From 95c021fb7c302096763fbef954293802a8b7b29e Mon Sep 17 00:00:00 2001
From: George Rhoten <grhoten@users.noreply.github.com>
Date: Fri, 16 Apr 2004 05:47:01 +0000
Subject: [PATCH] ICU-3499 Add u_feof()

X-SVN-Rev: 14992
---
 icu4c/source/extra/ustdio/ufile.c          | 20 +++++++++++++++++---
 icu4c/source/extra/ustdio/unicode/ustdio.h | 16 ++++++++++++++--
 2 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/icu4c/source/extra/ustdio/ufile.c b/icu4c/source/extra/ustdio/ufile.c
index 8454d9a1828..7c3c9a61c51 100644
--- a/icu4c/source/extra/ustdio/ufile.c
+++ b/icu4c/source/extra/ustdio/ufile.c
@@ -114,12 +114,26 @@ u_fopen(const char    *filename,
     return result;
 }
 
+U_CAPI UBool U_EXPORT2
+u_feof(UFILE  *f)
+{
+    UBool endOfBuffer;
+    if (f == NULL) {
+        return TRUE;
+    }
+    endOfBuffer = (UBool)(f->str.fPos >= f->str.fLimit);
+    if (f->fFile != NULL) {
+        return endOfBuffer && feof(f->fFile);
+    }
+    return endOfBuffer;
+}
+
 U_CAPI void U_EXPORT2
 u_fflush(UFILE *file)
 {
-  ufile_flush_translit(file);
-  fflush(file->fFile);
-  /* TODO: flush input */
+    ufile_flush_translit(file);
+    fflush(file->fFile);
+    /* TODO: flush input */
 }
 
 U_CAPI void
diff --git a/icu4c/source/extra/ustdio/unicode/ustdio.h b/icu4c/source/extra/ustdio/unicode/ustdio.h
index 142d91118aa..21f719ac340 100644
--- a/icu4c/source/extra/ustdio/unicode/ustdio.h
+++ b/icu4c/source/extra/ustdio/unicode/ustdio.h
@@ -1,7 +1,7 @@
 /*
 ******************************************************************************
 *
-*   Copyright (C) 1998-2003, International Business Machines
+*   Copyright (C) 1998-2004, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 ******************************************************************************
@@ -41,7 +41,8 @@
  * Make sure that #, blank and precision in the printf format specification
     works.
  * Make sure that * in the scanf format specification works.
- * Each UFILE takes up at least 2KB. This should be really reduced.
+ * Each UFILE takes up at least 2KB.
+    Look into adding setvbuf() for configurable buffers.
  * This library does buffering. The OS should do this for us already. Check on
     this, and remove it from this library, if this is the case. Double buffering
     wastes a lot of time and space.
@@ -167,6 +168,17 @@ u_finit(FILE        *f,
 U_CAPI void U_EXPORT2
 u_fclose(UFILE *file);
 
+/**
+ * Tests if the UFILE is at the end of the file stream.
+ * @param f The UFILE from which to read.
+ * @return Returns TRUE after the first read operation that attempts to
+ * read past the end of the file. It returns FALSE if the current position is
+ * not end of file.
+ * @draft
+*/
+U_CAPI UBool U_EXPORT2
+u_feof(UFILE  *f);
+
 /**
  * Flush output of a UFILE. Implies a flush of
  * converter/transliterator state. (That is, a logical break is