diff --git a/include/rigid_paradise/string.h b/include/rigid_paradise/string.h
new file mode 100644
index 0000000..2073cc6
--- /dev/null
+++ b/include/rigid_paradise/string.h
@@ -0,0 +1,10 @@
+#pragma once
+#include <stddef.h>
+
+
+namespace cstring{
+	constexpr size_t strlen( const char* s ) noexcept
+	{
+	return *s ? 1 + strlen(s + 1) : 0;
+	}
+}
\ No newline at end of file
diff --git a/src/yes/yes.cpp b/src/yes/yes.cpp
index dd5e245..5af901d 100644
--- a/src/yes/yes.cpp
+++ b/src/yes/yes.cpp
@@ -3,7 +3,7 @@
 #include <string>
 #include <sstream>
 #include <rigid_paradise/systems/stdio.h>
-#include <string.h>
+#include <rigid_paradise/string.h>
 
 #ifndef EXIT_FAILURE
 #define EXIT_FAILURE -1
@@ -17,7 +17,7 @@ usage: yes [STRING]*\n\
        yes --help\n\
        yes --version\n\
            Display this text.\n";
-const size_t help_len = strlen(help);
+const size_t help_len = cstring::strlen(help);
 
 int main(int argc, char** argv)
 {