1 files changed, 54 insertions, 0 deletions
diff --git a/euler/source/io/fopen.cpp b/euler/source/io/fopen.cpp
new file mode 100644
index 0000000..8d47bf0
--- /dev/null
+++ b/euler/source/io/fopen.cpp
@@ -0,0 +1,54 @@
+#include <stdint.h>
+#include <cstring>
+#include <cstdio>
+
+namespace std {
+
+  FILE *fopen(const char *filename, const char *mode) {
+
+    bool read = false;
+    bool write = false;
+    bool append = false;
+    bool extended = false;
+    bool create = false;
+
+    for (const char *p = mode; *p; ++p)
+      switch (*p) {
+      case 'r':
+        read = true;
+        continue;
+      case 'w':
+        write = true;
+        continue;
+      case 'a':
+        append = true;
+        continue;
+      case '+':
+        extended = true;
+        continue;
+      case 'x':
+        create = true;
+        continue;
+      default:
+        continue;
+      }
+
+    __euler_stream_handle handle;
+    __euler_stream_result res = __euler_open_file(
+      filename, strlen(filename), handle, write || append, create);
+
+    if (res != __EULER_SR_SUCCESS)
+      return 0;
+
+    euler::file_stream *f = new euler::file_stream(handle, read || extended,
+      write || extended, write && !append, append);
+
+    if (f->good)
+      return f;
+
+    delete f;
+    return 0;
+
+  }
+
+}