Does upper and lower case matter in C++?

In programming languages Others are case-insensitive (i.e., not case-sensitive), such as ABAP, Ada, most BASICs (an exception being BBC BASIC), Fortran, Ring, SQL (for the syntax, and for some vendor implementations, e.g. Microsoft SQL Server, the data itself) and Pascal.

C++ is a case sensitive language . This means that lower case and upper case letters are read as different letters.20 Ara 2016

Answer: Yes. C language instructions/commands/functions and everything used in C program are case sensitive .

C++ is a programming language that is case-sensitive, so all keywords must be minuscule. As it handles upper and lower-case characters differently , C++ is case sensitive. So, C++ is case sensitive.25 Kas 2019