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Checking the return value like this will cause you never to hit the eof inside the body of the loop, like the other one, instead of in the condition. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Reading from file using fgets Ask Question.

Asked 9 years, 10 months ago. Active 3 years, 7 months ago. Viewed 86k times. I am reading from file of format 1 32 43 23 32 43 43 54 2 Here is my code snippet. How to solve this problem? Alejandro Galera 2, 3 3 gold badges 20 20 silver badges 35 35 bronze badges. Kraken Kraken Post your full actual code, this shouldn't even compile. Add a comment.

If str or stream is a null pointer, or numChars is less than or equal to zero, this function invokes the invalid parameter handler, as described in Parameter Validation. The fgets function reads a string from the input stream argument and stores it in str. The result stored in str is appended with a null character. The newline character, if read, is included in the string.

By default, this function's global state is scoped to the application. To change this, see Global state in the CRT. For additional compatibility information, see Compatibility. In lines , if statement is used to test the value of fp. If it is NULL , printf statement prints the error message and program terminates.

Otherwise, the program continues with the statement following the if statement. In lines , a while loop is used to read the contents of the myfile2. Here is how while loop works:. The function fgets is called with an argument of 30, so it reads 29 characters from the file, stores them in the array str by appending null character at the end. Then the puts function is called to display the contents of the str. This is the reason why newline is printed after each iteration.



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