.Dt DIGITTOINT 3
.Os
.Sh NAME
-.Nm digittoint
+.Nm digittoint ,
+.Nm digittoint_l
.Nd convert a numeric character to its integer value
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In ctype.h
.Ft int
-.Fn digittoint "int c"
+.Fo digittoint
+.Fa "int c"
+.Fc
+.In xlocale.h
+.In ctype.h
+.Ft int
+.Fo digittoint_l
+.Fa "int c"
+.Fa "locale_t loc"
+.Fc
.Sh DESCRIPTION
The
.Fn digittoint
function converts a numeric character to its corresponding integer value.
The character can be any decimal digit or hexadecimal digit.
With hexadecimal characters, the case of the values does not matter.
+.Pp
+While the
+.Fn digittoint
+function uses the current locale, the
+.Fn digittoint_l
+function may be passed a locale directly. See
+.Xr xlocale 3
+for more information.
.Sh RETURN VALUES
The
.Fn digittoint
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr isdigit 3 ,
-.Xr isxdigit 3
+.Xr isxdigit 3 ,
+.Xr xlocale 3