Look up the properties for a given codepoint.
@param codepoint The Unicode codepoint.
@returns A pointer to a (constant) struct containing information about the codepoint. @par If the codepoint is unassigned or invalid, a pointer to a special struct is returned in which category is 0 (@ref UTF8PROC_CATEGORY_CN).
See Implementation
Look up the properties for a given codepoint.
@param codepoint The Unicode codepoint.
@returns A pointer to a (constant) struct containing information about the codepoint. @par If the codepoint is unassigned or invalid, a pointer to a special struct is returned in which category is 0 (@ref UTF8PROC_CATEGORY_CN).