我们知道C语言中可以用strcmp来比较两个字符,但是那是区别大小写的,C++中有没有不分大小写的strcmp?

[HashCodeWithJava]

[Sodar]

_stricmp

[ydogg]

strcmp()是区分大小写的。。。

你可以用CString类的MakeUpper()或者MakeLower()函数，
全部转换为大写或小写，在作比较。
这样，就可以不考虑大小写的问题了。

[joke100]

int lstrcmpi(
LPCTSTR lpString1, // first string
LPCTSTR lpString2 // second string
);

The comparison is not case sensitive.

int n = lstrcmpi("abcd", "ABcd"); // 结果n == 0,忽略大小写

[gameboy999]

strcmp(UpperCase(str1),UpperCase(str2));

ok!

[HashCodeWithJava]

不是用CString
到lstrcmpi
和_stricmp行不行喔？

[xin_cygnet]

Sodar 说得言简意赅，可谓Sodar的贴子一出就应立即得分。请看下边使用 _stricmp 的例子，一看便知!

/* STRCMP.C */

#include <string.h>
#include <stdio.h>

char string1[] = "The quick brown dog jumps over the lazy fox";
char string2[] = "The QUICK brown dog jumps over the lazy fox";

void main( void )
{
char tmp[20];
int result;
/* Case sensitive */
printf( "Compare strings:\n\t%s\n\t%s\n\n", string1, string2 );
result = strcmp( string1, string2 );
if( result > 0 )
strcpy( tmp, "greater than" );
else if( result < 0 )
strcpy( tmp, "less than" );
else
strcpy( tmp, "equal to" );
printf( "\tstrcmp: String 1 is %s string 2\n", tmp );
/* Case insensitive (could use equivalent _stricmp) */
result = _stricmp( string1, string2 );
if( result > 0 )
strcpy( tmp, "greater than" );
else if( result < 0 )
strcpy( tmp, "less than" );
else
strcpy( tmp, "equal to" );
printf( "\t_stricmp: String 1 is %s string 2\n", tmp );
}


Output

Compare strings:
The quick brown dog jumps over the lazy fox
The QUICK brown dog jumps over the lazy fox

strcmp: String 1 is greater than string 2
_stricmp: String 1 is equal to string 2

[xin_cygnet]

至于C++的 Comp 可用下边的函数实现，其中当 diff==TRUE 时区分大小写，否则不区分大小写。

int StrComp(CString s1,CString s2,BOOL diff)
{
LPCTSTR sz1,sz2;
sz1=s1;
sz2=s2;
if(diff)//区分大小写
{
return strcmp(sz1,sz2);
}
else
{
return _stricmp(sz1,sz2);
}
}