diff --git a/include/sta/assert.hpp b/include/sta/assert.hpp
index 11c92e4..9974f11 100644
--- a/include/sta/assert.hpp
+++ b/include/sta/assert.hpp
@@ -72,6 +72,21 @@ namespace sta
  * @param msg   Message shown on failure
  */
 #  define STA_ASSERT_MSG(expr, msg)     ((void)(!(expr) && (sta::assert_failed(msg, __FILE__, __LINE__), 1) && (STA_HALT(), 1)))
+/**
+ * @brief Assert expression if condition is true.
+ *
+ * @param cond  Condition
+ * @param expr  Expression
+ */
+#  define STA_ASSERT_COND(cond, expr)   ((void)((cond) ? STA_ASSERT(expr) : 1))
+/**
+ * @brief Assert expression if condition is true.
+ *
+ * @param cond  Condition
+ * @param expr  Expression
+ * @param msg   Message shown on failure
+ */
+#  define STA_ASSERT_COND_MSG(cond, expr, msg)  ((void)((cond) ? STA_ASSERT_MSG(expr, msg)))
 
 #else // !STA_ASSERT_ENABLE
 
@@ -88,6 +103,21 @@ namespace sta
  * @param msg   Message shown on failure
  */
 #  define STA_ASSERT_MSG(expr, msg)     ((void)0)
+/**
+ * @brief Assert expression if condition is true.
+ *
+ * @param cond  Condition
+ * @param expr  Expression
+ */
+#  define STA_ASSERT_COND(cond, expr)   ((void)0)
+/**
+ * @brief Assert expression if condition is true.
+ *
+ * @param cond  Condition
+ * @param expr  Expression
+ * @param msg   Message shown on failure
+ */
+#  define STA_ASSERT_COND_MSG(cond, expr, msg)  ((void)0)
 
 #endif // !STA_ASSERT_ENABLE