version 4.5.0

PIThread::stopAndWait now returns bool
PIKbdListener on Linux now use piwaitevent_p and can immediately stop
new base method piZeroMemory, also migrate all "memset 0" to piZeroMemory

libs/main/text/pichar.cpp

@@ -73,7 +73,7 @@ ushort charFromCodepage(const char * c, int size, const char * codepage, int * t
 	return buffer;
 #  else
 	mbstate_t state;
-	memset(&state, 0, sizeof(state));
+	piZeroMemory(state);
 	wchar_t wc;
 	ret = mbrtowc(&wc, c, size, &state);
 	// printf("mbtowc = %d\n", ret);
@@ -369,7 +369,7 @@ PICout operator<<(PICout s, const PIChar & v) {
 		UConverter * cc = ucnv_open(__syslocname__, &e);
 		if (cc) {
 			char uc[8];
-			memset(uc, 0, 8);
+			piZeroMemory(uc, 8);
 			e = (UErrorCode)0;
 			ucnv_fromUChars(cc, uc, 8, (const UChar *)(&v.ch), 1, &e);
 			ucnv_close(cc);

libs/main/text/pistring.cpp

@@ -178,7 +178,7 @@ T toDecimal(const PIString & s) {
 
 #define pisprintf(f, v)      \
 	char ch[256];            \
-	memset(ch, 0, 256);      \
+	piZeroMemory(ch, 256);   \
 	snprintf(ch, 256, f, v); \
 	return PIStringAscii(ch);