(C++) cctype.h

 

cctype.h is the STL header file for determining character types like lowercase and uppercase.

 

cctype.h contains the definitions of (incomplete list):

• std::isalnum
• std::isalpha
• std::iscntrl
• std::isdigit
• std::isgraph
• std::islower
• std::isprint
• std::ispunct
• std::isspace
• std::isupper
• std::isxdigit
• std::tolower
• std::toupper

 

 

 

 

 

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#include <cctype>