Prefer intmax_t to int64_t in module code

* modules/mod-test/mod-test.c (sum, Fmod_test_sum):
* src/emacs-module.c (module_extract_integer)
(module_make_integer):
* src/emacs-module.h (struct emacs_env_25):
Prefer intmax_t to int64_t.  This doesn’t change the generated
code on any of the machines Emacs currently ports to, but it’s
at least in theory more future-proof as C99 doesn’t guarantee
that int64_t exists.

1 files changed, 5 insertions, 4 deletions

diff --git a/modules/mod-test/mod-test.c b/modules/mod-test/mod-test.c
index e27fb582355..79f347f04ab 100644
--- a/modules/mod-test/mod-test.c
+++ b/modules/mod-test/mod-test.c
@@ -31,7 +31,8 @@ Fmod_test_return_t (emacs_env *env, int nargs, emacs_value args[], void *data)
 }
 
 /* Expose simple sum function.  */
-static int64_t sum (int64_t a, int64_t b)
+static intmax_t
+sum (intmax_t a, intmax_t b)
 {
   return a + b;
 }
@@ -39,10 +40,10 @@ static int64_t sum (int64_t a, int64_t b)
 static emacs_value
 Fmod_test_sum (emacs_env *env, int nargs, emacs_value args[], void *data)
 {
-  int64_t a = env->extract_integer (env, args[0]);
-  int64_t b = env->extract_integer (env, args[1]);
+  intmax_t a = env->extract_integer (env, args[0]);
+  intmax_t b = env->extract_integer (env, args[1]);
 
-  int64_t r = sum(a, b);
+  intmax_t r = sum (a, b);
 
   return env->make_integer (env, r);
 }