---
name: "isphonogram"
section: "3"
platform: "macos"
package: "Libc"
version: "1752.120.2"
release: "macOS 26.5"
platforms: ["freebsd", "macos"]
url: "https://new.carta.tech/isphonogram"
---

# isphonogram(3)

phonographic character test

## NAME

**isphonogram** – phonographic character test

## LIBRARY

Standard C Library (libc, -lc)

## SYNOPSIS

**#include \<ctype.h\>**

*int*\

**isphonogram**(*int c*);

## DESCRIPTION

The **isphonogram**() function tests for a phonographic character.

## RETURN VALUES

The **isphonogram**() function returns zero if the character tests false and returns non-zero if the character tests true.

## SEE ALSO

[ctype(3)](/ctype/3.md), [isideogram(3)](/isideogram/3.md), [iswphonogram(3)](/iswphonogram/3.md), isalnum\_l

## HISTORY

The **isphonogram**() function appeared in 4.4BSD.