1/**
2 * D header file for C99.
3 *
4 * $(C_HEADER_DESCRIPTION pubs.opengroup.org/onlinepubs/009695399/basedefs/_string.h.html, _string.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/_string.d)
12 * Standards: ISO/IEC 9899:1999 (E)
13 */
14
15module core.stdc.string;
16
17version (OSX)
18    version = Darwin;
19else version (iOS)
20    version = Darwin;
21else version (TVOS)
22    version = Darwin;
23else version (WatchOS)
24    version = Darwin;
25
26// Those libs don't expose the mandated C interface
27version (CRuntime_Glibc)
28    version = ReturnStrerrorR;
29else version (CRuntime_UClibc)
30    version = ReturnStrerrorR;
31
32extern (C):
33@system:
34nothrow:
35@nogc:
36
37///
38inout(void)* memchr(return scope inout void* s, int c, size_t n) pure;
39///
40int   memcmp(scope const void* s1, scope const void* s2, size_t n) pure;
41///
42void* memcpy(return scope void* s1, scope const void* s2, size_t n) pure;
43version (Windows)
44{
45    ///
46    int memicmp(scope const char* s1, scope const char* s2, size_t n);
47}
48///
49void* memmove(return scope void* s1, scope const void* s2, size_t n) pure;
50///
51void* memset(return scope void* s, int c, size_t n) pure;
52
53///
54char*  strcat(return scope char* s1, scope const char* s2) pure;
55///
56inout(char)*  strchr(return scope inout(char)* s, int c) pure;
57///
58int    strcmp(scope const char* s1, scope const char* s2) pure;
59///
60int    strcoll(scope const char* s1, scope const char* s2);
61///
62char*  strcpy(return scope char* s1, scope const char* s2) pure;
63///
64size_t strcspn(scope const char* s1, scope const char* s2) pure;
65///
66char*  strdup(scope const char *s);
67///
68char*  strerror(int errnum);
69// This `strerror_r` definition is not following the POSIX standard
70version (ReturnStrerrorR)
71{
72    ///
73    const(char)* strerror_r(int errnum, return scope char* buf, size_t buflen);
74}
75// This one is
76else
77{
78    int strerror_r(int errnum, scope char* buf, size_t buflen);
79}
80///
81size_t strlen(scope const char* s) pure;
82///
83char*  strncat(return scope char* s1, scope const char* s2, size_t n) pure;
84///
85int    strncmp(scope const char* s1, scope const char* s2, size_t n) pure;
86///
87char*  strncpy(return scope char* s1, scope const char* s2, size_t n) pure;
88///
89inout(char)*  strpbrk(return scope inout(char)* s1, scope const char* s2) pure;
90///
91inout(char)*  strrchr(return scope inout(char)* s, int c) pure;
92///
93size_t strspn(scope const char* s1, scope const char* s2) pure;
94///
95inout(char)*  strstr(return scope inout(char)* s1, scope const char* s2) pure;
96///
97char*  strtok(return scope char* s1, scope const char* s2);
98///
99size_t strxfrm(scope char* s1, scope const char* s2, size_t n);
100