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Revision: 1.17
Committed: Wed Feb 18 20:29:27 2015 UTC (9 years, 4 months ago) by root
Branch: MAIN
Changes since 1.16: +6 -0 lines
Log Message:
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# User Rev Content
1 root 1.15 TODO:
2     08:30:06 <b_jonas> I think it could be worth to add a macro that works like alignof or _Alignof on sane
3     compilers, and like __alignof on MS compilers that support it, see
4     http://msdn.microsoft.com/en-us/library/45t0s5f4.aspx
5     08:30:24 <b_jonas> even if you can't support it on all the old compilers
6     08:31:17 <b_jonas> I'd also like a macro for alignas, but sadly, that seems impossible in general, because
7     the MS compiler only has some half-attempt to do something similar but with different and
8     more broken semantics, see http://msdn.microsoft.com/en-us/library/83ythb65.aspx
9     08:31:35 <b_jonas> but I wonder if some special case could still be worth to support
10     08:32:23 <b_jonas> probably not, because it would just account to making a union with a highly aligned type,
11     which is something I can do on any compiler portably
12    
13     TODO: #define ECB_IS_INTEGRAL(x) !((1 ? 1 : (x)) / 2)
14     #define ECB_IS_INTEGRAL(x) (sizeof ((x) + 1.0f) != sizeof((x) + 1ULL))
15    
16     TODO: define ECB_STDFP if __STDC_IEC_559__?
17    
18     TODO: https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/
19    
20 root 1.13 implement is_constant for c11: https://gustedt.wordpress.com/2013/08/22/testing-compile-time-constness-and-null-pointers-with-c11s-_generic/
21 root 1.12
22     #ifdef _MSC_VER
23    
24     #include <stdlib.h>
25     #define bswap_32(x) _byteswap_ulong(x)
26     #define bswap_64(x) _byteswap_uint64(x)
27    
28     #elif defined(__APPLE__)
29    
30     // Mac OS X / Darwin features
31     #include <libkern/OSByteOrder.h>
32     #define bswap_32(x) OSSwapInt32(x)
33     #define bswap_64(x) OSSwapInt64(x)
34    
35     #elif defined(__sun) || defined(sun)
36    
37     #include <sys/byteorder.h>
38     #define bswap_32(x) BSWAP_32(x)
39     #define bswap_64(x) BSWAP_64(x)
40    
41     #elif defined(__FreeBSD__)
42    
43     #include <sys/endian.h>
44     #define bswap_32(x) bswap32(x)
45     #define bswap_64(x) bswap64(x)
46    
47     #elif defined(__OpenBSD__)
48    
49     #include <sys/types.h>
50     #define bswap_32(x) swap32(x)
51     #define bswap_64(x) swap64(x)
52    
53     #elif defined(__NetBSD__)
54    
55     #include <sys/types.h>
56     #include <machine/bswap.h>
57     #if defined(__BSWAP_RENAME) && !defined(__bswap_32)
58     #define bswap_32(x) bswap32(x)
59     #define bswap_64(x) bswap64(x)
60     #endif
61    
62     #else
63    
64     #include <byteswap.h>
65    
66     #endif
67    
68 root 1.6 0x00010001
69     - add ecb_is_pot32/64.
70     - add intptr_t/uintptr_t.
71     - add ECB_PTRSIZE.
72 root 1.7 - more macros for C/C++ version checks.
73     - support C11 atomics for memory fences.
74     - support gcc-4.7 atomics for memory fences.
75 root 1.10 - support m68k, m88k and sh (patch by Miod Vallat).
76 root 1.11 - add ecb_binary16_to_float.
77 root 1.6
78 root 1.9 TODO: ecb_restrict_array etc. http://ue.tst.eu/5093eafd713ec5fda776d8065070aa4c.txt
79 root 1.1 TODO: ffs/clz
80     64 bit variants of everything
81 root 1.2 TODO: examples from X for clz/ctz
82 root 1.3 TODO: arithmetic right shift
83     TODO: template/generic functions for x32/x64 and so on
84 root 1.4 TODO: #define ecb_integer_multiples_of(n,d) ((char (*)[d])(n) - (char (*)[d])0)
85 root 1.3 TODO: generalised shift
86 root 1.8 TODO: #define ECB_FAST_UNALIGNED_ACCESS
87 root 1.3 unsigned long gensh(unsigned long v, int x) {
88     int a, b;
89     a = (v << x) & -(((unsigned int)x) < 32);
90     x = -x;
91     b = (v >> x) & -(((unsigned int)x) < 32);
92     return a|b;
93     }
94 root 1.14
95 root 1.16 TODO: export(=dllexport) & hidden
96     TODO: flatten
97     TODO: warning(msg)
98     TODO: error(msg)
99 root 1.17 TODO: leaf (uh), noclone (hmmm)
100     TODO: nonnull, returns_nonnull
101     TODO: nothrow
102     TODO: used
103     TODO: trap
104     TODO: http://llvm.org/docs/doxygen/html/Compiler_8h_source.html
105 root 1.16
106 root 1.14 TODO: read/write unaligned macros
107     TODO: htonl and friends
108     TODO: macro to convetr from unsigned to signed "the natural way"
109     TODO: ecb_deprecated with message
110     TODO: ecb_static_assert, with message (just like boost), or somesuch, using array-declaration
111     TODO: alignof
112    
113