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toupper() function in C

Feb 21, 20241 min read

Using the toupper() function in C The toupper() function in C is used to convert a lowercase character to its uppercase counterpart. For example, the...

toupper() function in C

isxdigit() function in C

Feb 21, 20241 min read

Using the isxdigit() function in C The isxdigit() function in C is used to check whether a character is a hexadecimal digit (0-9,a-f,A-F). The...

isxdigit() function in C

isspace() function in C

Feb 21, 20241 min read

Using the isspace() function in C The isspace() function in C is used to check whether a character is a space. The function takes a character as input...

isspace() function in C

C library <ctype.h> header functions

Jun 22, 20232 min read

The <ctype.h> header file in the C programming language provides several functions to test and manipulate characters. Here are some of the most...

C library <ctype.h> header functions

isgraph() function in C

Jun 21, 20231 min read

Using the isgraph() function in C The isgraph() function in C is used to check whether a character is a graphical character. The function takes a...

isgraph() function in C

ispunct() function in C

Jun 21, 20232 min read

Using the ispunct() function in C The ispunct() function in C is used to check whether a character is a punctuation character. The function takes a...

ispunct() function in C