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桂花糖渍糯米团

你长毛象，真的很喜欢截图普通网友发言，然后发泄自己的恨意，进行小群体狂欢。

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喷漆的乱用（雾）

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webassembly 传递个结构体好难 :bili_emoji_xiaoku:
来地球很久了，很想家（雾

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KY发言 

高中的学霸觉得fcitx5是C++写的，还用了cmake，不懂编程语言看着和外语似的。
我就不明白了，这玩意还没glibc恐怖，C++里头也没LLVM恐怖，谈笑间我已经把事件循环找到了，也许真正的问题在libime里头吧。

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find utility 怎么这么难用？
find /usr/bin -perm /111 -print 的 -perm option is very hard to understand though find(1).

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a
b
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看了下 ninja 的 phony 意思就是一个 target 设置为一群 target 的别名

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一行
另一行
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@mashiro 直接在电脑端手写的，我的换行怎么都没了？ :pio_die:

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目标驱动极简ninja-build教学😂

原因：Windows 没有 make。（高端的目的，往往只需要最朴素的动力）

1. 构建的规则

rule cc
  command = clang $cflags -c $in -o $out

  description = CC $in -> $out

解释：$in 是规则的输入，$out 是规则的输出，由此可以看出，变量前缀为 $。command 是规则要执行的命令，description 是运行这个规则时候终端的输出。

2. 构建什么东西的规则

build 输出: 规则 输入
build a.o: cc a.c

3. 清理规则

rule CLEAN
  command = ninja -t clean all
  description = cleaning all built files...

build clean: phony CLEAN

4. all 规则 | 一个规则依赖多个规则

build all: phony a b c
default all # 默认规则声明

有个坑是 build xxx: phony yyy 的 yyy 这里要是多个规则的话，要写 build 语句定义的目标(xxx部分)，前面的 CLEAN 是一个目标（可能是例外吧（不懂））

5. 变量

CC = clang
cflags = -d -Od

6. 多条命令咋办？

官网建议你用 && 连接命令，或者比如 cmd /c，在不如前面第 4 就在将一个规则怎么对应多个规则。

7. 其实这玩意不建议手写，建议生成（笑）

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技术力爆炸的主页（雾）

<template>
  <div id="container" class="vh-100 d-flex flex-column">
    
    <h1>web-vue-playground index</h1>

    <b-list-group class="link-group px-2">
      <!-- prettier-ignore -->
      <b-list-group-item v-for="link in links"
        :key="link.href"
        :href="link.href"
        class="link-group-item float-left mx-2"
      >
        {{ link.text }}
      </b-list-group-item>
    </b-list-group>

  </div>
</template>

<script>
export default {
  data() {
    return {
      links: [
        // { text: "", href: "" },
        { text: "speak", href: "/speak" },
        { text: "speak", href: "/speak" },
        { text: "speak", href: "/speak" },
        { text: "speak", href: "/speak" },
        { text: "speak", href: "/speak" },
        { text: "speak", href: "/speak" },
      ],
    };
  },
};
</script>

<style>
h1 {
  margin: 30px 0;

  text-align: center;
  line-height: 1;
}

.link-group {
  /* flex 容器 */
  display: flex;
  flex-wrap: wrap; /* 折行(鉴于改了方向，应该说折列) */
  align-content: flex-start; /* 向交叉轴起始段对其 */

  overflow-x: scroll; /* 水平滚动条常驻 */

  /* flex 元素 */
  flex-basis: 100%;
}

.link-group-item {
  width: 300px;
  border: none; /* 清掉原来带的边框 */
  background-color: #efefef;
}
</style>
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要素过多 :bili_emoji_huaji:

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下了个华为的openEular看看
我不清楚这系统是想咋滴

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你觉得 openharmony 1.0 配不配称为中国人的自主可控操作系统？

1 person · Jun 14, 2021, 11:46
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实际上我在发消息前也感觉应该太奇怪了，不幸的是我一并认为如果能得道对方的批评的话，也是赚到，于是我就发送消息了
然后他没有理我，朋友觉得我说话太奇怪了
:bili_emoji_xiaoku: 太难了太难了

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在 FreeBSD 源里头看到 Manjaro 那个图标主题了

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喜闻乐见 libcxx vector 移动所用的函数模板

// 普通类
template <class _Ptr>
_LIBCPP_INLINE_VISIBILITY
static
void
__construct_backward_with_exception_guarantees(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __end2)
{
    static_assert(__is_cpp17_move_insertable<allocator_type>::value,
      "The specified type does not meet the requirements of Cpp17MoveInsertable");
    // __end2 目的
    // __begin1, __end1 源
    while (__end1 != __begin1) // 遍历 vector 扩张前所有元素
    {
        // 在 (__end2 - 1) 位置上移动构造 *(--end1)
        construct(__a, _VSTD::__to_address(__end2 - 1),
#ifdef _LIBCPP_NO_EXCEPTIONS
            _VSTD::move(*--__end1)
#else
            _VSTD::move_if_noexcept(*--__end1)
#endif
        );
        --__end2;
    }
}

// 可平凡移动构造的类
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY
static
typename enable_if
<
    (__is_default_allocator<allocator_type>::value
        || !__has_construct<allocator_type, _Tp*, _Tp>::value) &&
     is_trivially_move_constructible<_Tp>::value, // 平凡移动构造约束
    void
>::type
__construct_backward_with_exception_guarantees(allocator_type&, _Tp* __begin1, _Tp* __end1, _Tp*& __end2)
{
    ptrdiff_t _Np = __end1 - __begin1; // 需要移动的元素个数
    __end2 -= _Np; // 目的地址

    // memcpy
    if (_Np > 0)
        _VSTD::memcpy(__end2, __begin1, _Np * sizeof(_Tp));
}
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语 料 库: lib/libc/gen/errlst.c

const char __uprefix[] = "Unknown error";

const char *const sys_errlist[] = {
	"No error: 0",				/*  0 - ENOERROR */
	"Operation not permitted",		/*  1 - EPERM */
	"No such file or directory",		/*  2 - ENOENT */
	"No such process",			/*  3 - ESRCH */
	"Interrupted system call",		/*  4 - EINTR */
	"Input/output error",			/*  5 - EIO */
	"Device not configured",		/*  6 - ENXIO */
	"Argument list too long",		/*  7 - E2BIG */
	"Exec format error",			/*  8 - ENOEXEC */
	"Bad file descriptor",			/*  9 - EBADF */
	"No child processes",			/* 10 - ECHILD */
	"Resource deadlock avoided",		/* 11 - EDEADLK */
	"Cannot allocate memory",		/* 12 - ENOMEM */
	"Permission denied",			/* 13 - EACCES */
	"Bad address",				/* 14 - EFAULT */
	"Block device required",		/* 15 - ENOTBLK */
	"Device busy",				/* 16 - EBUSY */
	"File exists",				/* 17 - EEXIST */
	"Cross-device link",			/* 18 - EXDEV */
	"Operation not supported by device",	/* 19 - ENODEV */
	"Not a directory",			/* 20 - ENOTDIR */
	"Is a directory",			/* 21 - EISDIR */
	"Invalid argument",			/* 22 - EINVAL */
	"Too many open files in system",	/* 23 - ENFILE */
	"Too many open files",			/* 24 - EMFILE */
	"Inappropriate ioctl for device",	/* 25 - ENOTTY */
	"Text file busy",			/* 26 - ETXTBSY */
	"File too large",			/* 27 - EFBIG */
	"No space left on device",		/* 28 - ENOSPC */
	"Illegal seek",				/* 29 - ESPIPE */
	"Read-only file system",		/* 30 - EROFS */
	"Too many links",			/* 31 - EMLINK */
	"Broken pipe",				/* 32 - EPIPE */

/* math software */
	"Numerical argument out of domain",	/* 33 - EDOM */
	"Result too large",			/* 34 - ERANGE */

/* non-blocking and interrupt i/o */
	"Resource temporarily unavailable",	/* 35 - EAGAIN */
						/* 35 - EWOULDBLOCK */
	"Operation now in progress",		/* 36 - EINPROGRESS */
	"Operation already in progress",	/* 37 - EALREADY */

/* ipc/network software -- argument errors */
	"Socket operation on non-socket",	/* 38 - ENOTSOCK */
	"Destination address required",		/* 39 - EDESTADDRREQ */
	"Message too long",			/* 40 - EMSGSIZE */
	"Protocol wrong type for socket",	/* 41 - EPROTOTYPE */
	"Protocol not available",		/* 42 - ENOPROTOOPT */
	"Protocol not supported",		/* 43 - EPROTONOSUPPORT */
	"Socket type not supported",		/* 44 - ESOCKTNOSUPPORT */
	"Operation not supported",		/* 45 - EOPNOTSUPP */
	"Protocol family not supported",	/* 46 - EPFNOSUPPORT */
						/* 47 - EAFNOSUPPORT */
	"Address family not supported by protocol family",
	"Address already in use",		/* 48 - EADDRINUSE */
	"Can't assign requested address",	/* 49 - EADDRNOTAVAIL */

/* ipc/network software -- operational errors */
	"Network is down",			/* 50 - ENETDOWN */
	"Network is unreachable",		/* 51 - ENETUNREACH */
	"Network dropped connection on reset",	/* 52 - ENETRESET */
	"Software caused connection abort",	/* 53 - ECONNABORTED */
	"Connection reset by peer",		/* 54 - ECONNRESET */
	"No buffer space available",		/* 55 - ENOBUFS */
	"Socket is already connected",		/* 56 - EISCONN */
	"Socket is not connected",		/* 57 - ENOTCONN */
	"Can't send after socket shutdown",	/* 58 - ESHUTDOWN */
	"Too many references: can't splice",	/* 59 - ETOOMANYREFS */
	"Operation timed out",			/* 60 - ETIMEDOUT */
	"Connection refused",			/* 61 - ECONNREFUSED */

	"Too many levels of symbolic links",	/* 62 - ELOOP */
	"File name too long",			/* 63 - ENAMETOOLONG */

/* should be rearranged */
	"Host is down",				/* 64 - EHOSTDOWN */
	"No route to host",			/* 65 - EHOSTUNREACH */
	"Directory not empty",			/* 66 - ENOTEMPTY */

/* quotas & mush */
	"Too many processes",			/* 67 - EPROCLIM */
	"Too many users",			/* 68 - EUSERS */
	"Disc quota exceeded",			/* 69 - EDQUOT */

/* Network File System */
	"Stale NFS file handle",		/* 70 - ESTALE */
	"Too many levels of remote in path",	/* 71 - EREMOTE */
	"RPC struct is bad",			/* 72 - EBADRPC */
	"RPC version wrong",			/* 73 - ERPCMISMATCH */
	"RPC prog. not avail",			/* 74 - EPROGUNAVAIL */
	"Program version wrong",		/* 75 - EPROGMISMATCH */
	"Bad procedure for program",		/* 76 - EPROCUNAVAIL */

	"No locks available",			/* 77 - ENOLCK */
	"Function not implemented",		/* 78 - ENOSYS */
	"Inappropriate file type or format",	/* 79 - EFTYPE */
	"Authentication error",			/* 80 - EAUTH */
	"Need authenticator",			/* 81 - ENEEDAUTH */
	"Identifier removed",			/* 82 - EIDRM */
	"No message of desired type",		/* 83 - ENOMSG */
	"Value too large to be stored in data type", /* 84 - EOVERFLOW */
	"Operation canceled",			/* 85 - ECANCELED */
	"Illegal byte sequence",		/* 86 - EILSEQ */
	"Attribute not found",			/* 87 - ENOATTR */

/* General */
	"Programming error",			/* 88 - EDOOFUS */

	"Bad message",				/* 89 - EBADMSG */
	"Multihop attempted",			/* 90 - EMULTIHOP */
	"Link has been severed",		/* 91 - ENOLINK */
	"Protocol error",			/* 92 - EPROTO */
	"Capabilities insufficient",		/* 93 - ENOTCAPABLE */
	"Not permitted in capability mode",	/* 94 - ECAPMODE */
	"State not recoverable",		/* 95 - ENOTRECOVERABLE */
	"Previous owner died",			/* 96 - EOWNERDEAD */

/*
 * Reserved space in sys_errlist, take the next slot for a next error code.
 * Reserve prevents the array size from changing for some time.
 */
	__uprefix,				/* 97 */
	__uprefix,				/* 98 */
	__uprefix,				/* 99 */
	__uprefix,				/* 100 */
	__uprefix,				/* 101 */
	__uprefix,				/* 102 */
	__uprefix,				/* 103 */
	__uprefix,				/* 104 */
	__uprefix,				/* 105 */
	__uprefix,				/* 106 */
	__uprefix,				/* 107 */
	__uprefix,				/* 108 */
	__uprefix,				/* 109 */
	__uprefix,				/* 110 */
	__uprefix,				/* 111 */
	__uprefix,				/* 112 */
	__uprefix,				/* 113 */
	__uprefix,				/* 114 */
	__uprefix,				/* 115 */
	__uprefix,				/* 116 */
	__uprefix,				/* 117 */
	__uprefix,				/* 118 */
	__uprefix,				/* 119 */
	__uprefix,				/* 120 */
	__uprefix,				/* 121 */
	__uprefix,				/* 122 */
	__uprefix,				/* 123 */
	__uprefix,				/* 124 */
	__uprefix,				/* 125 */
	__uprefix,				/* 126 */
	__uprefix,				/* 127 */
	__uprefix,				/* 128 */
	__uprefix,				/* 129 */
	__uprefix,				/* 130 */
	__uprefix,				/* 131 */
	__uprefix,				/* 132 */
	__uprefix,				/* 133 */
	__uprefix,				/* 134 */
	__uprefix,				/* 135 */
	__uprefix,				/* 136 */
	__uprefix,				/* 137 */
	__uprefix,				/* 138 */
	__uprefix,				/* 139 */
	__uprefix,				/* 140 */
	__uprefix,				/* 141 */
	__uprefix,				/* 142 */
	__uprefix,				/* 143 */
	__uprefix,				/* 144 */
	__uprefix,				/* 145 */
	__uprefix,				/* 146 */
	__uprefix,				/* 147 */
	__uprefix,				/* 148 */
	__uprefix,				/* 149 */
	__uprefix,				/* 150 */
};
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来点plan9让大家开心一下：
/sys/include/9p.h

struct Fid
{
	ulong	fid;
	char		omode;	/* -1 = not open */
	File*		file;
	char*	uid;
	Qid		qid;
	void*	aux;

/* below is implementation-specific; don't use */
	Readdir*	rdir;
	Ref		ref;
	Fidpool*	pool;
	vlong	diroffset;
	long		dirindex;
};
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看到这弹幕，我厚道的笑了

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小森林

每个人都有属于自己的一片森林，也许我们从来不曾走过，但它一直在那里，总会在那里。迷失的人迷失了，相逢的人会再相逢。愿这里，成为属于你的小森林。

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