1 files changed, 7 insertions, 7 deletions
diff --git a/Modules/sre.h b/Modules/sre.h
index a728488..9b0d8b1 100644
--- a/Modules/sre.h
+++ b/Modules/sre.h
@@ -54,17 +54,17 @@ typedef struct {
 
 typedef struct SRE_REPEAT_T {
     Py_ssize_t count;
-    SRE_CODE* pattern; /* points to REPEAT operator arguments */
-    void* last_ptr; /* helper to check for infinite loops */
+    const SRE_CODE* pattern; /* points to REPEAT operator arguments */
+    const void* last_ptr; /* helper to check for infinite loops */
     struct SRE_REPEAT_T *prev; /* points to previous repeat context */
 } SRE_REPEAT;
 
 typedef struct {
     /* string pointers */
-    void* ptr; /* current position (also end of current slice) */
-    void* beginning; /* start of original string */
-    void* start; /* start of current slice */
-    void* end; /* end of original string */
+    const void* ptr; /* current position (also end of current slice) */
+    const void* beginning; /* start of original string */
+    const void* start; /* start of current slice */
+    const void* end; /* end of original string */
     /* attributes for the match object */
     PyObject* string;
     Py_buffer buffer;
@@ -74,7 +74,7 @@ typedef struct {
     /* registers */
     Py_ssize_t lastindex;
     Py_ssize_t lastmark;
-    void** mark;
+    const void** mark;
     int match_all;
     int must_advance;
     /* dynamically allocated stuff */