C++ converting variable integer to string

Question

The problem I am encountering is the warning message I get when running the c++ .cpp code. Is there another way I can convert an integer to a string.

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Here is a snapshot of the code I am running, and where the problem is:

string empId2 = to_string(empId);

Either your library doesn't support `to_string` (introduced with c++11), or you need to compile in c++11 standards mode or later (`-std=c++11` on gcc and clang). — user657267, Oct 27 '15 at 00:58

score 1 · Answer 1 · answered Oct 27 '15 at 01:11

1

You are missing a header file. Check your #include directives. That one is gcc's standart warning for cases like that.

answered Oct 27 '15 at 01:11

score 0 · Answer 2 · answered Oct 27 '15 at 00:59

0

This warning is shown when the function, in this case to_string is defined after it is used. Either move the definition of the function above or in a new file and include its header.

answered Oct 27 '15 at 00:59

Justice

290
2
7

Why would he define `to_string` himself? – Lightness Races in Orbit Oct 27 '15 at 01:08
He doesn't have to, he can include – Justice Oct 27 '15 at 01:09

score -1 · Answer 3 · answered Oct 27 '15 at 01:04

-1

You can use std ostringstream to convert from any type to string e.g:

std::ostringstream oss;
oss<<empId;
string empIdStr = oss.str();

answered Oct 27 '15 at 01:04

Karan Sheth

1

Not "any type", and you missed the point of using `to_string`. – Lightness Races in Orbit Oct 27 '15 at 01:07

C++ converting variable integer to string

3 Answers3