ctype.h

If you want to convert toupper in c then read this blogpost. What is toupper in c? toupper is a c library function which converts lowercase letters to uppercase letters.…

What is tolower in c programming? tolower in c is a c library function which converts given uppercase letters to lowercase letters. This function is defined in ctype.h header file.…

If you want convert islower in c then read this blog post. What is islower in c programming? islower function checks whether a given character is in lowercase or not. This function…

If you want convert isupper in c then read this blog post. What is isupper in c programming? isupper function checks whether a given character is in uppercase or not. This function…

What is isalnum in c programming? isalnum in c checks the input parameter is alphanumeric or not. This function is defined in ctype.h header file. This function returns non-zero digit…

What is isdigit in c programming? isdigit in c checks the passed character is decimal digit or not. This function is defined in ctype.h header file. This function returns non-zero…

What is ispunct in c programming? ispunct in c checks whether the passed character is punctuation character or not. Punctuation character is any graphic character. It should not be an…

What is isxdigit in c programming? isxdigit in c checks the passed character is hexadecimal digit or not. This function is defined in ctype.h header file. This function returns non-zero…

If you want know isprint in c then read this blog post. What is isprint in c programming? isprint in c is used to check whether the passed character is…

What is isblank in c programming? isblank in c checks whether the passed character is blank or not. This function also considers tabspace. This function is defined in ctype.h header…