 |
| Register | Login | |||||
 |
Main
| Memberlist
| Active users
| ACS
| Commons
| Calendar
| Online users Ranks | FAQ | Color Chart | Photo album | IRC Chat |
|
| | ||
|
| Register | Login | |||||
|
Main
| Memberlist
| Active users
| ACS
| Commons
| Calendar
| Online users Ranks | FAQ | Color Chart | Photo album | IRC Chat |
|
| | ||
| 0 user currently in Programming. | 3 guests |
| Acmlm's Board - I2 Archive - Programming - How do I capitolise the first character of a string in C++? |
 |  |  |
| Add to favorites | "RSS" Feed | Next newer thread | Next older thread |
| User | Post | ||
Nebetsu Shmee Level: 55 Posts: 1238/1574 EXP: 1291130 For next: 23059 Since: 09-01-04 From: Nebland Since last post: 3 hours Last activity: 1 hour |
| ||
| How do I capitolise the first character of a string in C++? | |||
|
HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 4039/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
| ||
| I don't know if there's a specific function to do it, but something like this should work: if((MyString[0] >= 'a') && (MyString[0] <= 'z')) //Between a and z? MyString[0] -= 0x20; //Subtract difference between 'a' and 'A' Assuming you're using char arrays, and not some C++ thing I don't know about.  |
|||
Dish Spiny Level: 38 Posts: 324/596 EXP: 355646 For next: 14801 Since: 03-15-04 From: Disch Since last post: 18 days Last activity: 18 days |
| ||
| Instead of -= 0x20 -- I'd just use character constants: MyString[0] += 'A' - 'a'; so you don't have to remember an exact value (this might also work if you change charsets too -- but don't take my word on that one). But yeah -- either way you get the result. |
|||
Parasyte Bullet Bill Level: 35  Posts: 418/514 EXP: 267348 For next: 12588 Since: 05-25-04 Since last post: 104 days Last activity: 32 days |
| ||
| And don't forget to check that the char is actually a lowercase letter... You don't want to 'translate' any non-alpha characters or capital letters. | |||
Banedon Giant Red Paratroopa Level: 55 Posts: 1143/1408 EXP: 1291380 For next: 22809 Since: 03-15-04 From: Michigan Since last post: 101 days Last activity: 90 days |
| ||
| Not sure about C++, but I know that C has the toupper function, which should work properly even when the character is not lowercase. | |||
|
Dish Spiny Level: 38 Posts: 325/596 EXP: 355646 For next: 14801 Since: 03-15-04 From: Disch Since last post: 18 days Last activity: 18 days |
| ||
| oh yeah -- I forgot about those XD But yeah -- since C++ includes all of C, that'd work in C++ too. |
|||
|
Nebetsu Shmee Level: 55 Posts: 1241/1574 EXP: 1291130 For next: 23059 Since: 09-01-04 From: Nebland Since last post: 3 hours Last activity: 1 hour |
| ||
| Thank you everyone. I used HyperHacker's method because it makes more sense than Disch's method. Sorry Disch. Your method is good and would make more sense to a normal mind, but I think HyperHacker's makes more sense because I understand how the ASCII chart works and stuff. It takes the ascii character number and subtracts 0x20 from it and then gives you the new character. Very nice method HyperHacker. | |||
|
Dish Spiny Level: 38 Posts: 327/596 EXP: 355646 For next: 14801 Since: 03-15-04 From: Disch Since last post: 18 days Last activity: 18 days |
| ||
| HH's way was a shorter version of mine. Or rather I should say mine was a longer method of his, since he brought it up first. To clarify the logic behind mine (even though you already pretty much have it solved -- I still feel compelled to explain mine so that the concept is understood): A character in single quotes (such as 'A') is a character constant. It's replaced with the numerical value representing that character at compiletime. To illustrate this with pseudo-code (assuming ASCII char set): My code essentially does the exact same thing as HH's, it just doesn't make you remember the exact numerical difference between upper and lowercase letters in the charset. MyString[0] += 'A' - 'a'; ... is the same as ... MyString[0] += 0x41 - 0x61; ... is the same as ... MyString[0] += -0x20; ... is the same as ... MyString[0] -= 0x20; The only difference is I dodged the use of a numerical constant (0x20) and used easier-to-remember character constants ('A' , 'a') with some simple logic math (add the target character, subtract the current character -- or add the difference between the two). It's the same principle as converting a numerical charater ("0 1 2 3 4 5 6 7 8 9") to a numerical value. They both do the same thing -- but the former doesn't require you to remember an arbitrary value. |
| Add to favorites | "RSS" Feed | Next newer thread | Next older thread |
| Acmlm's Board - I2 Archive - Programming - How do I capitolise the first character of a string in C++? |
| | |
