CODEWITHSUNDEEP
c
tadasrilanka
tadasrilanka

Reputation: 3

How can I skip a value and go to the next one in fscanf(), and how can I fscanf() a specific type

How can I skip a value and go to the next one in fscanf()? For example I have the following data in my input file:

11112222
3.95
4
22.5

What I should do in order to scan the second value? (I want to skip 11112222 to scan 3.95)

And one more thing: if I want to fscanf() a specific data type, how can I do that? (Ex: I want to scan double value and skip the int value.)

Upvotes: 0

Views: 223

Answers (2)

Chris Dodd
Chris Dodd

Reputation: 126378

You can use a * modifier to scan a value and throw it away rather than storing it. For example:

if (scanf("%*d%lf", &var) != 1)
    …process input error…

will read the first two lines of your input file and store the value from the second into the double variable var

Upvotes: 4

Abhi
Abhi

Reputation: 744

int fun() {
 int unusedvar;
 float value;
 FILE *fp=fopen("yourfilename","r");
 fscanf(fp,"%d%f",&unusedvar,&value);
 return 0;
}

Aint that simple?

Upvotes: 0

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