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wctype.h.0p (5188B)

    

  1. '\" et
  2. .TH wctype.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. wctype.h
  12. \(em wide-character classification and mapping utilities
  13. .SH SYNOPSIS
  14. .LP
  15. .nf
  16. #include <wctype.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 <wctype.h> 
  27. header shall define the following types:
  28. .IP "\fBwint_t\fP" 12
  29. As described in
  30. .IR <wchar.h> .
  31. .IP "\fBwctrans_t\fP" 12
  32. A scalar type that can hold values which represent locale-specific
  33. character mappings.
  34. .IP "\fBwctype_t\fP" 12
  35. As described in
  36. .IR <wchar.h> .
  37. .P
  38. The
  39. .IR <wctype.h> 
  40. header shall define the
  41. .BR locale_t
  42. type as described in
  43. .IR <locale.h> .
  44. .P
  45. The
  46. .IR <wctype.h> 
  47. header shall define the following macro:
  48. .IP WEOF 12
  49. As described in
  50. .IR <wchar.h> .
  51. .P
  52. For all functions described in this header that accept an argument of
  53. type
  54. .BR wint_t ,
  55. the value is representable as a
  56. .BR wchar_t
  57. or equals the value of WEOF. If this argument has any other value, the
  58. behavior is undefined.
  59. .P
  60. The behavior of these functions shall be affected by the
  61. .IR LC_CTYPE
  62. category of the current locale.
  63. .P
  64. Inclusion of the
  65. .IR <wctype.h> 
  66. header may make visible all symbols from the headers
  67. .IR <ctype.h> ,
  68. .IR <stdarg.h> ,
  69. .IR <stddef.h> ,
  70. .IR <stdio.h> ,
  71. .IR <stdlib.h> ,
  72. .IR <string.h> ,
  73. .IR <time.h> ,
  74. and
  75. .IR <wchar.h> .
  76. .P
  77. The following shall be declared as functions and may also be defined as
  78. macros. Function prototypes shall be provided for use with ISO\ C standard
  79. compilers.
  80. .sp
  81. .RS 4
  82. .nf
  84. int       iswalnum(wint_t);
  85. int       iswalnum_l(wint_t, locale_t);
  86. int       iswalpha(wint_t);
  87. int       iswalpha_l(wint_t, locale_t);
  88. int       iswblank(wint_t);
  89. int       iswblank_l(wint_t, locale_t);
  90. int       iswcntrl(wint_t);
  91. int       iswcntrl_l(wint_t, locale_t);
  92. int       iswctype(wint_t, wctype_t);
  93. int       iswctype_l(wint_t, wctype_t, locale_t);
  94. int       iswdigit(wint_t);
  95. int       iswdigit_l(wint_t, locale_t);
  96. int       iswgraph(wint_t);
  97. int       iswgraph_l(wint_t, locale_t);
  98. int       iswlower(wint_t);
  99. int       iswlower_l(wint_t, locale_t);
  100. int       iswprint(wint_t);
  101. int       iswprint_l(wint_t, locale_t);
  102. int       iswpunct(wint_t);
  103. int       iswpunct_l(wint_t, locale_t);
  104. int       iswspace(wint_t);
  105. int       iswspace_l(wint_t, locale_t);
  106. int       iswupper(wint_t);
  107. int       iswupper_l(wint_t, locale_t);
  108. int       iswxdigit(wint_t);
  109. int       iswxdigit_l(wint_t, locale_t);
  110. wint_t    towctrans(wint_t, wctrans_t);
  111. wint_t    towctrans_l(wint_t, wctrans_t, locale_t);
  112. wint_t    towlower(wint_t);
  113. wint_t    towlower_l(wint_t, locale_t);
  114. wint_t    towupper(wint_t);
  115. wint_t    towupper_l(wint_t, locale_t);
  116. wctrans_t wctrans(const char *);
  117. wctrans_t wctrans_l(const char *, locale_t);
  118. wctype_t  wctype(const char *);
  119. wctype_t  wctype_l(const char *, locale_t);
  120. .fi
  121. .P
  122. .RE
  123. .LP
  124. .IR "The following sections are informative."
  125. .SH "APPLICATION USAGE"
  126. None.
  127. .SH RATIONALE
  128. None.
  129. .SH "FUTURE DIRECTIONS"
  130. None.
  131. .SH "SEE ALSO"
  132. .IR "\fB<ctype.h>\fP",
  133. .IR "\fB<locale.h>\fP",
  134. .IR "\fB<stdarg.h>\fP",
  135. .IR "\fB<stddef.h>\fP",
  136. .IR "\fB<stdio.h>\fP",
  137. .IR "\fB<stdlib.h>\fP",
  138. .IR "\fB<string.h>\fP",
  139. .IR "\fB<time.h>\fP",
  140. .IR "\fB<wchar.h>\fP"
  141. .P
  142. The System Interfaces volume of POSIX.1\(hy2017,
  143. .IR "Section 2.2" ", " "The Compilation Environment",
  144. .IR "\fIiswalnum\fR\^(\|)",
  145. .IR "\fIiswalpha\fR\^(\|)",
  146. .IR "\fIiswblank\fR\^(\|)",
  147. .IR "\fIiswcntrl\fR\^(\|)",
  148. .IR "\fIiswctype\fR\^(\|)",
  149. .IR "\fIiswdigit\fR\^(\|)",
  150. .IR "\fIiswgraph\fR\^(\|)",
  151. .IR "\fIiswlower\fR\^(\|)",
  152. .IR "\fIiswprint\fR\^(\|)",
  153. .IR "\fIiswpunct\fR\^(\|)",
  154. .IR "\fIiswspace\fR\^(\|)",
  155. .IR "\fIiswupper\fR\^(\|)",
  156. .IR "\fIiswxdigit\fR\^(\|)",
  157. .IR "\fIsetlocale\fR\^(\|)",
  158. .IR "\fItowctrans\fR\^(\|)",
  159. .IR "\fItowlower\fR\^(\|)",
  160. .IR "\fItowupper\fR\^(\|)",
  161. .IR "\fIwctrans\fR\^(\|)",
  162. .IR "\fIwctype\fR\^(\|)"
  163. .\"
  164. .SH COPYRIGHT
  165. Portions of this text are reprinted and reproduced in electronic form
  166. from IEEE Std 1003.1-2017, Standard for Information Technology
  167. -- Portable Operating System Interface (POSIX), The Open Group Base
  168. Specifications Issue 7, 2018 Edition,
  169. Copyright (C) 2018 by the Institute of
  170. Electrical and Electronics Engineers, Inc and The Open Group.
  171. In the event of any discrepancy between this version and the original IEEE and
  172. The Open Group Standard, the original IEEE and The Open Group Standard
  173. is the referee document. The original Standard can be obtained online at
  174. http://www.opengroup.org/unix/online.html .
  175. .PP
  176. Any typographical or formatting errors that appear
  177. in this page are most likely
  178. to have been introduced during the conversion of the source files to
  179. man page format. To report such errors, see
  180. https://www.kernel.org/doc/man-pages/reporting_bugs.html .