util/StringUtil: add ToUpperASCII()

Replaces g_ascii_strup() and allows building the Vorbis encoder
without GLib.

1 files changed, 20 insertions, 0 deletions

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;
+}