Q. What is the purpose of the function?
int ferror(FILE *fp)

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Q. stderr is similar to?

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Q. What happens when we use?
fprintf(stderr, “error: could not open filen”);

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Q. The syntax of fgets is char *fgets(char *line, int maxline, FILE *fp). Which is true for fgets.fgets ?

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Q. fputs function writes a string to a file that only ends with a newline

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Q. fputs adds newline character

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Q. puts function adds newline character

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Q. gets function checks overflow run

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Q. puts does the following when it writes to stdout

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Q. What is the size of array “line” used in fgets(line, maxline, *fp) function?

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Q. The following function

int fputs(char *line, FILE *fp)
returns EOF when:

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Q. Which function has a return type as char pointer?

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Q. Which of the following is the right declaration for fgets inside the library?

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Q. Which is true about fputs.fputs returns?

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Q. gets and puts operate on

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Q. gets does the following when it reads from stdin

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Q. Strcat function adds null character

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Q. Which of the following library function is not case-sensitive?

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Q. The following expression can be substituted for

if (isalpha(c) && isdigit(c))

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Q. Which of the following will return a non-zero value when checked with isspace(c)?

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