Man page - fcstrsetaddfilename(3)
Packages contains this manual
Manual
FcStrSetAddFilename
NAMESYNOPSIS
DESCRIPTION
NAME
FcStrSetAddFilename - add a filename to a string set
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcBool FcStrSetAddFilename (FcStrSet * set , const FcChar8 * s );
DESCRIPTION
Adds a copy s to set , The copy is created with FcStrCopyFilename so that leading ’˜’ values are replaced with the value of the HOME environment variable.