity));
            strcpy(Array[i]->name,name);
            printf("%s", Array[i]->name);
            Array[i]->size = size;
            break;
        }
    }
    return;
}
void print_result()
{
    int i=0;
    for (i=0; i<100; i++)
    {
        if (Array[i]!=NULL)
            printf("%s", Array[i]->name);
                        //here..the problem here is actually not printing the given name//
        if (Array[i]==NULL)
            printf("H");    
    }
}int main()
{    
    FILE *pToFile = fopen("C:/input.txt","r");
    char line[30];
    char name[4];
    int j=0;
    while( fgets( line, 30, pToFile )) 
    {
        if (strstr(line, "Cboard OP'S") == line)
                if (sscanf(line,"%*[^:]: %*s %4s %*s",name) =1)
         Wikipedia_poll(name);
        if (strstr(line, "print result") == line)
            print_result();
    }
    fclose(pToFile);
    return 0;
}

You have bigger problems than trying to print a name.

Code:

/*
main.c||In function 'Wikipedia_poll':|
main.c|19|error: 'memIdentity' has no member named 'size'|
main.c|19|error: 'size' undeclared (first use in this function)|
main.c|19|error: (Each undeclared identifier is reported only once|
main.c|19|error: for each function it appears in.)|
main.c||In function 'main':|
main.c|45|error: lvalue required as left operand of assignment|
main.c|46|error: too few arguments to function 'Wikipedia_poll'|
main.c|41|warning: unused variable 'j'|
||=== Build finished: 6 errors, 1 warnings ===|
*/

You also don't specify what is contained inside of "input.txt".

... I want to print the name that's given in the input.txt, also supposing I can't change the array's name size as its size stable as 4, but in the sscanf that's would make a serious problem ...

You are not describing your problem clearly. You say the array size is fixed, but how would this make "sscanf()" have a serious problem? Is the input longer than the array can hold? Are there unexpected characters in the input file? Another reason entirely? (See why it's important to give us as much information as you can?)

While we wait for a more descriptive explanation of the problem you're facing, I'll offer some general advice. Put this code aside for a moment, and create a new simple program that only handles this one specific task (successfully reading input from the text file, I suppose). If you can get this to work, then go back to your original program and incorporate that code. If you can't get the simple version to work, then post just that, and we can offer help more focused to the specific problem you're describing.

Originally Posted by vart

documt cannot be stored in the array

char name[4]

only

doc

So how can I let it prints docu? with four chars without changing the size of array's name

Originally Posted by Romyo2

So how can I let it prints docu? with four chars without changing the size of array's name

If you want to print this as a string, then the array can only hold "doc" as mentioned by Vart. The fourth element must be reserved for the null character '\0'.

If you want the array to hold "docu", then it cannot be printed as string, and you need to print each element of the array separately.

I'd also strongly suggest making a separate function that handles the string parsing. Trying to cram complicated string parsing into a single line of code is not a good idea in C.