---
name: "XmStringByteCompare"
section: "3"
platform: "linux"
package: "openmotif"
version: "2.3.8-4"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/XmStringByteCompare"
---

# XmStringByteCompare(3)

A compound string function that indicates the results of a byte-by-byte comparison

## NAME

**XmStringByteCompare** — A compound string function that indicates the results of a byte-by-byte comparison

## SYNOPSIS

```
#include <Xm/Xm.h>
Boolean XmStringByteCompare(
XmString s1,
XmString s2);
```

## DESCRIPTION

This function is obsolete and exists for compatibility with previous releases. **XmStringByteCompare** returns a Boolean indicating the results of a byte-by-byte comparison of two compound strings.

In general, if two compound strings are created with the same (**char \***) string using **XmStringCreateLocalized** in the same language environment, the compound strings compare as equal. If two compound strings are created with the same (**char \***) string and the same font list element tag set other than **XmFONTLIST\_DEFAULT\_TAG** using **XmStringCreate**, the strings compare as equal.

In some cases, once a compound string is put into a widget, that string is converted into an internal form to allow faster processing. Part of the conversion process strips out unnecessary or redundant information. If an application then does an **XtGetValues** to retrieve a compound string from a widget (specifically, Label and all of its subclasses), it is not guaranteed that the compound string returned is byte-for-byte the same as the string given to the widget originally.

- *s1*

  Specifies a compound string to be compared with *s2*

- *s2*

  Specifies a compound string to be compared with *s1*

## RETURN

Returns True if two compound strings are identical byte-by-byte.

## RELATED

[**XmStringCreate**(3)](/XmStringCreate/3.md) and [**XmStringCreateLocalized**(3)](/XmStringCreateLocalized/3.md).