error: unknown type name ‘bool’

C90 does not support the boolean data type.

C99 does include it with this include:

#include <stdbool.h>

Related Posts:

  1. Compiler Error “void value not ignored as it ought to be” in C programming [duplicate]
  2. Convert char to int in C and C++
  3. C compiler for Windows?
  4. Why the range of int is -32768 to 32767?
  5. max value of integer
  6. what is stack smashing (C)?
  7. warning: incompatible implicit declaration of built-in function ‘xyz’
  8. Fatal error: iostream: No such file or directory in compiling C program using GCC
  9. conflicting types error when compiling c program using gcc
  10. What is a file with extension .a?
  11. gcc/g++: “No such file or directory”
  12. c array – warning: format not a string literal
  13. (.text+0x20): undefined reference to `main’ and undefined reference to function
  14. difference between and
  15. Warning/error “function declaration isn’t a prototype”
  16. Error: initializer element is not computable at load time
  17. warning: initializer element is not computable at load time
  18. Debug vs Release in CMake
  19. Debug vs Release in CMake
  20. Compiling a .C file: Undefined symbols for architecture x86_64
  21. Removing trailing newline character from fgets() input
  22. gcc: undefined reference to
  23. Why do I get “cast from pointer to integer of different size” error?
  24. What happens during a “relocation has invalid symbol index” error?
  25. Valgrind Invalid free() / delete / delete[] / realloc() in C
  26. What does this GCC error “… relocation truncated to fit…” mean?
  27. Undefined reference to main – collect2: ld returned 1 exit status
  28. C’s printf and fprintf(stdout,) are not printing
  29. Where is the header file on Linux? Why can’t I find ?
  30. How do I compile the asm generated by GCC?
  31. gcc -g :what will happen
  32. C Unknown type name ‘my_structure’
  33. Representing EOF in C code?
  34. How to display hexadecimal numbers in C?
  35. cc1.exe System Error – libwinpthread-1.dll missing – But it isn’t
  36. Fatal error: iostream: No such file or directory in compiling C program using GCC
  37. typedef fixed length array
  38. How to solve static declaration follows non-static declaration in GCC C code?
  39. Linker error: “linker input file unused because linking not done”, undefined reference to a function in that file
  40. GCC: Array type has incomplete element type
  41. Example of realpath function in C
  42. How to compile C program on command line using MinGW?
  43. Compiler gcc:error; no such file or directory
  44. How to print a int64_t type in C
  45. Handling file renames in Git
  46. PermissionError: [Errno 13] in Python
  47. Why are there two ways to unstage a file in Git?
  48. Stack smashing detected
  49. Why am I getting “void value not ignored as it ought to be”?
  50. Pointer Arithmetic
  51. Openssl : error “self signed certificate in certificate chain”
  52. how to use uint64_t in C [duplicate]
  53. Python Key Error=0 – Can’t find Dict error in code
  54. How do I solve the following errors: “Undefined reference to WinMain”, “[Error] Id returned 1 exit status”?
  55. Warning comparison between pointer and integer
  56. What is use of c_str function In c++
  57. How do I properly compare strings in C?
  58. Connect: Socket operation on non-socket
  59. How to correctly use the extern keyword in C
  60. What is a callback URL in relation to an API?
  61. How do we check if a pointer is NULL pointer?
  62. how to use wait in C
  63. Why does the arrow (->) operator in C exist?
  64. Why do I get clang: error: linker command failed with exit code 1?
  65. Should I learn C before learning C++?
  66. How to convert integer to char in C?
  67. Visual Studio debugger error: Unable to start program Specified file cannot be found
  68. Program received signal SIGPIPE, Broken pipe
  69. How to read from stdin with fgets()?
  70. How to make an array with a dynamic size? General usage of dynamic arrays (maybe pointers too)?
  71. Operand type clash: int is incompatible with date + The INSERT statement conflicted with the FOREIGN KEY constraint
  72. org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when ‘hibernate.dialect’ not set
  73. java.io.IOException: Broken pipe
  74. Does C have a “foreach” loop construct?
  75. How do I get monitor resolution in Python?
  76. Data argument not used by format strings in C
  77. SQL array flattening: Why doesn’t CROSS JOIN UNNEST join every nested value with every row?
  78. Function to calculate R2 (R-squared) in R
  79. Missing files, DirectX SDK (d3dx9.lib, d3dx9.h)
  80. Segmentation fault (core dumped) due to fgets – I think
  81. how to center form using bootstrap 4
  82. What does “request for member ‘*******’ in something not a structure or union” mean?
  83. Unknown ending signal when using debugger gdb
  84. Valgrind: invalid read of size 4 -> sigsegv, works fine without valgrind and in visual studio
  85. How to implement OnFragmentInteractionListener
  86. “Multiple definition”, “first defined here” errors
  87. Char Comparison in C
  88. Is there a good Valgrind substitute for Windows?
  89. Difference between “move” and “li” in MIPS assembly language
  90. How to determine why a Greasemonkey script is not running [duplicate]
  91. What is the difference between %g and %f in C?
  92. youtube iframe api parameter rel=0 doesn’t work
  93. How to specify the download location with wget?
  94. What is the source of the data for the ProgramFiles, ProgramW6432Dir, ProgramFilesDir (x86), CommonProgramFiles environment variables?
  95. Structure padding and packing
  96. In the Fibonacci sequence, is fib(0) 0 or 1 ?
  97. In C, what exactly happens when you pass a NULL pointer to strcmp()?
  98. Source Tree doesn’t launch after installation
  99. Search database with WPDB using a php variable
  100. Change css for certain user roles

Leave a Comment

error code: 523