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-rw-r--r--src/Startup.c1
-rw-r--r--src/Write1D.c1
-rw-r--r--src/Write3D.c1
3 files changed, 3 insertions, 0 deletions
diff --git a/src/Startup.c b/src/Startup.c
index 1a02ef4..86c4aea 100644
--- a/src/Startup.c
+++ b/src/Startup.c
@@ -9,6 +9,7 @@
@@*/
+#include <stdio.h>
#include <stdlib.h>
#include <string.h>
diff --git a/src/Write1D.c b/src/Write1D.c
index 779a3da..e750f1d 100644
--- a/src/Write1D.c
+++ b/src/Write1D.c
@@ -17,6 +17,7 @@
@@*/
#include <math.h> /* sqrt(3) */
+#include <stdio.h>
#include <stdlib.h>
#include <string.h>
diff --git a/src/Write3D.c b/src/Write3D.c
index 235cb85..3cc8ea8 100644
--- a/src/Write3D.c
+++ b/src/Write3D.c
@@ -9,6 +9,7 @@
@@*/
+#include <stdio.h>
#include <stdlib.h>
#include <string.h>