g ++错误：'stricmp'未在此范围中声明（但对于'strcmp'正确） [英] g++ error: ‘stricmp’ was not declared in this scope (but OK for 'strcmp')

问题描述

我试图编译以下非常简单的源代码片段：

  #include< cstring> 
 // #include< string.h> 
 // using namespace std; 
 
 class Helper {
 public：
 int cStringsAreEqual（const char * s1，const char * s2）{
 return stricmp（s1，s2）; 
} 
}; 
  

...但我收到以下错误消息：

  g ++错误：'stricmp'未在此范围内声明
  

b $ b

但是，当我使用 strcmp（）而不是 stricmp（）时，一切都很好！

这里可能出错了什么？当允许使用strcmp（）时，不允许使用stricmp（）？

Sureley，所有这些都可以用更好的方式编写而不用strcmp / stricmp。 p>

但这不是这里的问题。

我正在移植一个软件 - stricmp（）。

任何帮助将非常感谢！

如果有可能，我想避免所有的努力需要改变每次调用stricmp。

BTW：我用g ++ v4.4.1使用Ubuntu karmic操作系统（v9.10）。

看到我也用'#include string.h'或'namespace std'做了一些试验，但没有任何帮助。

解决方案

strcasecmp（）。以下是手册页。它符合4.4BSD和POSIX.1-2001。

I am trying to compile the following very very simple piece of source code:

#include <cstring>
// #include <string.h>
// using namespace std;

class Helper {
public:
    int cStringsAreEqual(const char *s1, const char *s2) {
        return stricmp(s1, s2);
    }
};

... but I am getting the following error message:

   g++ error: ‘stricmp’ was not declared in this scope

However when I use strcmp() instead of stricmp() then everything is fine!

What can be wrong here? Shouldn't stricmp() be allowed when strcmp() is allowed?

Sureley, this all could be written in a much better way without using strcmp/stricmp.

But that's not the point here.

I am porting a piece of software - which makes much use of calls to stricmp(). And if somehow possible I would like to avoid all of the efforts needed to change every call to stricmp.

Any help on this would be very much appreciated!

BTW: I am using Ubuntu karmic OS (v9.10) with g++ v4.4.1.

BTW: as you can see I also made some trials with '#include string.h' or with 'namespace std' but nothing helped.

解决方案

Try strcasecmp(). Here's the manual page for it. It is conforming to 4.4BSD and POSIX.1-2001.

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