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C programming string
The document discusses C functions for reading and writing single characters. It describes getchar() which reads a character from keyboard input and stores it in a variable. Putchar() displays a given character on the screen. It also mentions functions like toupper() and tolower() to convert case and isupper() and islower() to check case.
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C programming string
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- 10. NOTES Single characterfunction getchar() which reads a character from the keyboard following statement reads a character using getchar () and stores it in variable ch. Ch= getchar() getchar () waits for the character input a until a character is typed at the keyboard. Putchar() putchar() displays the given character on the screen at the current cursor position . following statement displays character (‘b’) on the screen. Put (‘b’)
- 11. toupper() = convertlowercase character to uppercase. tolower() = convert uppercase character to lowercase. isupper() = To check either the string is in uppercase or not. islower() = To check either the string is in lowercase or not. •toupper(),tolower(),isupper(),islower() have defined within <ctype.h> NOTES