#include <stdio.h>
#include <string.h>

int main(void)
{
  char *p = NULL;
  while (getc(stdin))
  {
    p = (char *)malloc(1024);
  }
}

<FRAME num="0" dll="ntdll.dll" function ="CsrAllocateCaptureBuffer" offset="0x36" filename="" line="" addr="0x7C93EB8E" />
<FRAME num="1" dll="kernel32.dll" function ="GetConsoleInputWaitHandle" offset="0x1DF" filename="" line="" addr="0x7C8727F8" />
<FRAME num="2" dll="kernel32.dll" function ="ReadConsoleA" offset="0x3B" filename="" line="" addr="0x7C872A78" />
<FRAME num="3" dll="kernel32.dll" function ="ReadFile" offset="0xA5" filename="" line="" addr="0x7C8018B7" />
<FRAME num="4" dll="memleak.exe" function="" filename="" line="" addr="0x407f6b" offset="0x00007F6B" />

<FRAME num="0" dll="memleak.exe" function ="_heap_alloc_base" offset="0xC2" filename="malloc.c" line="200" addr="0x403752" />
<FRAME num="1" dll="memleak.exe" function ="_heap_alloc_dbg" offset="0x1A2" filename="dbgheap.c" line="378" addr="0x401362" />
<FRAME num="2" dll="memleak.exe" function ="_nh_malloc_dbg" offset="0x19" filename="dbgheap.c" line="248" addr="0x401169" />
<FRAME num="3" dll="memleak.exe" function ="malloc" offset="0x19" filename="dbgheap.c" line="130" addr="0x4010E9" />
<FRAME num="4" dll="memleak.exe" function ="main" offset="0x76" filename="c:\working\temp\memleak\main.c" line="9" addr="0x401086" />

#ifndef __CALC_H
#define __CALC_H

typedef struct {
    int j;
    int k;   
} obj;

int add1(int a, int b);
void add2(int a, int b, int *c);
void add3(obj a, obj *b, obj *c);
#endif

#include "calc.h"

int add1(int a, int b) {
    return a + b;
}

void add2(int a, int b, int *c) {
    *c = a + b;
}

void add3(obj a, obj *b, obj *c) {
    c->j = a.j + b->j;
    c->k = a.k + b->k;
}

%module calctest

%{
#include "calc.h"
%}

%include "calc.h"

from distutils.core import setup, Extension
from os import environ

# swig's path add to current PATH.
environ["PATH"] = environ["PATH"] + ";C:\Working\swigtest\swigwin-1.3.39"

# extension for python.
calc_module = Extension(
    "_calctest",
    sources = ["calc.i", "calc.c"],
    swig_opts = [],
    )


setup(
    name="Calc",
    version = "0.1.0",
    description = "Calc test module",
    author = "Matrix Ji",
    author_email = "webmatrix.ji@gmail.com",
    ext_modules = [calc_module],
    py_modules = ["calctest"],
    )

>>> from calctest import add1
>>> add1(1,2)
3
>>>

%module calctest

%{
#include "calc.h"
%}

%apply int *OUTPUT {int *c}

%include "calc.h"

if (SWIG_IsTmpObj(res3)) {
    resultobj = SWIG_Python_AppendOutput(resultobj, SWIG_From_int((*arg3)));
} else {
    int new_flags = SWIG_IsNewObj(res3) ? (SWIG_POINTER_OWN |  0 ) :  0 ;
    resultobj = SWIG_Python_AppendOutput(resultobj, SWIG_NewPointerObj((void*)(arg3), SWIGTYPE_p_int, new_flags));
}

>>> from calctest import add1, add2, add3
>>> add2(1,2)
3
>>>

from calctest import add3, obj

obj1 = obj()
obj2 = obj()
obj3 = obj()

obj1.j = 100;
obj1.k = 200;

obj2.j = 10;
obj2.k = 20;

print "j:%d, k:%d" % (obj3.j, obj3.k)
add3(obj1, obj2, obj3)
print "j:%d, k:%d" % (obj3.j, obj3.k)

j:0, k:0
j:110, k:220

#!/bin/sh

# repot && transaction arguments
REPOS="$1"
TXN="$2"

# svnlook command
SVNLOOK=/usr/local/bin/svnlook

# file filter: we only allow commit .c && .h files.
FILTER='\.(c|h)$'

# max file size in bytes after commit.
MAX_SIZE=102400

# max change per one commit
MAX_CHANGE_LINES=50

files=$($SVNLOOK changed -t $TXN $REPOS | awk '{print $2}')

# check 
for f in $files
do
    # check file type
    if echo $f | grep -Eq $FILTER ; then
        # valid file
        :
    else
        echo "File $f is not a .h or .c file" >> /dev/stderr
        exit 1
    fi

    # check file size
    filesize=$($SVNLOOK cat -t $TXN $REPOS $f | wc -c)
    if [ $filesize -gt $MAX_SIZE ] ; then
        echo "File $f is too large (must <= $MAX_SIZE)" >> /dev/stderr
        exit 1
    fi

    # check change lines
    changelines=$($SVNLOOK diff -t $TXN $REPOS $f | grep -E '^(\+|-)' | wc -l)
    if [ $changelines -gt $MAX_CHANGE_LINES ] ; then
        echo "File $f changes too much ($changelines lines, must <= $MAX_CHANGE_LINES)" >> /dev/stderr
        exit 1
    fi
done

exit 0