getc() vs fgetc() – What are the major differences?

From the Advanced Programming in Unix Environment:

…

The difference between getc and fgetc is that getc can be implemented as a macro, whereas fgetc cannot be implemented as a macro. This means three things:

  • The argument to getc should not be an expression with side effects.
  • Since fgetc is guaranteed to be a function, we can take its address. This allows us to pass the address of fgetc as an argument to another function.
  • Calls to fgetc probably take longer than calls to getc, as it usually takes more time to call a function.

…

Related Posts:

  1. How to initialize array to 0 in C?
  2. How to do scanf for single char in C
  3. Sign extend a nine-bit number in C
  4. Break statement not within loop or switch in C
  5. How to properly malloc for array of struct in C
  6. Cache Simulator in C
  7. make: Nothing to be done for `all’
  8. Data argument not used by format strings in C
  9. expected expression before ‘{‘ token
  10. Setting std=c99 flag in GCC
  11. C Vector/ArrayList/LinkedList
  12. Convert char array to a int number in C
  13. Bind failed: Address already in use
  14. What is the difference between %f and %lf in C?
  15. warning: initializer element is not computable at load time
  16. What is stdin in C language?
  17. How to pass 2D array (matrix) in a function in C?
  18. error: ‘for’ loop initial declarations are only allowed in C99 mode [duplicate]
  19. c – warning: implicit declaration of function ‘printf’
  20. Flushing buffers in C
  21. Undefined Reference issues using Semaphores
  22. What is time(NULL) in C?
  23. How to compile makefile using MinGW?
  24. Portable way to check if directory exists [Windows/Linux, C]
  25. too many arguments for format [-Wformat-extra-args]
  26. Incorrect checksum for freed object on malloc
  27. How to copy a char array in C?
  28. Simple way to check if a string contains another string in C?
  29. What does “request for member ‘*******’ in something not a structure or union” mean?
  30. cast to pointer from integer of different size, pthread code
  31. Segmentation fault (core dumped) due to fgets – I think
  32. What does “request for member ‘*******’ in something not a structure or union” mean?
  33. Unknown ending signal when using debugger gdb
  34. Valgrind: invalid read of size 4 -> sigsegv, works fine without valgrind and in visual studio
  35. How to convert integer to char in C?
  36. Is there a good Valgrind substitute for Windows?
  37. Where to find the complete definition of off_t type?
  38. struct has no member named
  39. Difference between “move” and “li” in MIPS assembly language
  40. printf not printing to screen
  41. Initializing array of structures
  42. Still Reachable Leak detected by Valgrind
  43. What is the difference between array and enum in C ?
  44. How can one see content of stack with GDB?
  45. What is signed integer overflow?
  46. What does the term “empty loop” refer to exactly in C and C++?
  47. When to use const char * and when to use const char []
  48. What do numbers using 0x notation mean?
  49. What integer hash function are good that accepts an integer hash key?
  50. Can I create an Array of Char pointers in C?
  51. Does stack grow upward or downward?
  52. Convert Little Endian to Big Endian
  53. X86 assembly – Handling the IDIV instruction
  54. error C2371: ‘functionname’ redefinition: different basic types
  55. Pause screen at program completion in C
  56. How to write to a file using open() and printf()?
  57. note: previous implicit declaration of ‘point_forward’ was here
  58. What exactly is meant by “de-referencing a NULL pointer”?
  59. Difference between fgets and fscanf?
  60. Can’t understand the working of getint() in C as per K&R
  61. Structure padding and packing
  62. Lua – Number to string behaviour
  63. Reading in double values with scanf in c
  64. Realloc Invalid Pointer in C
  65. What tools are there for functional programming in C?
  66. typedef fixed length array
  67. “-bash: gcc: command not found” using cygwin when compiling c?
  68. In C, what exactly happens when you pass a NULL pointer to strcmp()?
  69. How to format strings using printf() to get equal length in the output
  70. In C, what exactly happens when you pass a NULL pointer to strcmp()?
  71. What are the differences between if, else, and else if? 
  72. Example of waitpid() in use?
  73. strtok segmentation fault
  74. Invalid write of size 1
  75. How to solve static declaration follows non-static declaration in GCC C code?
  76. realloc(): invalid next size when reallocating to make space for strcat on char *
  77. Constructor for structs in C
  78. C Error: declaration shadows a local variable — Won’t let me repeatedly replace the value of my float variable
  79. Can a function return two values?
  80. C: warning: excess elements in array initializer; near initialization for ‘xxx’ ; expects ‘char *’, but has type ‘int’
  81. MIPS to C Translation
  82. Pointer to 2D arrays in C
  83. How to know what the ‘errno’ means?
  84. Printf was not declared in this scope
  85. How to free memory from char array in C
  86. Can I get Unix’s pthread.h to compile in Windows?
  87. Initializing 2D char array in C
  88. Pointer to a string in C?
  89. Process exited with return value 3221225477
  90. gdb: No symbol “i” in current context
  91. Cross Platform C library for GUI Apps?
  92. Implicit function declarations in C
  93. Pre increment vs Post increment in array
  94. Convert long long to string in C?
  95. %p Format specifier in c
  96. how to stop a loop arduino
  97. How to normalize a mantissa
  98. “Nothing to be done for makefile” message
  99. Convert Char to String in C
  100. What is the difference between signed and unsigned int

Leave a Comment

error code: 523