[cfe-dev] searching for an empty string in an empty string

Vladimir Voskresensky - Oracle vladimir.voskresensky at oracle.com
Tue Jun 2 12:01:47 PDT 2015

Hello Tomek,

What is your OS and the version of Studio you use?
What is your compile line for Studio?


On 06/ 2/15 05:51 PM, Tomasz Mikolajczyk wrote:
> Hi,
> What should be the value of a pos variable in the following piece of code?
> auto pos = std::string().find("");
> I couldn't find answer to that and noticed it varies between standard library 
> implementations. For most I've checked pos is 0 (libstdc++, libcxx, msvc). I 
> noticed it is npos for Oracle Solaris SunPRO. I think that both results are 
> explainable. Is it an UB?
> Regards,
> Tomek
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