gistfile1.diff

diff --git a/src/semver.c b/src/semver.c
index f25e06e..c405135 100644
--- a/src/semver.c
+++ b/src/semver.c
@@ -49,6 +49,9 @@ typedef struct semver
     char patchname[]; /* patch name, including the null byte for convenience */
 } semver;
 
+#define DatumGetSemverP(x) ((semver *) PG_DETOAST_DATUM(x))
+#define PG_GETARG_SEMVER_P(n) DatumGetSemverP(PG_GETARG_DATUM(n))
+
 // forward declarations, mostly to shut the compiler up but some are
 // actually necessary.
 char*   emit_semver(semver* version);
@@ -220,7 +223,7 @@ PG_FUNCTION_INFO_V1(semver_out);
 Datum
 semver_out(PG_FUNCTION_ARGS)
 {
-    semver* amount = (void*)PG_GETARG_POINTER(0);
+    semver* amount = (void*)PG_GETARG_SEMVER_P(0);
     char *result;
     result = emit_semver(amount);
 
@@ -241,7 +244,7 @@ PG_FUNCTION_INFO_V1(semver_to_text);
 Datum
 semver_to_text(PG_FUNCTION_ARGS)
 {
-    semver* semver = (void*) PG_GETARG_POINTER(0);
+    semver* semver = (void*)PG_GETARG_SEMVER_P(0);
     char* xxx = emit_semver(semver);
     text* res = cstring_to_text(xxx);
     pfree(xxx);
@@ -286,8 +289,8 @@ PG_FUNCTION_INFO_V1(semver_eq);
 Datum
 semver_eq(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -298,8 +301,8 @@ PG_FUNCTION_INFO_V1(semver_ne);
 Datum
 semver_ne(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -310,8 +313,8 @@ PG_FUNCTION_INFO_V1(semver_le);
 Datum
 semver_le(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -322,8 +325,8 @@ PG_FUNCTION_INFO_V1(semver_lt);
 Datum
 semver_lt(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -334,8 +337,8 @@ PG_FUNCTION_INFO_V1(semver_ge);
 Datum
 semver_ge(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -346,8 +349,8 @@ PG_FUNCTION_INFO_V1(semver_gt);
 Datum
 semver_gt(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -358,8 +361,8 @@ PG_FUNCTION_INFO_V1(semver_cmp);
 Datum
 semver_cmp(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     PG_FREE_IF_COPY(a, 0);
     PG_FREE_IF_COPY(b, 1);
@@ -375,7 +378,7 @@ PG_FUNCTION_INFO_V1(hash_semver);
 Datum
 hash_semver(PG_FUNCTION_ARGS)
 {
-    semver* version = (void*)PG_GETARG_POINTER(0);
+    semver* version = (void*)PG_GETARG_SEMVER_P(0);
     uint32 hash = 0;
     int i;
     Datum patchname;
@@ -399,8 +402,8 @@ PG_FUNCTION_INFO_V1(semver_larger);
 Datum
 semver_larger(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     if (diff >= 0) {
         PG_FREE_IF_COPY(b, 1);
@@ -416,8 +419,8 @@ PG_FUNCTION_INFO_V1(semver_smaller);
 Datum
 semver_smaller(PG_FUNCTION_ARGS)
 {
-    semver* a = (void*)PG_GETARG_POINTER(0);
-    semver* b = (void*)PG_GETARG_POINTER(1);
+    semver* a = (void*)PG_GETARG_SEMVER_P(0);
+    semver* b = (void*)PG_GETARG_SEMVER_P(1);
     int diff = _semver_cmp(a, b);
     if (diff <= 0) {
         PG_FREE_IF_COPY(b, 1);