53 #define OSP_LAZY_STREAM(condition, stream) \  argument
54   !(condition) ? (void)0 : openscreen::internal::Voidify() & (stream)
73 #define OSP_VLOG_IF(condition) !(condition) ? (void)0 : OSP_VLOG  argument
74 #define OSP_LOG_IF(level, condition) !(condition) ? (void)0 : OSP_LOG_##level  argument
76 #define OSP_CHECK(condition) \  argument
77   OSP_LOG_IF(FATAL, !(condition)) << "OSP_CHECK(" << #condition << ") failed: "
92 #define OSP_DCHECK(condition) OSP_CHECK(condition)  argument
105 #define OSP_DCHECK(condition) OSP_EAT_STREAM << !(condition)  argument
119 #define OSP_DVLOG_IF(condition) OSP_VLOG_IF(OSP_DCHECK_IS_ON() && (condition))  argument
120 #define OSP_DLOG_IF(level, condition) \  argument
121   OSP_LOG_IF(level, OSP_DCHECK_IS_ON() && (condition))