int JudgeFAT(char *file_path, dbr_list* p_dbr, fat_boot_sector* fat)
{
char sz_temp1[4] = {0};
char sz_temp2[4] = {0};
LARGE_INTEGER tmp1 = {0};
LARGE_INTEGER tmp2 = {0};
char flag[4] = {'\xf8', '\xff', '\xff', '\x0f'};
DWORD readsize = 0;
tmp1.QuadPart = p_dbr->ll_offset + (fat->reserved * SECTOR_SIZE);
tmp2.QuadPart = p_dbr->ll_offset - ((fat->backup_boot + fat->reserved) * SECTOR_SIZE);
if (!ReadFileOffset(file_path, tmp1.QuadPart, 4, sz_temp1, FILE_BEGIN))
ErrorOut("ReadFile Error!\n");
if (!memcmp(sz_temp1, flag, 4))
{
p_dbr->ll_start_sector = p_dbr->ll_offset / SECTOR_SIZE;
return 1;
}else
{
if (!ReadFileOffset(file_path, tmp2.QuadPart, 4, sz_temp2, FILE_BEGIN))
ErrorOut("ReadFile Error!\n");
if (!memcmp(sz_temp2, flag, 4))
{
p_dbr->ll_start_sector = p_dbr->ll_offset / SECTOR_SIZE - fat->backup_boot;
p_dbr->n_is_org = 1;
return 1;
}
}
return 0;
}
int JudgeMFT(char* file_path, dbr_list* p_dbr, ntfs_boot_sector* ntfs)
{
char sz_temp1[4] = {0};
char sz_temp2[4] = {0};
DWORD readsize;
LARGE_INTEGER tmp1 = {0};
LARGE_INTEGER tmp2 = {0};
tmp1.QuadPart = p_dbr->ll_offset + (ntfs->mft_lcn.QuadPart * ntfs->sectors_per_cluster * SECTOR_SIZE);
tmp2.QuadPart = p_dbr->ll_offset - (ntfs->sectors_nbr * SECTOR_SIZE) + (ntfs->mft_lcn.QuadPart * ntfs->sectors_per_cluster * SECTOR_SIZE);
if (!ReadFileOffset(file_path, tmp1.QuadPart, 4, sz_temp1, FILE_BEGIN))
ErrorOut("ReadFile Error!\n");
if (!memcmp(sz_temp1, "FILE", 4))
{
p_dbr->ll_start_sector = p_dbr->ll_offset / SECTOR_SIZE;
return 1;
}else
{
if (!ReadFileOffset(file_path, tmp2.QuadPart, 4, sz_temp2, FILE_BEGIN))
ErrorOut("ReadFile Error!\n");
if (!memcmp(sz_temp2, "FILE", 4))
{
p_dbr->ll_start_sector = p_dbr->ll_offset / SECTOR_SIZE - ntfs->sectors_nbr;
p_dbr->n_is_org = 1;
return 1;
}
}
return 0;
}
static void IOError( char *msgstart, const char *name )
/*****************************************************/
{
ErrorOut( msgstart );
ErrorOut( name );
ErrorOut( ": " );
ErrorExit( strerror( errno ) );
}
void Format::StringPrint(ostream& os, const char* value, int size) const
{
int i;
// prefix
os << prefix_val;
// will it fit
if (size > max_width_val) { ErrorOut(os); return; }
// padding
int spaces;
if (size < min_width_val) spaces = min_width_val - size; else spaces = 0;
int s1, s2; // leading and following spaces
if (alignment_val == Format::LEFT) { s1 = 0; s2 = spaces; }
else if (alignment_val == Format::RIGHT) { s1 = spaces; s2 = 0; }
else { s1 = spaces / 2; s2 = spaces - s1; }
// leading spaces
for (i = 0; i < s1; i++) os << ' ';
// the string
for (i = 0; i < size; i++) os << value[i];
// trailing blanks
for (i = 0; i < s2; i++) os << ' ';
// suffix
os << suffix_val;
}
bool WriteFileOffset(char* file_path, __int64 ll_offset, long l_buf_size, char* buf, __in DWORD dwMoveMethod)
{
DWORD readsize;
LARGE_INTEGER tmp = {0};
HANDLE hFile = CreateFileA(file_path,
GENERIC_WRITE | GENERIC_READ,
FILE_SHARE_WRITE|FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
if ( hFile == INVALID_HANDLE_VALUE){ //Open the data file.
ErrorOut("CreateFile() Error!");
}
tmp.QuadPart = ll_offset;
tmp.LowPart = SetFilePointer(hFile, tmp.QuadPart, &tmp.HighPart, dwMoveMethod);
if (WriteFile(hFile, buf, l_buf_size, &readsize, NULL))
{
CloseHandle(hFile);
return 1;
}else
{
CloseHandle(hFile);
return 0;
}
}
/*得到文件大小*/
__int64 ToGetFileSize(char* pFile)
{
DWORD dwFileSizeHigh = 0;
long filesize = 0;
__int64 nFileSize = 0;
HANDLE hFile = CreateFileA((LPCSTR)pFile,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
if ( hFile == INVALID_HANDLE_VALUE)
{
ErrorOut("CreateFile Error!");
}
nFileSize = GetFileSize(hFile, &dwFileSizeHigh);
nFileSize += (((__int64) dwFileSizeHigh) << 32);
CloseHandle(hFile);
return nFileSize;
}
// 往dbrList中插入一个元素
int InsertDBRList(dbr_list_t* p_dbr_head, char* sz_data, int n_type,__int64 i, LCN ll_offset)
{
int j = 0;
dbr_list_t *pTemp = NULL; // 临时指针
dbr_list_t *s = NULL;
pTemp = p_dbr_head;
while(pTemp != NULL&& j < i) // 插入到头结点的下一个节点
{
if (!memcmp(pTemp->p_next->dbr, sz_data, 512))
{
free(sz_data);
return 0;
}
pTemp = pTemp->p_next;
j++;
}
if (pTemp == NULL)
{
ErrorOut("Insert dbrList Error!");
}
s = (dbr_list_t *)malloc(sizeof(dbr_list_t));
memset(s, 0, sizeof(dbr_list_t));
if(NULL == s)
{
ErrorOut("Insert dbrList Error!");
}
else
{
s->dbr = sz_data;
s->n_type = n_type;
s->ll_offset = ll_offset;
s->p_next = pTemp->p_next;
s->ll_start_sector = 0;
s->ll_total_sector = 0;
s->flag = 0;
s->n_is_org = 0;
pTemp->p_next = s;
g_n_dbr++;
return 1;
}
return 0;
}
int Maping_file(char* big_file, LCN lOffset, long lSize)
{
char* pDPT_File; //存放指向内存映射文件的首地址
HANDLE hFile = CreateFileA(big_file,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
if ( hFile == INVALID_HANDLE_VALUE){ //Open the data file.
ErrorOut("CreateFile() Error!");
}
HANDLE hFileMapping = CreateFileMapping(hFile,
NULL, //Create the file-mapping object.
PAGE_READONLY,
0,
0,
NULL);
if (hFileMapping == INVALID_HANDLE_VALUE){
ErrorOut("CreateFileMapping() Error!");
}
PBYTE pbFile = (PBYTE) MapViewOfFile(hFileMapping, FILE_MAP_READ,
lOffset & 0xFFFFFFFF00000000, // Offset high
lOffset & 0xFFFFFFFF, // Offset low
lSize); // bytes to map
if (pbFile == INVALID_HANDLE_VALUE){
ErrorOut("MapViewOfFile() Error!");
}
//printf("%lld, %lld\n", g_ll_file_size, lOffset);
//////////////////////////////////////////////
pDPT_File = (char*)pbFile;
ToGetDBR(pDPT_File, lSize, lOffset);
//////////////////////////////////////////////
UnmapViewOfFile(pbFile);
CloseHandle(hFileMapping);
CloseHandle(hFile);
return 0;
}
// 往dbrList中插入一个元素
int InsertRebuildList(rebuild_content_t* p_rebuild_head, char* sz_data, int n_size, LCN ll_offset, __int64 i)
{
int j = 0;
rebuild_content_t *pTemp = NULL; // 临时指针
rebuild_content_t *s = NULL;
pTemp = p_rebuild_head;
while(pTemp != NULL&& j < i) // 插入到头结点的下一个节点
{
pTemp = pTemp->p_next;
j++;
}
if (pTemp == NULL)
{
ErrorOut("Insert dbrList Error!");
}
s = (rebuild_content_t *)malloc(sizeof(rebuild_content_t));
memset(s, 0, sizeof(rebuild_content_t));
if(NULL == s)
{
ErrorOut("Insert rebuild_content_t Error!");
}
else
{
s->content = sz_data;
s->n_size = n_size;
s->ll_offset = ll_offset;
s->p_next = pTemp->p_next;
pTemp->p_next = s;
return 1;
}
return 0;
}
STDMETHODIMP CEncoder::Code(ISequentialInStream *inStream,
ISequentialOutStream *outStream, const UInt64 * /*inSize*/ ,
const UInt64 * /*outSize */, ICompressProgressInfo *progress)
{
ZSTDMT_RdWr_t rdwr;
size_t result;
HRESULT res = S_OK;
struct ZstdStream Rd;
Rd.inStream = inStream;
Rd.outStream = outStream;
Rd.processedIn = &_processedIn;
Rd.processedOut = &_processedOut;
struct ZstdStream Wr;
if (_processedIn == 0)
Wr.progress = progress;
else
Wr.progress = 0;
Wr.inStream = inStream;
Wr.outStream = outStream;
Wr.processedIn = &_processedIn;
Wr.processedOut = &_processedOut;
/* 1) setup read/write functions */
rdwr.fn_read = ::ZstdRead;
rdwr.fn_write = ::ZstdWrite;
rdwr.arg_read = (void *)&Rd;
rdwr.arg_write = (void *)&Wr;
/* 2) create compression context, if needed */
if (!_ctx)
_ctx = ZSTDMT_createCCtx(_numThreads, _props._level, _inputSize);
if (!_ctx)
return S_FALSE;
/* 3) compress */
result = ZSTDMT_compressCCtx(_ctx, &rdwr);
if (ZSTDMT_isError(result)) {
if (result == (size_t)-ZSTDMT_error_canceled)
return E_ABORT;
return ErrorOut(result);
}
return res;
}
// 创建一个空链表 用来存储需要重构的信息
rebuild_content_t *CreateReBuildHead()
{
rebuild_content_t *pTemp = NULL;
pTemp = (rebuild_content_t*)malloc(sizeof(rebuild_content_t));
if(NULL == pTemp)
{
ErrorOut("Malloc Error!");
return NULL;
}
else
{
// 初始化链表 返回p
pTemp->p_next = NULL;
pTemp->content = NULL;
pTemp->ll_offset= 0;
pTemp->n_size = 0;
return(pTemp);
}
}
HRESULT CDecoder::CodeSpec(ISequentialInStream * inStream,
ISequentialOutStream * outStream, ICompressProgressInfo * progress)
{
ZSTDMT_RdWr_t rdwr;
size_t result;
HRESULT res = S_OK;
struct ZstdStream Rd;
Rd.inStream = inStream;
Rd.processedIn = &_processedIn;
struct ZstdStream Wr;
Wr.progress = progress;
Wr.outStream = outStream;
Wr.processedIn = &_processedIn;
Wr.processedOut = &_processedOut;
/* 1) setup read/write functions */
rdwr.fn_read = ::ZstdRead;
rdwr.fn_write = ::ZstdWrite;
rdwr.arg_read = (void *)&Rd;
rdwr.arg_write = (void *)&Wr;
/* 2) create decompression context */
ZSTDMT_DCtx *ctx = ZSTDMT_createDCtx(_numThreads, _inputSize);
if (!ctx)
return S_FALSE;
/* 3) decompress */
result = ZSTDMT_decompressDCtx(ctx, &rdwr);
if (ZSTDMT_isError(result)) {
if (result == (size_t)-ZSTDMT_error_canceled)
return E_ABORT;
return ErrorOut(result);
}
/* 4) free resources */
ZSTDMT_freeDCtx(ctx);
return res;
}
// 创建一个空链表 用来存储需要重构的信息
dbr_list_t *CreateDBRHead()
{
dbr_list_t *pTemp = NULL;
pTemp = (dbr_list_t*)malloc(sizeof(dbr_list_t));
if(NULL == pTemp)
{
ErrorOut("Malloc Error!");
return NULL;
}
else
{
// 初始化链表 返回p
pTemp->p_next = NULL;
pTemp->dbr = NULL;
pTemp->n_type = 0;
pTemp->ll_offset= 0;
pTemp->flag = 0;
pTemp->ll_start_sector = 0;
pTemp->ll_total_sector = 0;
pTemp->n_is_org = 0;
return(pTemp);
}
}
int wms_get_file_1(HINTERNET hConnect, LPCSTR pathname, LPCSTR strReferer, LPCSTR tx_saveto)
{
HINTERNET hReq;
DWORD dwSize, dwCode;
CHAR szData[HTTP_GET_SIZE+1];
//CString strReferer = "http://maps.peterrobins.co.uk/f/m.html";
//strReferer = "http://map.geoportail.lu";
if ( !(hReq = HttpOpenRequest (hConnect, "GET", pathname, HTTP_VERSION, strReferer, NULL, 0 ,0 ))) {
ErrorOut (GetLastError(), "HttpOpenRequest");
return FALSE;
}
if (!HttpSendRequest (hReq, NULL, 0, NULL, 0) ) {
ErrorOut (GetLastError(), "HttpSend");
return FALSE;
}
dwSize = sizeof (DWORD) ;
if ( !HttpQueryInfo (hReq, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &dwCode, &dwSize, NULL)) {
ErrorOut (GetLastError(), "HttpQueryInfo");
return FALSE;
}
if ( dwCode == HTTP_STATUS_DENIED || dwCode == HTTP_STATUS_PROXY_AUTH_REQ) {
// This is a secure page.
fprintf(stderr, "This page is password protected.\n");
return FALSE;
}
if ( dwCode == 404) {
fprintf(stderr, "Page not found.\n");
return FALSE;
}
FILE * fp = fopen(tx_saveto, "wb+");
if (fp == NULL) {
printf("Couldn't create %s\n", tx_saveto);
return FALSE;
}
long file_len=0;
while (!abortProgram) {
if (!InternetReadFile (hReq, (LPVOID)szData, HTTP_GET_SIZE, &dwSize) ) {
ErrorOut (GetLastError (), "InternetReadFile");
file_len = -1;
break;
}
if (dwSize == 0)
break;
if (fwrite(szData, sizeof(char), dwSize, fp) != dwSize) {
printf("Error writing %d bytes to %s\n", dwSize, tx_saveto);
file_len = -1;
break;
}
file_len += dwSize;
// printf("%d \r", file_len);
}
fclose(fp);
if (!InternetCloseHandle (hReq) ) {
ErrorOut (GetLastError (), "CloseHandle on hReq");
file_len = -1;
}
if (file_len <= 0)
return FALSE;
// Validate PNG
LPBYTE buffer = (LPBYTE)malloc(file_len+1);
if (buffer == 0) {
fprintf(stderr, "Couldn't allocate %d bytes to verify %s\n", file_len, tx_saveto);
return FALSE;
}
memset(buffer, 0, file_len+1);
fp = fopen(tx_saveto, "rb");
if (fp == NULL) {
fprintf(stderr, "Failed to reopen %s\n", tx_saveto);
free(buffer);
return FALSE;
}
if (fread(buffer, 1, file_len, fp) != file_len) {
fprintf(stderr, "Error reading %s\n", tx_saveto);
free(buffer);
return FALSE;
}
fclose(fp);
unsigned char pnghdr[] = {0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a};
unsigned char jpghdr[] = {0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46};
unsigned char gifhdr[] = {0x47, 0x49, 0x46, 0x38, 0x39, 0x61};
if ((memcmp(buffer, pnghdr, sizeof(pnghdr)) == 0)
|| (memcmp(buffer, jpghdr, sizeof(jpghdr)) == 0)
|| (memcmp(buffer, gifhdr, sizeof(gifhdr)) == 0)) {
free(buffer);
return TRUE;
} else {
fprintf(stderr, "Error retrieving %s\n", tx_saveto);
free(buffer);
return FALSE;
}
}
int wmsLoadTiles(CTileDatabase* g_db, long minx, long miny, long maxx, long maxy, BOOL bForce, int nMapScale)
{
HINTERNET hOpen, hConnect;
char strTile[256];
hOpen = NULL;
FILE * fp_log = fopen("log.txt", "a+");
CProgressWindow wndProgress;
wndProgress.Initialize();
int nMeters = MyMap.GetMetresPerTile();
wndProgress.ResetProgressBar("Downloading:", (maxy-miny)/nMeters*(maxx-minx)/nMeters);
// Grab in (8 x 8????) tiles.
for (long y=miny; y<maxy; y+=nMeters) {
for (long x=minx; x<maxx; x+=nMeters) {
if (!wndProgress.ProgressBar()) return false;
if (!bForce && g_db->TileLoaded(y, x)) {
fprintf(fp_log, "Tile: [%05d,%05d] skipped - tile exists\n", x,y);
continue;
} else {
// Only connect to WMS if required.
// SNL 11/06/2013 - hmmmm!
CString str1 = MyMap.wmsGetAttribution();
int port = MyMap.wmsGetPort();
g_db->InitDatabase(y,x,MyMap.GetDatum());
if (hOpen == NULL) {
if ( !(hOpen = InternetOpen ( "Sample", LOCAL_INTERNET_ACCESS , NULL, 0, 0) ) ) {
ErrorOut ( GetLastError(), "InternetOpen");
return 0;
}
if ( !(hConnect = InternetConnect ( hOpen, MyMap.wmsGetAttribution(), MyMap.wmsGetPort(), "", "", INTERNET_SERVICE_HTTP, 0 , 0) ) ) {
ErrorOut (GetLastError(), "InternetConnect");
return 0;
}
}
fprintf(fp_log, "Tile: [%05d,%05d] loading...\n", x,y);
wmsGetTile(hConnect, strTile, y, x, g_db, fp_log, bForce, nMapScale);
}
if (abortProgram) {
y=miny;
x=maxx;
}
}
}
fclose(fp_log);
if (hOpen != NULL) {
if (!InternetCloseHandle (hConnect) ) {
ErrorOut (GetLastError (), "CloseHandle on hConnect");
return FALSE;
}
if (!InternetCloseHandle (hOpen) ) {
ErrorOut (GetLastError (), "CloseHandle on hOpen");
return FALSE;
}
}
return 0;
}
void HandleFile(char* file_path, rebuild_content_t* p_rebuild_list)
{
char* sz_vhd_buf = (char*)malloc(SECTOR_SIZE);
memset(sz_vhd_buf, 0, SECTOR_SIZE);
rebuild_content_t* p_rebuild_tmp = NULL;
char tmp[SECTOR_SIZE] = {0};
/////////////////////////////// Handle VHD
hd_ftr* vhd;
vhd = (hd_ftr*)data;
LARGE_INTEGER offset = {0};
DWORD readsize = 0;
/*Set hd_ftr struct*/
vhd->orig_size = 0; // clear
vhd->orig_size = g_ll_file_size - SECTOR_SIZE;
vhd->orig_size = INT64_TO_NET(vhd->orig_size);
vhd->curr_size = vhd->orig_size;
vhd->checksum = 0;
/*calc checksum*/
unsigned int temp = 0;
for (int i = 0; i < 512; i++)
{
temp += data[i];
}
vhd->checksum = htonl(~temp);
///////////////////////////////////////////
for(p_rebuild_tmp = p_rebuild_list->p_next; p_rebuild_tmp != NULL;)
{
if (!ReadFileOffset(file_path, p_rebuild_tmp->ll_offset, p_rebuild_tmp->n_size, tmp, FILE_BEGIN))
ErrorOut("Backup Read Error!\n");
if (!WriteFileOffset(file_path, p_rebuild_tmp->ll_offset, p_rebuild_tmp->n_size, p_rebuild_tmp->content, FILE_BEGIN))
ErrorOut("Backup Write Error!\n");
memcpy(p_rebuild_tmp->content, tmp, p_rebuild_tmp->n_size); // BackUp SECTOR
p_rebuild_tmp = p_rebuild_tmp->p_next;
}
/////////////////////////////////////////////////// BackUp VHD
ReadFileOffset(file_path, -SECTOR_SIZE, SECTOR_SIZE, sz_vhd_buf, FILE_END);
/////////////////////////////////////////////* */// Write VHD
WriteFileOffset(file_path, -SECTOR_SIZE, SECTOR_SIZE, (char*)vhd, FILE_END);
printf("WriteFile Success! You can mount it as vhd file now!\n");
system("pause");
////////////////////////// Restore SECTOR
for(p_rebuild_tmp = p_rebuild_list->p_next; p_rebuild_tmp != NULL;)
{
if (!ReadFileOffset(file_path, p_rebuild_tmp->ll_offset, p_rebuild_tmp->n_size, tmp, FILE_BEGIN))
ErrorOut("Restore Read Error!\n");
if (!WriteFileOffset(file_path, p_rebuild_tmp->ll_offset, p_rebuild_tmp->n_size, p_rebuild_tmp->content, FILE_BEGIN))
ErrorOut("Restore Write Error!\n");
memcpy(p_rebuild_tmp->content, tmp, p_rebuild_tmp->n_size); // BackUp SECTOR
p_rebuild_tmp = p_rebuild_tmp->p_next;
}
///////////////////////// Restore VHD
WriteFileOffset(file_path, -SECTOR_SIZE, SECTOR_SIZE, sz_vhd_buf, FILE_END);
printf("Restore File Success!\n");
}
void Format::Scientific(ostream& os, double value, int nsig) const
{
int i;
double v = value;
// check nsig >= 0
if (nsig < 0) { ErrorOut(os); return; }
// sign
bool neg;
if (v < 0) { v = -v; neg = true; }
else neg = false;
// exponent - first try
int lv;
if (v == 0.0) lv = 0;
else lv = (int)floor(log10(v)); // power of 10 - first try
v /= pow(10.0,lv); // normalise by power of 10
// round
double p = pow(10.0,nsig-1); // aiming at nsig-1 decimal places
double rv = floor(v * p + 0.5); // rounded value * p
// exponent - adjust
if (rv >= 10.0 * p)
{ lv++; v /= 10.0; rv = floor(v * p + 0.5); }
// will it fit
int w = nsig;
if (nsig > 1) w++; // for decimal
if (neg || positive_val != Format::NX) w++; // for sign
int np; // decimals in power part
if (lv >=100 || lv <= -100)
{ if (lv >=1000 || lv <= -1000) np = 4; else np = 3; }
else np = 2;
w += np + 2; // +2 is for e and sign
if (w > max_width_val)
{
int ov = w - max_width_val; // overflow
// can rounding shift us from E-100 to E-99
if ((lv == -100 || lv == -1000) && ov == 1)
{
double p1 = p / 10.0;
double rv1 = floor(v * p1 + 0.5);
if (rv1 >= p)
{
double v1 = rv1 * pow(10.0, lv) / p1;
if (neg) v1 = -v1;
Scientific(os, v1, nsig);
return;
}
}
if (overflow_policy_val == Format::HASH) { ErrorOut(os); return; }
if (ov > 1) --ov; // in case characteristic length
// drops when we round
if (ov > 1) --ov; // in case we can drop decimal
nsig -= ov; // how many sig figures
if (nsig <= 0) { ErrorOut(os); return; } // can't print
Scientific(os, value, nsig); // try again with reduced nsig
return;
}
// spaces
int spaces = min_width_val - w;
if (spaces < 0) spaces = 0;
int s1, s2; // leading and following sp
if (alignment_val == Format::LEFT) { s1 = 0; s2 = spaces; }
else if (alignment_val == Format::RIGHT) { s1 = spaces; s2 = 0; }
else { s1 = spaces / 2; s2 = spaces - s1; }
// leading spaces
for (i = 0; i < s1; i++) os << ' ';
// sign
if (neg) os << '-';
else if (positive_val == Format::SPACE) os << ' ';
else if (positive_val == Format::PLUS) os << '+';
// decimal part
String sv; sv.resize(nsig);
for (i = nsig-1; i >= 0; i--)
{
double x; x = modf(rv/10, &rv);
sv[i] = (char)('0' + (int)floor(x * 10 + 0.5));
}
os << sv[0]; // first digit
if (nsig > 1) // need decimal
{ os << '.'; for (int i = 1; i < nsig; i++) os << sv[i]; }
// power part
os << 'e';
if (lv >= 0) os << '+'; else { os << '-'; lv = -lv; }
sv.resize(np);
for (i = np-1; i >= 0; i--)
{
int lv1 = lv / 10; int x = lv - lv1 * 10; lv = lv1;
sv[i] = (char)('0' + x);
}
for (i = 0; i < np; i++) os << sv[i];
// trailing blanks
for (i = 0; i < s2; i++) os << ' ';
}
void Format::DecFig(ostream& os, double value, int ndec,
bool force_decimal) const
{
int i;
double v = value;
bool variant1 = (variant_val == Format::VAR1);
// sign
bool neg;
if (v < 0) { v = -v; neg = true; } else neg = false;
// round and break into integer and decimal bits
// iv will contain the integer part
// v will contain the rounded decimal part, multiplied up to make an integer
double p = pow(10.0,ndec); // 10 ** ndec
double iv; // integer part
v = modf(v, &iv); // decimal parts
v = floor(v * p + 0.5); // rounded decimal part
if (v >= p) { iv += 1.0; v -= p; } // decimal part over 1
// check for underflow
if ( iv == 0 &&
value != 0.0 &&
underflow_policy_val == Format::E &&
!force_decimal &&
(!variant1 || v < 0.1) )
{ Scientific(os, value, ndec+1); return; }
// space available for integer part
int li = max_width_val - ndec; // max space for integer part
int lj = min_width_val - ndec; // min space for integer part
// space for sign
if (neg || positive_val != Format::NX) { li--; lj--; }
// are we going to show the decimal point
bool dp = (ndec > 0);
if (dp) { li--; lj--; } // space for decimal point
// try again with reduced number of decimals
if (variant1)
{
if (li < 0)
{ DecFig(os, value, ndec+li, force_decimal); return; }
}
else
{
if (li < 1)
{ DecFig(os, value, ndec+li-1, force_decimal); return; }
}
String si(li, ' ');
int nchar = 0;
for (i = li-1; i >= 0; i--)
{
if (iv < 0.5) break;
nchar++; // chars in integer part
double x; x = modf(iv/10, &iv);
si[i] = (char)('0' + (int)floor(x * 10 + 0.5));
}
if (iv > 0.5) // won't fit
{
if (overflow_policy_val == Format::HASH) ErrorOut(os);
else Scientific(os, value, max_width_val-4);// maybe do precision better
return;
}
if (nchar == 0 && !variant1)
{ nchar = 1; si[li-1] = '0'; } // integer part is zero
int spaces = lj - nchar; // number of spaces
if (spaces < 0) spaces = 0;
int s1, s2; // leading and following sp
if (alignment_val == Format::LEFT) { s1 = 0; s2 = spaces; }
else if (alignment_val == Format::RIGHT) { s1 = spaces; s2 = 0; }
else { s1 = spaces / 2; s2 = spaces - s1; }
// in VAR1 variant, if there are no decimals but there is room for
// the decimal point, put it in.
if (ndec == 0 && variant1 && s1 > 0) { dp = true; --s1; }
// leading spaces
for (i = 0; i < s1; i++) os << ' ';
// sign
if (neg) os << '-';
else if (positive_val == Format::SPACE) os << ' ';
else if (positive_val == Format::PLUS) os << '+';
// integer part
for (i = 0; i < nchar; i++) os << si[li - nchar + i];
// decimal part
if (dp)
{
os << '.';
String sv(ndec, '0');
for (i = ndec-1; i >= 0; i--)
{
double x; x = modf(v/10, &v);
sv[i] = (char)('0' + (int)floor(x * 10 + 0.5));
}
for (i = 0; i < ndec; i++) os << sv[i];
}
// trailing blanks
for (i = 0; i < s2; i++) os << ' ';
}