L_tmpnam宏 [英] L_tmpnam macro
问题描述
``L_tmpnam''''[7.9.1 / 7.4.4]宏给出了混合案例名称的
故意设计决定吗？
它是唯一一个扩展为整数常量表达式的宏吗？名称中包含
小写字符？
鲍勃·尼尔森写道：
是``L_tmpnam''''[7.9.1 / 7.4.4]宏给出了混合案例名称由
故意设计决定？
[...]
我的笨蛋：``s / 7.7.4 / 7.9 .4 /''''。
Bob Nelson< bn ***** @ nelsonbe.com写：
是不是L_tmpnam'['[7.9.1 / 7.4.4]宏给出了混合案例名称的
故意设计决定？
你的意思是7.9.1 / 7.9.4.4。两者都参考C90标准中的部分。
我认为这是故意的。大写的L部分遵循大写宏名称的
约定。小写tmpnam是指
tmpnam（）函数。
它是唯一扩展为具有
$的整数常量表达式的宏b $ b名称中的小写字符？
不，这是另一个：
#define the_answer 42
但严重的是，C99'< stdbool.hhas宏" false"，" true"和
" __ bool_true_false_are_defined"。这些是我能想到的唯一一个。
of。如果你对答案比我更感兴趣8-）}，你可以
总是通过标准查看其他例子。
- -
Keith Thompson（The_Other_Keith） ks***@mib.org < http：// www .ghoti.net / ~kst>
诺基亚
我们必须做点什么。这是事情。因此，我们必须这样做。
- Antony Jay和Jonathan Lynn，是部长
Bob Nelson写道：
是``L_tmpnam''''[7.9.1 / 7.4.4]宏给出了混合案例名称
故意设计决定？
它是唯一一个扩展为整数常量表达式的宏，名称中包含
小写字符？
在C89中还有：
offsetof
stdin
stdout
stderr
断言
errno
va_start
va_arg
va_copy
C99有更多。
-
pete
Was the ``L_tmpnam'''' [7.9.1/7.4.4] macro given that mixed case name by a
deliberate design decision?
Is it the only macro expanding to an integral constant expression that has
lowercase characters in the name?
Bob Nelson wrote:
Was the ``L_tmpnam'''' [7.9.1/7.4.4] macro given that mixed case name by a
deliberate design decision?
[...]My botch: ``s/7.7.4/7.9.4/''''.
Bob Nelson <bn*****@nelsonbe.comwrites:Was the ``L_tmpnam'''' [7.9.1/7.4.4] macro given that mixed case name by a
deliberate design decision?You mean 7.9.1/7.9.4.4. Both refer to sections in the C90 standard.
I presume it was deliberate. The uppercase ''L'' partially follows the
convention of uppercase macro names. The lowercase "tmpnam" refers to
the tmpnam() function.
Is it the only macro expanding to an integral constant expression that has
lowercase characters in the name?No, here''s another one:
#define the_answer 42
But seriously, C99''s <stdbool.hhas macros "false", "true", and
"__bool_true_false_are_defined". Those are the only ones I can think
of. If you''re more interested in the answer than I am 8-)}, you can
always look through the standard for other examples.
--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
Nokia
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
Bob Nelson wrote:Was the ``L_tmpnam'''' [7.9.1/7.4.4] macro given that mixed case name by a
deliberate design decision?
Is it the only macro expanding to an integral constant expression that has
lowercase characters in the name?In C89 there''s also:
offsetof
stdin
stdout
stderr
assert
errno
va_start
va_arg
va_copy
C99 has more.
--
pete
这篇关于L_tmpnam宏的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
