What does the question mark character (‘?’) mean?

? is the first symbol of the ?: ternary operator.

a = (b==0) ? 1 : 0;

a will have the value 1 if b is equal to 0, and 0 otherwise.

Related Posts:

  1. what is Segmentation fault (core dumped)? [duplicate]
  2. What causes a segmentation fault (core dump) to occur in C?
  3. uint8_t vs unsigned char
  4. How to use symbols of extended ASCII table in C?
  5. What is the difference between ++i and i++?
  6. Using boolean values in C
  7. What does “collect2: error: ld returned 1 exit status” mean?
  8. How to convert an int to string in C?
  9. typedef struct vs struct definitions [duplicate]
  10. How to print in C
  11. What can be the reasons of connection refused errors?
  12. typedef struct vs struct definitions [duplicate]
  13. What is newline character — ‘\n’
  14. Why does ENOENT mean “No such file or directory”?
  15. Cannot figure out how to use getchar(); in C
  16. makefile:4: *** missing separator. Stop
  17. c stack smashing detected
  18. Undefined reference to pthread_create
  19. Convert char to int in C and C++
  20. What is Bit Masking?
  21. Strings and character with printf
  22. What are .a and .so files?
  23. So what does “return 0” actually mean?
  24. Why is the gets function so dangerous that it should not be used?
  25. warning: assignment makes integer from pointer without a cast
  26. Why use bzero over memset?
  27. What does “collect2: error: ld returned 1 exit status” mean?
  28. Warning comparison between pointer and integer
  29. Using ssize_t vs int
  30. Why a warning of “control reaches end of non-void function” for the main function?
  31. How do I use extern to share variables between source files?
  32. Cannot assign requested address – possible causes?
  33. error: called object is not a function or function pointer
  34. munmap_chunk(): invalid pointer
  35. C read file line by line
  36. warning: incompatible implicit declaration of built-in function ‘xyz’
  37. strcpy vs strdup
  38. Warning comparison between pointer and integer in C language
  39. No Symbol Table using GDB on Compiled Programs
  40. What is char ** in C?
  41. Difference between scanf() and fgets()
  42. What is a bus error? Is it different from a segmentation fault?
  43. Get the current time in C
  44. where does stdio.o live in linux machine?
  45. Get text from user input using C
  46. Using Dynamic Memory allocation for arrays
  47. How to trigger SIGUSR1 and SIGUSR2?
  48. How do I lowercase a string in C?
  49. warning: expression result unused
  50. conflicting types error when compiling c program using gcc
  51. Get the current time in C
  52. error: indirection requires pointer operand (‘int’ invalid)
  53. What is a file with extension .a?
  54. What is the difference between exit(0) and exit(1) in C?
  55. What does “%.*s” mean in printf?
  56. error: indirection requires pointer operand (‘int’ invalid)
  57. Finding the length of a Character Array in C
  58. Return char[]/string from a function
  59. Valgrind: Invalid read of size 1
  60. How to print a char array in C through printf?
  61. How to clear all the elements of array in C?
  62. Zero an array in C code
  63. Excess elements in char array initializer error
  64. Encrypt with private key and decrypt with public key
  65. strcmp giving segmentation fault
  66. What does “pointer being freed was not allocated” mean exactly?
  67. strcmp not working
  68. How to use timer in C?
  69. C char* to int conversion
  70. What is the difference between stdin and STDIN_FILENO?
  71. Allocating string with malloc
  72. How to simply convert a float to a string in c?
  73. What is the difference between char array and char pointer in C?
  74. hash function for string
  75. What happens during a “relocation has invalid symbol index” error?
  76. Does C have a string type?
  77. What are .axf files?
  78. Error: “Access not within mapped region at address” (Valgrind)
  79. printf format specifiers for uint32_t and size_t
  80. How to convert string to float?
  81. What is an simple example of copy_from_user
  82. What is `S_ISREG()`, and what does it do?
  83. typedef struct pointer definition
  84. How does the fscanf function work?
  85. Math constant PI value in C
  86. Return a `struct` from a function in C
  87. C: scanf to array
  88. The code does not execute properly. Try to figure out why
  89. What are “prototypes” in a C program?
  90. ld.exe: cannot open output file … : Permission denied
  91. How to read from input until newline is found using scanf()?
  92. getline() vs. fgets(): Control memory allocation
  93. What’s the difference between “mod” and “remainder”?
  94. What is char ** in C? [duplicate]
  95. undefined reference to `std::ios_base::Init::Init()’
  96. previous declaration of ‘function’ was here in C [duplicate]
  97. segmentation fault using scanf
  98. Segmentation fault- strcat
  99. How to Compare 2 Character Arrays [duplicate]
  100. segmentation fault with strcpy [duplicate]

Leave a Comment