Representing EOF in C code?

EOF is not a character (in most modern operating systems). It is simply a condition that applies to a file stream when the end of the stream is reached. The confusion arises because a user may signal EOF for console input by typing a special character (e.g Control-D in Unix, Linux, et al), but this character is not seen by the running program, it is caught by the operating system which in turn signals EOF to the process.

Note: in some very old operating systems EOF was a character, e.g. Control-Z in CP/M, but this was a crude hack to avoid the overhead of maintaining actual file lengths in file system directories.

Related Posts:

  1. How to use symbols of extended ASCII table in C?
  2. Compiler Error “void value not ignored as it ought to be” in C programming [duplicate]
  3. C compiler for Windows?
  4. Why the range of int is -32768 to 32767?
  5. max value of integer
  6. Invisible characters – ASCII
  7. Convert an int to ASCII character
  8. What is EOF in the C programming language?
  9. What is EOF in the C programming language?
  10. Output single character in C
  11. c array – warning: format not a string literal
  12. Getting The ASCII Value of a character in a C# string
  13. How to use EOF to run through a text file in C?
  14. Valgrind Invalid free() / delete / delete[] / realloc() in C
  15. C’s printf and fprintf(stdout,) are not printing
  16. error: unknown type name ‘bool’
  17. How do you read scanf until EOF in C?
  18. How to display hexadecimal numbers in C?
  19. Reaching EOF with fgets
  20. What is a vertical tab?
  21. Example of realpath function in C
  22. How to convert integers to characters in C?
  23. How to print a int64_t type in C
  24. What is a segmentation fault?
  25. How can I convert MP3 file to a Base64 encoded string? [closed]
  26. What is an unsigned char?
  27. What is a Memory Heap?
  28. 403 Forbidden vs 401 Unauthorized HTTP responses
  29. Advanced AREL or just Rails Query for has_many through search by association
  30. char *array and char array[]
  31. “If not” condition statement in python
  32. Get a substring of a char*
  33. How can I sort a dictionary by key?
  34. What does ERR_SPDY_PROTOCOL_ERROR mean in nginx?
  35. What causes the Broken Pipe Error?
  36. what is stack smashing (C)?
  37. “Initializer element is not constant” in C
  38. How do you do exponentiation in C?
  39. How do I convert a list of ascii values to a string in python?
  40. Time Complexity of Prims Algorithm?
  41. Printing long int value in C
  42. Ping – Request timed out
  43. How do I remove version tracking from a project cloned from git?
  44. Undefined reference to pow( ) in C, despite including math.h [duplicate]
  45. The difference between stdout and STDOUT_FILENO
  46. Convert Python program to C/C++ code?
  47. What’s the difference between & and && in MATLAB?
  48. azure error 502 – Web server received an invalid response while acting as a gateway or proxy server
  49. What does ** do in C language?
  50. What is a Ray ID (Cloudflare)?
  51. Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
  52. Creating a new directory in C
  53. How do I get a list of built-in data sets in R?
  54. Alternative to ui-grid(doesn’t support angular2/4)
  55. gcc/g++: “No such file or directory”
  56. Tool for drawing parse trees?
  57. Expected declaration specifier error in function
  58. Multiple definition of … linker error
  59. Does sizeof return the number of bytes or the number of octets of a type in C?
  60. Passing an array by reference in C?
  61. What does “Permission denied” “Id returned 1 exit status” mean?
  62. Memory Clobbering Error
  63. R dates “origin” must be supplied
  64. How to pass 2D array (matrix) in a function in C?
  65. malloc: *** error: incorrect checksum for freed object – object was probably modified after being freed
  66. What is the difference between object-oriented languages and non object-oriented languages?
  67. Check if input is integer type in C
  68. Iterate through a C array
  69. Meaning of Exit Code 11 in C?
  70. How to one hot encode several categorical variables in R
  71. struct has no member named
  72. slideToggle JQuery right to left
  73. printf not printing to screen
  74. What does this GCC error “… relocation truncated to fit…” mean?
  75. Exception in thread “main” java.lang.reflect.InvocationTargetException
  76. “webxml attribute is required” error in Maven
  77. How can I change the color of my prompt in zsh (different from normal text)?
  78. mkdir c++ function
  79. reversing list in Lisp
  80. How do I find the time complexity (Big O) of while loop?
  81. Why do we use NULL in strtok()?
  82. Java: Not a statement
  83. Passing a hexadecimal value into a module in Verilog
  84. Example of waitpid() in use?
  85. Can a function return two values?
  86. C: warning: excess elements in array initializer; near initialization for ‘xxx’ ; expects ‘char *’, but has type ‘int’
  87. How to know what the ‘errno’ means?
  88. Printf was not declared in this scope
  89. How to free memory from char array in C
  90. Can I get Unix’s pthread.h to compile in Windows?
  91. Initializing 2D char array in C
  92. Process exited with return value 3221225477
  93. How can I trash multiple posts at once from the front end?
  94. Rendering javascript in render_callback php Code
  95. Customized Essay Writing Service
  96. Software vs hardware RAID performance and cache usage
  97. How do high traffic sites service more than 65535 TCP connections?
  98. Using variables in Apache config files to reduce duplication?
  99. How to unify package installation tasks in ansible?
  100. Private IP address in public DNS

Leave a Comment

error code: 523