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Revision: 1.18
Committed: Wed Feb 18 20:48:59 2015 UTC (9 years, 4 months ago) by root
Branch: MAIN
Changes since 1.17: +4 -0 lines
Log Message:
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File Contents

# Content
1 exg: why is ecb_prefetch not uppercase (Also ecb_assume) - they are not expressions.
2 exg: #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) // make sure expr actually is valid?
3 ECB_STRINGIFY(ENOENT) wehen errnoh. not included
4
5 TODO:
6 08:30:06 <b_jonas> I think it could be worth to add a macro that works like alignof or _Alignof on sane
7 compilers, and like __alignof on MS compilers that support it, see
8 http://msdn.microsoft.com/en-us/library/45t0s5f4.aspx
9 08:30:24 <b_jonas> even if you can't support it on all the old compilers
10 08:31:17 <b_jonas> I'd also like a macro for alignas, but sadly, that seems impossible in general, because
11 the MS compiler only has some half-attempt to do something similar but with different and
12 more broken semantics, see http://msdn.microsoft.com/en-us/library/83ythb65.aspx
13 08:31:35 <b_jonas> but I wonder if some special case could still be worth to support
14 08:32:23 <b_jonas> probably not, because it would just account to making a union with a highly aligned type,
15 which is something I can do on any compiler portably
16
17 TODO: #define ECB_IS_INTEGRAL(x) !((1 ? 1 : (x)) / 2)
18 #define ECB_IS_INTEGRAL(x) (sizeof ((x) + 1.0f) != sizeof((x) + 1ULL))
19
20 TODO: define ECB_STDFP if __STDC_IEC_559__?
21
22 TODO: https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/
23
24 implement is_constant for c11: https://gustedt.wordpress.com/2013/08/22/testing-compile-time-constness-and-null-pointers-with-c11s-_generic/
25
26 #ifdef _MSC_VER
27
28 #include <stdlib.h>
29 #define bswap_32(x) _byteswap_ulong(x)
30 #define bswap_64(x) _byteswap_uint64(x)
31
32 #elif defined(__APPLE__)
33
34 // Mac OS X / Darwin features
35 #include <libkern/OSByteOrder.h>
36 #define bswap_32(x) OSSwapInt32(x)
37 #define bswap_64(x) OSSwapInt64(x)
38
39 #elif defined(__sun) || defined(sun)
40
41 #include <sys/byteorder.h>
42 #define bswap_32(x) BSWAP_32(x)
43 #define bswap_64(x) BSWAP_64(x)
44
45 #elif defined(__FreeBSD__)
46
47 #include <sys/endian.h>
48 #define bswap_32(x) bswap32(x)
49 #define bswap_64(x) bswap64(x)
50
51 #elif defined(__OpenBSD__)
52
53 #include <sys/types.h>
54 #define bswap_32(x) swap32(x)
55 #define bswap_64(x) swap64(x)
56
57 #elif defined(__NetBSD__)
58
59 #include <sys/types.h>
60 #include <machine/bswap.h>
61 #if defined(__BSWAP_RENAME) && !defined(__bswap_32)
62 #define bswap_32(x) bswap32(x)
63 #define bswap_64(x) bswap64(x)
64 #endif
65
66 #else
67
68 #include <byteswap.h>
69
70 #endif
71
72 0x00010001
73 - add ecb_is_pot32/64.
74 - add intptr_t/uintptr_t.
75 - add ECB_PTRSIZE.
76 - more macros for C/C++ version checks.
77 - support C11 atomics for memory fences.
78 - support gcc-4.7 atomics for memory fences.
79 - support m68k, m88k and sh (patch by Miod Vallat).
80 - add ecb_binary16_to_float.
81
82 TODO: ecb_restrict_array etc. http://ue.tst.eu/5093eafd713ec5fda776d8065070aa4c.txt
83 TODO: ffs/clz
84 64 bit variants of everything
85 TODO: examples from X for clz/ctz
86 TODO: arithmetic right shift
87 TODO: template/generic functions for x32/x64 and so on
88 TODO: #define ecb_integer_multiples_of(n,d) ((char (*)[d])(n) - (char (*)[d])0)
89 TODO: generalised shift
90 TODO: #define ECB_FAST_UNALIGNED_ACCESS
91 unsigned long gensh(unsigned long v, int x) {
92 int a, b;
93 a = (v << x) & -(((unsigned int)x) < 32);
94 x = -x;
95 b = (v >> x) & -(((unsigned int)x) < 32);
96 return a|b;
97 }
98
99 TODO: export(=dllexport) & hidden
100 TODO: flatten
101 TODO: warning(msg)
102 TODO: error(msg)
103 TODO: leaf (uh), noclone (hmmm)
104 TODO: nonnull, returns_nonnull
105 TODO: nothrow
106 TODO: used
107 TODO: trap
108 TODO: http://llvm.org/docs/doxygen/html/Compiler_8h_source.html
109
110 TODO: read/write unaligned macros
111 TODO: htonl and friends
112 TODO: macro to convetr from unsigned to signed "the natural way"
113 TODO: ecb_deprecated with message
114 TODO: ecb_static_assert, with message (just like boost), or somesuch, using array-declaration
115 TODO: alignof
116
117