AVR Libc Library Reference
int isalnum(int __c)
int isalpha(int __c)
int isascii(int __c)
int isblank(int __c)
int iscntrl(int __c)
int isdigit(int __c)
int isgraph(int __c)
int islower(int __c)
int isprint(int __c)
int ispunct(int __c)
int isspace(int __c)
int isupper(int __c)
int isxdigit(int __c)
int toascii(int __c)
int tolower(int __c)
int toupper(int __c)
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
