1 /** 2 * D header file for C99. 3 * 4 * $(C_HEADER_DESCRIPTION pubs.opengroup.org/onlinepubs/009695399/basedefs/_ctype.h.html, _ctype.h) 5 * 6 * Copyright: Copyright Sean Kelly 2005 - 2009. 7 * License: Distributed under the 8 * $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0). 9 * (See accompanying file LICENSE) 10 * Authors: Sean Kelly 11 * Source: $(DRUNTIMESRC core/stdc/_ctype.d) 12 * Standards: ISO/IEC 9899:1999 (E) 13 */ 14 15 module core.stdc.ctype; 16 17 extern (C): 18 @trusted: // All of these operate on integers only. 19 nothrow: 20 @nogc: 21 22 /// 23 pure int isalnum(int c); 24 /// 25 pure int isalpha(int c); 26 /// 27 pure int isblank(int c); 28 /// 29 pure int iscntrl(int c); 30 /// 31 pure int isdigit(int c); 32 /// 33 pure int isgraph(int c); 34 /// 35 pure int islower(int c); 36 /// 37 pure int isprint(int c); 38 /// 39 pure int ispunct(int c); 40 /// 41 pure int isspace(int c); 42 /// 43 pure int isupper(int c); 44 /// 45 pure int isxdigit(int c); 46 /// 47 pure int tolower(int c); 48 /// 49 pure int toupper(int c); 50