1 files changed, 12 insertions, 0 deletions
diff --git a/euler/source/strings/strlen.cpp b/euler/source/strings/strlen.cpp
new file mode 100644
index 0000000..7a6fe2a
--- /dev/null
+++ b/euler/source/strings/strlen.cpp
@@ -0,0 +1,12 @@
+#include <cstring>
+
+namespace std {
+
+  size_t strlen(const char *str) {
+    size_t len = 0;
+    while (str[len])
+      ++len;
+    return len;
+  }
+
+}