In what library is strcat_s?

Question

I tried including string.h and stdlib.h, but still get undefined reference compile errors.

This leads me to conclude that it is in a different library that I didn't include. Where is it?

I am using gcc compiler - the code is written in Windows, but is going to be compiled and run on a unix server.

Answer 1

There's an implementation in slibc.

Answer 2

strcat_s can be found in string.h as of C 2011. Generally speaking, only microsoft has implemented these alternative functions.

Answer 3

It is present in string.h on windows platform

You can also refer this cppreference

Defined in header <string.h>

You can better use strcat if you are working on UNIX platform.

Answer 4

It seems it is part of C11 standard:

http://en.cppreference.com/w/c/string/byte/strcat

https://www.securecoding.cert.org/confluence/display/c/API02-C.+Functions+that+read+or+write+to+or+from+an+array+should+take+an+argument+to+specify+the+source+or+target+size

Honestly, I am not very well-versed with when it comes to standards and I can very well be wrong >.<