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Preserve sign of -0.0 when result is run through marshal.

This commit is contained in:
Raymond Hettinger 2005-02-23 13:37:55 +00:00
parent 71dcc3e9b4
commit e63a078635
1 changed files with 4 additions and 2 deletions
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6
Python/compile.c
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@ -545,7 +545,7 @@ fold_binops_on_constants(unsigned char *codestr, PyObject *consts)
static int
fold_unaryops_on_constants(unsigned char *codestr, PyObject *consts)
{
PyObject *newconst, *v;
PyObject *newconst=NULL, *v;
int len_consts, opcode;
/* Pre-conditions */
@ -557,7 +557,9 @@ fold_unaryops_on_constants(unsigned char *codestr, PyObject *consts)
opcode = codestr[3];
switch (opcode) {
case UNARY_NEGATIVE:
newconst = PyNumber_Negative(v);
/* Preserve the sign of -0.0 */
if (PyObject_IsTrue(v) == 1)
newconst = PyNumber_Negative(v);
break;
case UNARY_CONVERT:
newconst = PyObject_Repr(v);