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SF bug #422177: Results from .pyc differs from .py

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Store floats and doubles to full precision in marshal.
Test that floats read from .pyc/.pyo closely match those read from .py.
Declare PyFloat_AsString() in floatobject header file.
Add new PyFloat_AsReprString() API function.
Document the functions declared in floatobject.h.
This commit is contained in:
Tim Peters 2001-05-08 15:19:57 +00:00
parent 569c09c013
commit 72f98e9b83
4 changed files with 35 additions and 9 deletions
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8
Python/marshal.c
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@ -149,9 +149,8 @@ w_object(PyObject *v, WFILE *p)
w_short(ob->ob_digit[i], p);
}
else if (PyFloat_Check(v)) {
extern void PyFloat_AsString(char *, PyFloatObject *);
char buf[256]; /* Plenty to format any double */
PyFloat_AsString(buf, (PyFloatObject *)v);
PyFloat_AsReprString(buf, (PyFloatObject *)v);
n = strlen(buf);
w_byte(TYPE_FLOAT, p);
w_byte(n, p);
@ -159,20 +158,19 @@ w_object(PyObject *v, WFILE *p)
}
#ifndef WITHOUT_COMPLEX
else if (PyComplex_Check(v)) {
extern void PyFloat_AsString(char *, PyFloatObject *);
char buf[256]; /* Plenty to format any double */
PyFloatObject *temp;
w_byte(TYPE_COMPLEX, p);
temp = (PyFloatObject*)PyFloat_FromDouble(
PyComplex_RealAsDouble(v));
PyFloat_AsString(buf, temp);
PyFloat_AsReprString(buf, temp);
Py_DECREF(temp);
n = strlen(buf);
w_byte(n, p);
w_string(buf, n, p);
temp = (PyFloatObject*)PyFloat_FromDouble(
PyComplex_ImagAsDouble(v));
PyFloat_AsString(buf, temp);
PyFloat_AsReprString(buf, temp);
Py_DECREF(temp);
n = strlen(buf);
w_byte(n, p);