Merge branch 'PHP-8.3'

* PHP-8.3:
  ext/bcmath: Fixed bug (bcpowmod() with mod = -1 returns 1 when it must be 0)

Author: Girgias

ext/bcmath/libbcmath/src/raisemod.c

@@ -30,6 +30,7 @@
 *************************************************************************/
 
 #include "bcmath.h"
+#include "private.h"
 #include <stddef.h>
 
 /* Raise BASE to the EXPO power, reduced modulo MOD.  The result is placed in RESULT. */
@@ -65,7 +66,7 @@ raise_mod_status bc_raisemod(bc_num base, bc_num expo, bc_num mod, bc_num *resul
 	bc_init_num(&parity);
 
 	/* Do the calculation. */
-	if (!bc_compare(modulus, BCG(_one_))) {
+	if (!_bc_do_compare(modulus, BCG(_one_), false)) {
 		bc_free_num (&temp);
 		temp = bc_new_num (1, scale);
 	} else {

ext/bcmath/tests/bcpowmod_with_mod_1.phpt

@@ -0,0 +1,16 @@
+--TEST--
+bcpowmod() must return 0 when mod is +1 or -1
+--EXTENSIONS--
+bcmath
+--FILE--
+<?php
+var_dump(bcpowmod(5, 0, 1));
+var_dump(bcpowmod(5, 0, 1, 3));
+var_dump(bcpowmod(5, 0, -1));
+var_dump(bcpowmod(5, 0, -1, 3));
+?>
+--EXPECT--
+string(1) "0"
+string(5) "0.000"
+string(1) "0"
+string(5) "0.000"