dmi_string_tolower
Synopsis
#include <opendmi/utils/string.h>
void dmi_string_tolower(char *str);
void dmi_string_toupper(char *str);Description
The dmi_string_tolower function converts every character of the
null-terminated string str to lower case with tolower(3), and the
dmi_string_toupper function converts it to upper case with toupper(3).
The string is changed in place; no memory is allocated.
The string is converted byte by byte, according to the LC_CTYPE category
of the current locale, so that characters taking more than one byte, e.g.
the non-ASCII characters of UTF-8, are not converted.
If str is nullptr, the functions do nothing.