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import.c: Fix a GCC warning (#4822)

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Fix the warning:

Python/import.c: warning: comparison between signed and unsigned integer expressions
     if ((i + n + 1) <= PY_SSIZE_T_MAX / sizeof(struct _inittab)) {
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Victor Stinner 2017-12-12 23:29:28 +01:00 • committed by GitHub
parent 721e25c653
commit d233796f7d
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Python/import.c
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@ -2308,7 +2308,7 @@ PyImport_ExtendInittab(struct _inittab *newtab)
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
/* Allocate new memory for the combined table */ /* Allocate new memory for the combined table */
if ((i + n + 1) <= PY_SSIZE_T_MAX / sizeof(struct _inittab)) { if ((i + n + 1) <= PY_SSIZE_T_MAX / (Py_ssize_t)sizeof(struct _inittab)) {
size_t size = sizeof(struct _inittab) * (i + n + 1); size_t size = sizeof(struct _inittab) * (i + n + 1);
p = PyMem_RawRealloc(inittab_copy, size); p = PyMem_RawRealloc(inittab_copy, size);
} }