char * []是否可以转换为const char * []？ [英] Is char*[] convertible to const char*[]?
问题描述
GCC 3.3和MSVS 6.0没有问题将char * []转换为const
char * []（甚至不是警告），但是MS的WinCE编译器生成了一个
错误抱怨说这是不可能的。 MS'的WinCE编译器确实允许从char * []到const char **的转换。
我对什么是感兴趣标准会说这个。 （我没有
有副本。）
非常感谢，
Kevin
GCC 3.3 and MSVS 6.0 have no problem converting char*[] to const
char*[] (not even a warning), but MS''s WinCE compiler generated an
error complained that this was not possible. MS''s WinCE compiler did
allow a conversion from char*[] to const char** though.
I''m interested in what the standard would say about this. (I don''t
have a copy.)
Many thanks,
Kevin
推荐答案
有一些关系：
http://groups.google.com/group/comp .... e9846578e62750
there are some conches:
http://groups.google.com/group/comp....e9846578e62750
我知道将char *转换为const char *就好了。问题
我正在使用字符串数组：" char * []" toconst char * []。我公司使用的
参数解析库指定const char * []
，因为它不会更改命令行参数。但是大多数人都把主要写成int main（int argc，char * argv []）。
有些编译器将argc转换为 const char * []"，但其他人似乎无法支付
。什么是正确的？
I know that converting char* to const char* is just fine. The problem
I''m having is with arrays of strings: "char*[]" to "const char*[]". An
argument parsing library my company uses specifies "const char*[]"
because it does not change the command line parameters. But most
people write main as "int main(int argc, char*argv[])".
Some compilers convert argc to "const char*[]", but others seem
incapable. What''s correct?
ke ** ****** @motioneng.com 写道：
我知道将char *转换为const char *就好了。我遇到的问题是字符串数组：" char * []" toconst char * []。我公司使用的
参数解析库指定const char * []
因为它不会更改命令行参数。但大多数人将main写为int main（int argc，char * argv []）。
有些编译器将argc转换为const char * []，但其他人似乎无能为力。什么是正确的？
I know that converting char* to const char* is just fine. The problem
I''m having is with arrays of strings: "char*[]" to "const char*[]". An
argument parsing library my company uses specifies "const char*[]"
because it does not change the command line parameters. But most
people write main as "int main(int argc, char*argv[])".
Some compilers convert argc to "const char*[]", but others seem
incapable. What''s correct?
放慢凯文的速度，看看你在写什么。鉴于..
int main（int argc，char * argv []）
...编译器不能转换为argc at所有。你似乎想要将
的第二个参数限定为main ...
const char * argv []
......但这不是你的电话。标准说所有这些东西都是可写的。
我认为写入它可能是一个坏主意但它是合法的。
-
Joe Wright
所有东西都应尽可能简单，但并不简单。
--- Albert Einstein - -
Slow down Kevin, and read what you''re writing. Given..
int main(int argc, char *argv[])
...compilers don''t convert argc at all. You seem to want to qualify the
second argument to main as..
const char *argv[]
...but it''s not your call. The Standard says all that stuff is writable.
I think it''s probably a bad idea to write to it but it is legal.
--
Joe Wright
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---
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