| .DATA? 지시어 (0) | 2011.07.31 |
|---|---|
| x86 register (2) | 2011.07.17 |
| PowerPC(PPC) 어셈관련 내용 (0) | 2011.04.04 |
| 어셈블리 메모리 참조 (x86 memory addressing) (0) | 2010.05.03 |
| 어셈블리 언어 기본 템플릿 (0) | 2010.04.17 |
#include "stdio.h"
int main(int argc, char *argv[])
{
int x = 1;
printf("%d %d %d\n", ++x, x, x++);
return 0;
}You're running into two issues: 1. Undefined behavior -- you are attempting to modify the value of an object more than once between sequence points, and the Standard imposes no requirement on how to handle that behavior. Basically, any expression of the forms: i = i++; j = k++ * k++; foo(i,i++,--i); invoke undefined behavior. Read up on the semantics of the "++" and "--" operators in an *authoritative* reference (the Standard would obviously be one, but also K&R2 or H&S5); they don't work the way most people think they should. 2. Order of evaluation -- AFAIK, there's no requirement that expressions in a function parameter list be evaluated in any particular order. At first blush, it *looks* like the arguments were evaluated from right to left (if x = 1, then x++ evaluates to 1, with the side effect that x == 2, and ++x evaluates to 3, with the side effect that x == 3), but given that you've invoked undefined behavior the actual reason may be something else entirely. [링크 : http://bytes.com/topic/c/answers/222558-operation-x-may-undefined] |
| $ gcc -Wall cc_test.c cc_test.c: In function ‘main’: cc_test.c:6: warning: operation on ‘x’ may be undefined cc_test.c:6: warning: operation on ‘x’ may be undefined |
| $ ./a.out 3 3 1 |
| 2 1 1 |
| 3 3 1 |
| 수직탭이 모야? (what is the Vertical tab?) (4) | 2010.07.19 |
|---|---|
| CD-ROM 삽입시 메시지 - win32 api cdrom insert message (2) | 2010.07.04 |
| cdecl / stdcall / fastcall (0) | 2010.01.06 |
| C++ 클래스 공용 변수 초기화 (3) | 2009.11.25 |
| static 변수의 범위(scope of static variable) (0) | 2009.10.29 |
| .386 .MODEL Flat, STDCALL .DATA ; Your initialized data. <comment> .DATA? ;Your uninitialized data. <comment> .CONST .CODE label: end label [링크 : http://win32assembly.online.fr/tut1.html] |
| .DATA? 지시어 (0) | 2011.07.31 |
|---|---|
| x86 register (2) | 2011.07.17 |
| PowerPC(PPC) 어셈관련 내용 (0) | 2011.04.04 |
| 어셈블리 메모리 참조 (x86 memory addressing) (0) | 2010.05.03 |
| 어셈블리 언어 (0) | 2010.05.03 |
|
[링크 : http://engdic.daum.net/dicen/contents.do?query1=E255050] |
.MODEL FLAT,
STDCALL
push [third_param] ; Push the third parameterPASCAL calling convention is the reverse of C calling convention. It passes parameters from left to right and the callee is responsible for the stack balancing after the call. Win16 adopts PASCAL convention because it produces smaller codes. C convention is useful when you don't know how many parameters will be passed to the function as in the case of wsprintf(). In the case of wsprintf(), the function has no way to determine beforehand how many parameters will be pushed on the stack, so it cannot do the stack balancing. STDCALL is the hybrid of C and PASCAL convention. It passes parameter from right to left but the callee is responsible for stack balancing after the call.Win32 platform use STDCALL exclusively. Except in one case: wsprintf(). You must use C calling convention with wsprintf(). [링크 : http://win32assembly.online.fr/tut1.html] |
| dangling if-else (0) | 2014.08.13 |
|---|---|
| double의 정확도 자릿수 (0) | 2011.03.25 |
| 함수 포인터 (function pointer) (0) | 2010.09.16 |
| type system (0) | 2010.09.15 |
[링크 : http://docs.python.org/c-api/object.html#PyObject_GetAttrString] |
Py_Initialize();
PyRun_SimpleString("teststr=\"test test\"");
PyObject* po_main = PyImport_AddModule("__main__");
PyObject* po_dict = PyObject_GetAttrString(po_main, "teststr");
printf("teststr [%s]\n",PyString_AsString(po_dict));
Py_DECREF(po_main);
Py_DECREF(po_dict);
Py_Finalize();
| python 3.2.2 64bit 버전 설치 (4) | 2011.09.13 |
|---|---|
| python 버전 골라서 실행하기 (0) | 2011.05.08 |
| 파이썬 문자열 쌍따옴표 세개 - """ python string (0) | 2010.04.04 |
| python c/api 관련문서 (0) | 2010.03.25 |
| python c/api - Py_DECREF (0) | 2010.03.25 |
| Or, strings can be surrounded in a pair of matching triple-quotes: """ or '''. End of lines do not need to be escaped when using triple-quotes, but they will be included in the string. print """ Usage: thingy [OPTIONS] -h Display this usage message -H hostname Hostname to connect to """ produces the following output: Usage: thingy [OPTIONS] -h Display this usage message -H hostname Hostname to connect to [링크 : http://docs.python.org/tutorial/introduction.html#strings] |
| class MyClass: """A simple example class""" i = 12345 def f(self): return 'hello world' [링크 : http://docs.python.org/tutorial/classes.html] |
| For Python there is a standard way of documenting the code using so called documentation strings. Such strings are stored in __doc__ and can be retrieved at runtime. Doxygen will extract such comments and assume they have to be represented in a preformatted way. """@package docstring Documentation for this module. More details. """ def func(): """Documentation for a function. More details. """ pass ## @package pyexample # Documentation for this module. # # More details. ## Documentation for a function. # # More details. def func(): pass [링크 : http://www.stack.nl/~dimitri/doxygen/docblocks.html] |
| python 버전 골라서 실행하기 (0) | 2011.05.08 |
|---|---|
| python C/api - PyObject_GetAttrString() (0) | 2010.04.06 |
| python c/api 관련문서 (0) | 2010.03.25 |
| python c/api - Py_DECREF (0) | 2010.03.25 |
| python c/api 에서 모듈 불러오기 (0) | 2010.03.19 |
| python C/api - PyObject_GetAttrString() (0) | 2010.04.06 |
|---|---|
| 파이썬 문자열 쌍따옴표 세개 - """ python string (0) | 2010.04.04 |
| python c/api - Py_DECREF (0) | 2010.03.25 |
| python c/api 에서 모듈 불러오기 (0) | 2010.03.19 |
| 타겟에서 파이썬 실행시 오류 - Python C/API error with $PYTHONHOME (3) | 2010.03.18 |
| Exception AttributeError: "'module' object has no attribute 'YouTubeService'" in 'garbage collection' ignored Fatal Python error: unexpected exception during garbage collection |
| 파이썬 문자열 쌍따옴표 세개 - """ python string (0) | 2010.04.04 |
|---|---|
| python c/api 관련문서 (0) | 2010.03.25 |
| python c/api 에서 모듈 불러오기 (0) | 2010.03.19 |
| 타겟에서 파이썬 실행시 오류 - Python C/API error with $PYTHONHOME (3) | 2010.03.18 |
| *.py *pyc *.pyo 무슨차이? (0) | 2010.03.11 |
| python c/api 관련문서 (0) | 2010.03.25 |
|---|---|
| python c/api - Py_DECREF (0) | 2010.03.25 |
| 타겟에서 파이썬 실행시 오류 - Python C/API error with $PYTHONHOME (3) | 2010.03.18 |
| *.py *pyc *.pyo 무슨차이? (0) | 2010.03.11 |
| python2.6 컴파일 그리고 설치하기 (0) | 2010.03.03 |
| Could not find platform independent libraries <prefix> Could not find platform dependent libraries <exec_prefix> Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>] 'import site' failed; use -v for traceback |
| # du -h python2.6 75M python2.6/ |
| python c/api - Py_DECREF (0) | 2010.03.25 |
|---|---|
| python c/api 에서 모듈 불러오기 (0) | 2010.03.19 |
| *.py *pyc *.pyo 무슨차이? (0) | 2010.03.11 |
| python2.6 컴파일 그리고 설치하기 (0) | 2010.03.03 |
| python-config를 이용한 gcc 옵션 알아내기 (0) | 2010.03.03 |
|
