Small cleanups
Change-Id: Ib66507b8934bc8019a762d24d5311411e044ec84
diff --git a/native/jni/src/char_utils.h b/native/jni/src/char_utils.h
index edd96bb..b30677f 100644
--- a/native/jni/src/char_utils.h
+++ b/native/jni/src/char_utils.h
@@ -17,21 +17,23 @@
#ifndef LATINIME_CHAR_UTILS_H
#define LATINIME_CHAR_UTILS_H
+#include <cctype>
+
namespace latinime {
-inline static int isAsciiUpper(unsigned short c) {
- return c >= 'A' && c <= 'Z';
+inline static bool isAsciiUpper(unsigned short c) {
+ return isupper(static_cast<int>(c)) != 0;
}
inline static unsigned short toAsciiLower(unsigned short c) {
return c - 'A' + 'a';
}
-inline static int isAscii(unsigned short c) {
- return c <= 127;
+inline static bool isAscii(unsigned short c) {
+ return isascii(static_cast<int>(c)) != 0;
}
-unsigned short latin_tolower(unsigned short c);
+unsigned short latin_tolower(const unsigned short c);
/**
* Table mapping most combined Latin, Greek, and Cyrillic characters