bpo-38156: Fix compiler warning in PyOS_StdioReadline() (GH-21721)

incr cannot be larger than INT_MAX: downcast to int explicitly.
(cherry picked from commit bde48fd8110cc5f128d5db44810d17811e328a24)

Co-authored-by: Victor Stinner <vstinner@python.org>

diff --git a/Parser/myreadline.c b/Parser/myreadline.c
index 29b254f771f16c98dcaa0614496bddbe343ca091..e8e57738f3377fbbc77c5587a96c279551125b36 100644 (file)
--- a/Parser/myreadline.c
+++ b/Parser/myreadline.c
@@ -318,7 +318,7 @@ PyOS_StdioReadline(FILE *sys_stdin, FILE *sys_stdout, const char *prompt)
             return NULL;
         }
         p = pr;
-        int err = my_fgets(tstate, p + n, incr, sys_stdin);
+        int err = my_fgets(tstate, p + n, (int)incr, sys_stdin);
         if (err == 1) {
             // Interrupt
             PyMem_RawFree(p);