[Python-checkins] bpo-38156: Fix compiler warning in PyOS_StdioReadline() (GH-21721)

[Victor Stinner]

https://github.com/python/cpython/commit/bde48fd8110cc5f128d5db44810d17811e328a24
commit: bde48fd8110cc5f128d5db44810d17811e328a24
branch: master
author: Victor Stinner <vstinner at python.org>
committer: GitHub <noreply at github.com>
date: 2020-08-04T02:38:16+02:00
summary:

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

incr cannot be larger than INT_MAX: downcast to int explicitly.

files:
M Parser/myreadline.c

diff --git a/Parser/myreadline.c b/Parser/myreadline.c
index a49c9d892dda9..143b41f1eab95 100644
--- a/Parser/myreadline.c
+++ b/Parser/myreadline.c
@@ -317,7 +317,7 @@ 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);