This is in accordance with the ANSI C standard. The linker is case insensitive , it sees everything in lowercase. To the linker, ABC, abc, and Abc refer to the same identifier abc.
Read moreWhy is case sensitive important?
Case sensitivity is important because it affects the way the language interprets the symbols used . The uniqueness of ‘a’ versus ‘A’ is supported by the language. In other words, it matches the internal representation.
Read moreDoes C is case sensitive or not?
In programming languages Some programming languages are case-sensitive for their identifiers (C, C++, Java, C#, Verilog, Ruby, Python and Swift).
Read moreWhy does case sensitive mean?
In computing, if a written word such as a password is case-sensitive, it must be written in a particular form, for example using all capital letters or all small letters, in order for the computer to recognize it .
Read more