1 files changed, 13 insertions, 0 deletions
diff --git a/src/complex/I.c b/src/complex/I.c
new file mode 100644
index 00000000..de7929a8
--- /dev/null
+++ b/src/complex/I.c
@@ -0,0 +1,13 @@
+#include <complex.h>
+
+#ifdef __STDC_IEC_559_COMPLEX__
+#define I                                                           _Imaginary_I
+#else
+#define I                                                             _Complex_I
+#endif
+
+/* see appendix G for whether or not to set __STDC_IEC_559_COMPLEX__ == 1 */
+
+/*
+STDC(199901)
+*/