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Questions tagged [eof]

End of file (commonly abbreviated EOF) is a condition in a computer operating system where no more data can be read from a data source.

From Wikipedia:

End of file (commonly abbreviated EOF) is a condition in a computer operating system where no more data can be read from a data source. The data source is usually called a file or stream.

EOF is also a macro defined in the <stdio.h> header of the C standard library. This macro:

expands to an integer constant expression, with type int and a negative value, that is returned by several functions to indicate end-of-file, that is, no more input from a stream;

For more information:

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Why is “while( !feof(file) )” always wrong?

What is wrong with using feof() to control a read loop? For example: #include #include int main(int argc, char **argv) { char *path = "stdin"; FILE *fp = argc > 1 ? fopen(path=argv[1], "r") : stdin; if( fp == NULL…
William Pursell
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Why is it recommended to have empty line in the end of a source file?

Some code style tools recommend this and I remember seeing some unix command line tools warning about missing empty line. What is the reasoning for having an extra empty line?
Petteri H
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What is the perfect counterpart in Python for "while not EOF"

To read some text file, in C or Pascal, I always use the following snippets to read the data until EOF: while not eof do begin readline(a); do_something; end; Thus, I wonder how can I do this simple and fast in Python?
Allen Koo
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read.csv warning 'EOF within quoted string' prevents complete reading of file

I have a CSV file (24.1 MB) that I cannot fully read into my R session. When I open the file in a spreadsheet program I can see 112,544 rows. When I read it into R with read.csv I only get 56,952 rows and this warning: cit <-…
Ben
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Why does the IPython REPL tell me "SyntaxError: unexpected EOF while parsing" as I input the code?

I'm getting an error while running this part of the code. I tried some of the existing solutions, but none of them helped. elec_and_weather = pd.read_csv(r'C:\HOUR.csv', parse_dates=True,index_col=0) # Add historic DEMAND to each X vector for i in…
Akash Joshi
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How to find out whether a file is at its `eof`?

fp = open("a.txt") #do many things with fp c = fp.read() if c is None: print 'fp is at the eof' Besides the above method, any other way to find out whether is fp is already at the eof?
Alcott
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Python unexpected EOF while parsing

Here's my python code. Could someone show me what's wrong with it. while 1: date=input("Example: March 21 | What is the date? ") if date=="June 21": sd="23.5° North Latitude" if date=="March 21" | date=="September 21": …
Web_Designer
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End of File (EOF) in C

I am currently reading the book C Programming Language by Ritchie & Kernighan. And I am pretty confused about the usage of EOF in the getchar() function. First, I want to know why the value of EOF is -1 and why the value of getchar()!=EOF is 0.…
newbie
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How to read user input until EOF?

My current code reads user input until line-break. But I am trying to change that to a format, where the user can write input until strg+d to end his input. I currently do it like this: input = raw_input ("Input: ") But how can I change that to an…
Saphire
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Go failing - expected 'package', found 'EOF'

I've been having a hard time trying to execute a simple golang program in a virtual machine powered by vagrant. These are the relevant fields of my go…
ThisIsErico
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Representing EOF in C code?

The newline character is represented by "\n" in C code. Is there an equivalent for the end-of-file (EOF) character?
static_rtti
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"/usr/bin/python^M: bad interpreter"

Cannot figure out, where to change EOF in PyCharm. My scripts start with : #!/usr/bin/python # -*- coding: utf-8 -*- It outputs something like this when I try to run it like an executable (chmode +x) : -bash: ./main.py: /usr/bin/python^M: bad…
woozly
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How to use `while read` (Bash) to read the last line in a file if there’s no newline at the end of the file?

Let’s say I have the following Bash script: while read SCRIPT_SOURCE_LINE; do echo "$SCRIPT_SOURCE_LINE" done I noticed that for files without a newline at the end, this will effectively skip the last line. I’ve searched around for a solution and…
Mathias Bynens
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How to simulate an EOF?

I am currently reading K&R's book and typing in the examples from the first section, and there are a couple of examples such as this: while((c = getchar()) != EOF) { //do something } I am testing these examples on a Windows box and thus running…
Andreas Grech
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