I'm learning C++ right now, but I can't seem to find out how to make an input be accepted whether or not there are any capitals anywhere. For example, if someone input "sAndwiCh" in a case in a switch statement desiring "sandwich," how could I perform the following action by making the program allow the input to be any case of every letter? Thank you.
2
- 2Have you tried searching for "c++ case insensitive compare" ?Borgleader– Borgleader2017-11-08 01:42:11 +00:00Commented Nov 8, 2017 at 1:42
- see stackoverflow.com/questions/313970Marichyasana– Marichyasana2017-11-08 01:45:00 +00:00Commented Nov 8, 2017 at 1:45
Add a comment |
1 Answer
Use the toupper() and/or the tolower() functions of the ctype.h header file. So, to make your comparisons:
char input[3] = {'A', 'b', 'C'}; unsigned int index = 0U; unsigned int outputVal = 0U; while(index < 3) { switch(tolower(input[index])) { case 'a': outputVal += 1; break; case 'b': outputVal += 2; break; case 'c': outputVal += 3; break; } ++index; } At the end of this, outputVal should have a value of 6.
