std::string 条件断点设置

Visual Studio中的添加断点功能中支持的字符串函数有：strlen, wcslen, strnlen, wcsnlen, strcmp, wcscmp, _stricmp, _wcsicmp, strncmp, wcsncmp, _strnicmp, _wcsnicmp, strchr, wcschr, strstr, wcsstr.

1. Visual Studio 2010 下，可以使用：strcmp( name._Bx._Buf, "sam")==0 或  str._Bx._Buf[0]=='1'进行条件设置; 
2. Visual Studio 2012 下， 
    strcmp( fileName._Bx._Buf, "sam")==0
3. Visual Studio 2015 下:
   str[0] == 's'


reference:   
[http://www.cnblogs.com/kekec/p/5635854.html](http://www.cnblogs.com/kekec/p/5635854.html)  
[https://stackoverflow.com/questions/21935563/how-to-set-conditional-breakpoint-based-on-string-comparison-in-visual-studio](https://stackoverflow.com/questions/21935563/how-to-set-conditional-breakpoint-based-on-string-comparison-in-visual-studio)
[http://www.suodenjoki.dk/us/archive/2010/conditional-breakpoint.htm](http://www.suodenjoki.dk/us/archive/2010/conditional-breakpoint.htm)

reference:

http://blog.youkuaiyun.com/sunyikuyu/article/details/8864933