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* Changed all copyright messages to include 1993.

Browse source 
* Stubs for faster implementation of local variables (not yet finished)
* Added function name to code object.  Print it for code and function
  objects.  THIS MAKES THE .PYC FILE FORMAT INCOMPATIBLE (the version
  number has changed accordingly)
* Print address of self for built-in methods
* New internal functions getattro and setattro (getattr/setattr with
  string object arg)
* Replaced "dictobject" with more powerful "mappingobject"
* New per-type functio tp_hash to implement arbitrary object hashing,
  and hashobject() to interface to it
* Added built-in functions hash(v) and hasattr(v, 'name')
* classobject: made some functions static that accidentally weren't;
  added __hash__ special instance method to implement hash()
* Added proper comparison for built-in methods and functions
This commit is contained in:
Guido van Rossum 1993-03-29 10:43:31 +00:00
parent 4b1302bd1d
commit 9bfef44d97
97 changed files with 559 additions and 246 deletions
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16
Objects/stringobject.c
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@ -293,6 +293,21 @@ string_compare(a, b)
return (len_a < len_b) ? -1 : (len_a > len_b) ? 1 : 0;
}
static long
string_hash(a)
stringobject *a;
{
register int len = a->ob_size;
register unsigned char *p = (unsigned char *) a->ob_sval;
register long x = *p << 7;
while (--len >= 0)
x = (x + x + x) ^ *p++;
x ^= a->ob_size;
if (x == -1)
x = -2;
return x;
}
static sequence_methods string_as_sequence = {
string_length, /*sq_length*/
string_concat, /*sq_concat*/
@ -318,6 +333,7 @@ typeobject Stringtype = {
0, /*tp_as_number*/
&string_as_sequence, /*tp_as_sequence*/
0, /*tp_as_mapping*/
string_hash, /*tp_hash*/
};
void