From 4e2f4e2091103ea571602c444642ff04c2bf5a2f Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Thu, 4 Dec 2014 17:43:01 +0100
Subject: util/StringUtil: add ToUpperASCII()

Replaces g_ascii_strup() and allows building the Vorbis encoder
without GLib.
---
 src/util/StringUtil.cxx | 20 ++++++++++++++++++++
 src/util/StringUtil.hxx |  8 ++++++++
 2 files changed, 28 insertions(+)

(limited to 'src/util')

diff --git a/src/util/StringUtil.cxx b/src/util/StringUtil.cxx
index bcade2b3b..f5b4b7a8b 100644
--- a/src/util/StringUtil.cxx
+++ b/src/util/StringUtil.cxx
@@ -120,3 +120,23 @@ string_array_contains(const char *const* haystack, const char *needle)
 
 	return false;
 }
+
+void
+ToUpperASCII(char *dest, const char *src, size_t size)
+{
+	assert(dest != nullptr);
+	assert(src != nullptr);
+	assert(size > 1);
+
+	char *const end = dest + size - 1;
+
+	do {
+		char ch = *src++;
+		if (ch == 0)
+			break;
+
+		*dest++ = ToUpperASCII(ch);
+	} while (dest < end);
+
+	*dest = 0;
+}
diff --git a/src/util/StringUtil.hxx b/src/util/StringUtil.hxx
index 9beda5441..77fe1be18 100644
--- a/src/util/StringUtil.hxx
+++ b/src/util/StringUtil.hxx
@@ -114,4 +114,12 @@ gcc_pure
 bool
 string_array_contains(const char *const* haystack, const char *needle);
 
+/**
+ * Convert the specified ASCII string (0x00..0x7f) to upper case.
+ *
+ * @param size the destination buffer size
+ */
+void
+ToUpperASCII(char *dest, const char *src, size_t size);
+
 #endif
-- 
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