ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libecb/Changes
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:
*** empty log message ***

File Contents

# User Rev Content
1 root 1.18 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 root 1.15 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 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/
25 root 1.12
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 root 1.6 0x00010001
73     - add ecb_is_pot32/64.
74     - add intptr_t/uintptr_t.
75     - add ECB_PTRSIZE.
76 root 1.7 - more macros for C/C++ version checks.
77     - support C11 atomics for memory fences.
78     - support gcc-4.7 atomics for memory fences.
79 root 1.10 - support m68k, m88k and sh (patch by Miod Vallat).
80 root 1.11 - add ecb_binary16_to_float.
81 root 1.6
82 root 1.9 TODO: ecb_restrict_array etc. http://ue.tst.eu/5093eafd713ec5fda776d8065070aa4c.txt
83 root 1.1 TODO: ffs/clz
84     64 bit variants of everything
85 root 1.2 TODO: examples from X for clz/ctz
86 root 1.3 TODO: arithmetic right shift
87     TODO: template/generic functions for x32/x64 and so on
88 root 1.4 TODO: #define ecb_integer_multiples_of(n,d) ((char (*)[d])(n) - (char (*)[d])0)
89 root 1.3 TODO: generalised shift
90 root 1.8 TODO: #define ECB_FAST_UNALIGNED_ACCESS
91 root 1.3 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 root 1.14
99 root 1.16 TODO: export(=dllexport) & hidden
100     TODO: flatten
101     TODO: warning(msg)
102     TODO: error(msg)
103 root 1.17 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 root 1.16
110 root 1.14 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