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ctype.h.0p (3775B)

    

  1. '\" et
  2. .TH ctype.h "0P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
  3. .\"
  4. .SH PROLOG
  5. This manual page is part of the POSIX Programmer's Manual.
  6. The Linux implementation of this interface may differ (consult
  7. the corresponding Linux manual page for details of Linux behavior),
  8. or the interface may not be implemented on Linux.
  9. .\"
  10. .SH NAME
  11. ctype.h
  12. \(em character types
  13. .SH SYNOPSIS
  14. .LP
  15. .nf
  16. #include <ctype.h>
  17. .fi
  18. .SH DESCRIPTION
  19. Some of the functionality described on this reference page extends the
  20. ISO\ C standard. Applications shall define the appropriate feature test macro
  21. (see the System Interfaces volume of POSIX.1\(hy2017,
  22. .IR "Section 2.2" ", " "The Compilation Environment")
  23. to enable the visibility of these symbols in this header.
  24. .P
  25. The
  26. .IR <ctype.h> 
  27. header shall define the
  28. .BR locale_t
  29. type as described in
  30. .IR <locale.h> ,
  31. representing a locale object.
  32. .P
  33. The following shall be declared as functions and may also be defined as
  34. macros. Function prototypes shall be provided for use with ISO\ C standard
  35. compilers.
  36. .sp
  37. .RS 4
  38. .nf
  40. int   isalnum(int);
  41. int   isalnum_l(int, locale_t);
  42. int   isalpha(int);
  43. int   isalpha_l(int, locale_t);
  44. int   isascii(int);
  45. int   isblank(int);
  46. int   isblank_l(int, locale_t);
  47. int   iscntrl(int);
  48. int   iscntrl_l(int, locale_t);
  49. int   isdigit(int);
  50. int   isdigit_l(int, locale_t);
  51. int   isgraph(int);
  52. int   isgraph_l(int, locale_t);
  53. int   islower(int);
  54. int   islower_l(int, locale_t);
  55. int   isprint(int);
  56. int   isprint_l(int, locale_t);
  57. int   ispunct(int);
  58. int   ispunct_l(int, locale_t);
  59. int   isspace(int);
  60. int   isspace_l(int, locale_t);
  61. int   isupper(int);
  62. int   isupper_l(int, locale_t);
  63. int   isxdigit(int);
  64. int   isxdigit_l(int, locale_t);
  65. int   toascii(int);
  66. int   tolower(int);
  67. int   tolower_l(int, locale_t);
  68. int   toupper(int);
  69. int   toupper_l(int, locale_t);
  70. .fi
  71. .P
  72. .RE
  73. .P
  74. The
  75. .IR <ctype.h> 
  76. header shall define the following as macros:
  77. .sp
  78. .RS 4
  79. .nf
  81. int   _toupper(int);
  82. int   _tolower(int);
  83. .fi
  84. .P
  85. .RE
  86. .LP
  87. .IR "The following sections are informative."
  88. .SH "APPLICATION USAGE"
  89. None.
  90. .SH RATIONALE
  91. None.
  92. .SH "FUTURE DIRECTIONS"
  93. None.
  94. .SH "SEE ALSO"
  95. .IR "\fB<locale.h>\fP"
  96. .P
  97. The System Interfaces volume of POSIX.1\(hy2017,
  98. .IR "Section 2.2" ", " "The Compilation Environment",
  99. .IR "\fIisalnum\fR\^(\|)",
  100. .IR "\fIisalpha\fR\^(\|)",
  101. .IR "\fIisascii\fR\^(\|)",
  102. .IR "\fIisblank\fR\^(\|)",
  103. .IR "\fIiscntrl\fR\^(\|)",
  104. .IR "\fIisdigit\fR\^(\|)",
  105. .IR "\fIisgraph\fR\^(\|)",
  106. .IR "\fIislower\fR\^(\|)",
  107. .IR "\fIisprint\fR\^(\|)",
  108. .IR "\fIispunct\fR\^(\|)",
  109. .IR "\fIisspace\fR\^(\|)",
  110. .IR "\fIisupper\fR\^(\|)",
  111. .IR "\fIisxdigit\fR\^(\|)",
  112. .IR "\fImblen\fR\^(\|)",
  113. .IR "\fImbstowcs\fR\^(\|)",
  114. .IR "\fImbtowc\fR\^(\|)",
  115. .IR "\fIsetlocale\fR\^(\|)",
  116. .IR "\fItoascii\fR\^(\|)",
  117. .IR "\fItolower\fR\^(\|)",
  118. .IR "\fI_tolower\fR\^(\|)",
  119. .IR "\fItoupper\fR\^(\|)",
  120. .IR "\fI_toupper\fR\^(\|)",
  121. .IR "\fIwcstombs\fR\^(\|)",
  122. .IR "\fIwctomb\fR\^(\|)"
  123. .\"
  124. .SH COPYRIGHT
  125. Portions of this text are reprinted and reproduced in electronic form
  126. from IEEE Std 1003.1-2017, Standard for Information Technology
  127. -- Portable Operating System Interface (POSIX), The Open Group Base
  128. Specifications Issue 7, 2018 Edition,
  129. Copyright (C) 2018 by the Institute of
  130. Electrical and Electronics Engineers, Inc and The Open Group.
  131. In the event of any discrepancy between this version and the original IEEE and
  132. The Open Group Standard, the original IEEE and The Open Group Standard
  133. is the referee document. The original Standard can be obtained online at
  134. http://www.opengroup.org/unix/online.html .
  135. .PP
  136. Any typographical or formatting errors that appear
  137. in this page are most likely
  138. to have been introduced during the conversion of the source files to
  139. man page format. To report such errors, see
  140. https://www.kernel.org/doc/man-pages/reporting_bugs.html .