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.Dd December 19, 2022
.Dt ISPHONOGRAM 3
.Os
.Sh NAME
.Nm isphonogram ,
.Nm isphonogram_l
.Nd phonographic character test
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In ctype.h
.Ft int
.Fn isphonogram "int c"
.Ft int
.Fn isphonogram_l "int c" "locale_t loc"
.Sh DESCRIPTION
The
.Fn isphonogram
and
.Fn isphonogram_l
functions test for a phonographic character.
.Pp
The
.Fn isphonogram_l
function takes an explicit locale argument, whereas the
.Fn isphonogram
function uses the current global or per-thread locale.
.Sh RETURN VALUES
The
.Fn isphonogram
and
.Fn isphonogram_l
functions return zero if the character tests false and
return non-zero if the character tests true.
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr ctype_l 3 ,
.Xr isideogram 3 ,
.Xr isideogram_l 3 ,
.Xr iswphonogram 3 ,
.Xr iswphonogram_l 3 ,
.Xr xlocale 3
.Sh HISTORY
The
.Fn isphonogram
function appeared in
.Bx 4.4 .