200   UBool isError = FALSE;  in UnicodeString()  local
201   U16_APPEND(fUnion.fStackFields.fBuffer, i, US_STACKBUF_SIZE, ch, isError);  in UnicodeString()
204   if(!isError) {  in UnicodeString()
1348   UBool isError = FALSE;  in replace()  local
1349   U16_APPEND(buffer, count, U16_MAX_LENGTH, srcChar, isError);  in replace()
1353   return doReplace(start, _length, buffer, 0, isError ? 0 : count);  in replace()
1360   UBool isError = FALSE;  in append()  local
1361   U16_APPEND(buffer, _length, U16_MAX_LENGTH, srcChar, isError);  in append()
1364   return isError ? *this : doAppend(buffer, 0, _length);  in append()
1837   UBool isError = FALSE;  in appendCodePoint()  local
1838   U16_APPEND(buffer, cLength, U16_MAX_LENGTH, c, isError);  in appendCodePoint()
1839   return !isError && str.doAppend(buffer, 0, cLength).isWritable();  in appendCodePoint()