Mercurial > cpython-lru_cache-weakref
annotate Include/stringobject.h @ 1356:043da19302ef legacy-trunk
Several optimizations and speed improvements.
cstubs: Use Matrix type instead of float[4][4].
| author | Sjoerd Mullender <sjoerd@acm.org> |
|---|---|
| date | Fri, 22 Oct 1993 12:04:32 +0000 |
| parents | 519c25039c6a |
| children | 1940892d2fe3 |
| rev | line source |
|---|---|
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* Added support for X11 modules.
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1 #ifndef Py_STRINGOBJECT_H |
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519c25039c6a
* Added support for X11 modules.
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2 #define Py_STRINGOBJECT_H |
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519c25039c6a
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parents:
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3 #ifdef __cplusplus |
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4 extern "C" { |
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5 #endif |
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* Added support for X11 modules.
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parents:
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6 |
| 145 | 7 /*********************************************************** |
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* Changed many files to use mkvalue() instead of newtupleobject().
Guido van Rossum <guido@python.org>
parents:
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8 Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, |
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* Changed many files to use mkvalue() instead of newtupleobject().
Guido van Rossum <guido@python.org>
parents:
790
diff
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9 Amsterdam, The Netherlands. |
| 145 | 10 |
| 11 All Rights Reserved | |
| 12 | |
| 13 Permission to use, copy, modify, and distribute this software and its | |
| 14 documentation for any purpose and without fee is hereby granted, | |
| 15 provided that the above copyright notice appear in all copies and that | |
| 16 both that copyright notice and this permission notice appear in | |
| 17 supporting documentation, and that the names of Stichting Mathematisch | |
| 18 Centrum or CWI not be used in advertising or publicity pertaining to | |
| 19 distribution of the software without specific, written prior permission. | |
| 20 | |
| 21 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO | |
| 22 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 23 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE | |
| 24 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 25 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 26 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
| 27 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 28 | |
| 29 ******************************************************************/ | |
| 30 | |
| 6 | 31 /* String object interface */ |
| 32 | |
| 33 /* | |
| 34 123456789-123456789-123456789-123456789-123456789-123456789-123456789-12 | |
| 35 | |
| 36 Type stringobject represents a character string. An extra zero byte is | |
| 37 reserved at the end to ensure it is zero-terminated, but a size is | |
| 38 present so strings with null bytes in them can be represented. This | |
| 39 is an immutable object type. | |
| 40 | |
| 41 There are functions to create new string objects, to test | |
| 42 an object for string-ness, and to get the | |
| 43 string value. The latter function returns a null pointer | |
| 44 if the object is not of the proper type. | |
| 45 There is a variant that takes an explicit size as well as a | |
| 46 variant that assumes a zero-terminated string. Note that none of the | |
| 47 functions should be applied to nil objects. | |
| 48 */ | |
| 49 | |
| 50 /* NB The type is revealed here only because it is used in dictobject.c */ | |
| 51 | |
| 52 typedef struct { | |
| 53 OB_VARHEAD | |
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54 #ifdef CACHE_HASH |
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Several optimizations and speed improvements.
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55 long ob_shash; |
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043da19302ef
Several optimizations and speed improvements.
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parents:
1329
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56 #endif |
| 6 | 57 char ob_sval[1]; |
| 58 } stringobject; | |
| 59 | |
| 60 extern typeobject Stringtype; | |
| 61 | |
| 62 #define is_stringobject(op) ((op)->ob_type == &Stringtype) | |
| 63 | |
| 64 extern object *newsizedstringobject PROTO((char *, int)); | |
| 65 extern object *newstringobject PROTO((char *)); | |
| 66 extern unsigned int getstringsize PROTO((object *)); | |
| 67 extern char *getstringvalue PROTO((object *)); | |
| 68 extern void joinstring PROTO((object **, object *)); | |
| 69 extern int resizestring PROTO((object **, int)); | |
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1252
c4cd0d9d8281
* Changed many files to use mkvalue() instead of newtupleobject().
Guido van Rossum <guido@python.org>
parents:
790
diff
changeset
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70 extern object *formatstring PROTO((object *, object *)); |
| 6 | 71 |
| 72 /* Macro, trading safety for speed */ | |
| 73 #define GETSTRINGVALUE(op) ((op)->ob_sval) | |
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1329
519c25039c6a
* Added support for X11 modules.
Guido van Rossum <guido@python.org>
parents:
1252
diff
changeset
|
74 |
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519c25039c6a
* Added support for X11 modules.
Guido van Rossum <guido@python.org>
parents:
1252
diff
changeset
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75 #ifdef __cplusplus |
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519c25039c6a
* Added support for X11 modules.
Guido van Rossum <guido@python.org>
parents:
1252
diff
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76 } |
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519c25039c6a
* Added support for X11 modules.
Guido van Rossum <guido@python.org>
parents:
1252
diff
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77 #endif |
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519c25039c6a
* Added support for X11 modules.
Guido van Rossum <guido@python.org>
parents:
1252
diff
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78 #endif /* !Py_STRINGOBJECT_H */ |