C Programming - Input / Output - Discussion
Discussion Forum : Input / Output - Point Out Errors (Q.No. 3)
3.
Point out the error in the program?
#include<stdio.h>
int main()
{
FILE *fp;
fp=fopen("trial", "r");
fseek(fp, "20", SEEK_SET);
fclose(fp);
return 0;
}
Answer: Option
Explanation:
Instead of "20" use 20L since fseek() need a long offset value.
Discussion:
13 comments Page 2 of 2.
CompeQ said:
7 years ago
fseek(fp, "20", SEEK_SET);
The correct answer should be: Invalid conversion from const char* to long int.
The correct answer should be: Invalid conversion from const char* to long int.
Vishal Babasaheb rahikar said:
7 years ago
Syntax for feel is;
fseek(file*stream,long offset value,int whence);
Here while providing offset value provide as 20L not 20 ,3rd argument have 3 macros SEEK_SET,SEEK_CUR,SEEK_END.
SEEK_SET means character seeking starts from the beginning of file, SEEK_CUR means starts seeking from last accessed word and SEEK_END means starts from end towards the beginning.
fseek(file*stream,long offset value,int whence);
Here while providing offset value provide as 20L not 20 ,3rd argument have 3 macros SEEK_SET,SEEK_CUR,SEEK_END.
SEEK_SET means character seeking starts from the beginning of file, SEEK_CUR means starts seeking from last accessed word and SEEK_END means starts from end towards the beginning.
(1)
G.sai nikhitha said:
5 years ago
What is the meaning of
fseek(fp,-2,SEEK_CUR);
fseek(fp,-2,SEEK_CUR);
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