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msvcp90: Added num_get<char>::_Getifld implementation.

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Piotr Caban 2012-06-21 12:26:47 +02:00 committed by Alexandre Julliard
parent 1507d715cc
commit 98f6028c1e
1 changed files with 116 additions and 4 deletions
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120
dlls/msvcp90/locale.c
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@ -4718,11 +4718,123 @@ int __cdecl num_get_char__Getffldx(num_get *this, char *dest, istreambuf_iterato
/* ?_Getifld@?$num_get@DV?$istreambuf_iterator@DU?$char_traits@D@std@@@std@@@std@@ABAHPADAAV?$istreambuf_iterator@DU?$char_traits@D@std@@@2@1HABVlocale@2@@Z */
/* ?_Getifld@?$num_get@DV?$istreambuf_iterator@DU?$char_traits@D@std@@@std@@@std@@AEBAHPEADAEAV?$istreambuf_iterator@DU?$char_traits@D@std@@@2@1HAEBVlocale@2@@Z */
int __cdecl num_get_char__Getifld(num_get *this, char *dest, istreambuf_iterator_char *first,
istreambuf_iterator_char *last, int fmtflags, const locale *loc)
/* Copies number to dest buffer, validates grouping and skips separators.
* Updates first so it points past the number, all digits are skipped.
* Returns number base (8, 10 or 16).
* Size of dest buffer is not specified, assuming it's not smaller then 25:
* 22(8^22>2^64)+1(detect overflows)+1(sign)+1(nullbyte) = 25
*/
int __cdecl num_get_char__Getifld(const num_get *this, char *dest, istreambuf_iterator_char *first,
istreambuf_iterator_char *last, int fmtflags, const locale *loc)
{
FIXME("(%p %p %p %04x %p) stub\n", dest, first, last, fmtflags, loc);
return -1;
static const char digits[] = "0123456789abcdefABCDEF";
numpunct_char *numpunct = numpunct_char_use_facet(loc);
basic_string_char grouping_bstr;
int basefield, base, groups_no = 0, cur_group = 0;
char *dest_beg = dest, *dest_end = dest+24, *groups = NULL, sep;
const char *grouping;
BOOL error = TRUE, dest_empty = TRUE;
TRACE("(%p %p %p %04x %p)\n", dest, first, last, fmtflags, loc);
numpunct_char_grouping(numpunct, &grouping_bstr);
grouping = MSVCP_basic_string_char_c_str(&grouping_bstr);
sep = grouping[0] ? numpunct_char_thousands_sep(numpunct) : '\0';
basefield = fmtflags & FMTFLAG_basefield;
if(basefield == FMTFLAG_oct)
base = 8;
else if(basefield == FMTFLAG_hex)
base = 22; /* equal to the size of digits buffer */
else if(!basefield)
base = 0;
else
base = 10;
istreambuf_iterator_char_val(first);
if(first->strbuf && (first->val=='-' || first->val=='+')) {
*dest++ = first->val;
istreambuf_iterator_char_inc(first);
}
if(!base && first->strbuf && first->val=='0') {
istreambuf_iterator_char_inc(first);
if(first->strbuf && (first->val=='x' || first->val=='X')) {
istreambuf_iterator_char_inc(first);
base = 22;
}else {
error = FALSE;
base = 8;
}
}else {
base = 10;
}
if(sep) {
groups_no = strlen(grouping)+2;
groups = calloc(groups_no, sizeof(char));
}
for(; first->strbuf; istreambuf_iterator_char_inc(first)) {
if(!memchr(digits, first->val, base)) {
if(sep && first->val==sep) {
if(cur_group == groups_no+1) {
if(groups[1] != groups[2]) {
error = TRUE;
break;
}else {
memmove(groups+1, groups+2, groups_no);
groups[cur_group] = 0;
}
}else {
cur_group++;
}
}else {
break;
}
}else {
error = FALSE;
if(dest_empty && first->val == '0')
continue;
dest_empty = FALSE;
/* skip digits that can't be copied to dest buffer, other
* functions are responsible for detecting overflows */
if(dest < dest_end)
*dest++ = first->val;
if(sep && groups[cur_group]<CHAR_MAX)
groups[cur_group]++;
}
}
if(cur_group && !groups[cur_group])
error = TRUE;
else if(!cur_group)
cur_group--;
for(; cur_group>=0 && !error; cur_group--) {
if(*grouping == CHAR_MAX) {
if(cur_group)
error = TRUE;
break;
}else if((cur_group && *grouping!=groups[cur_group])
|| (!cur_group && *grouping<groups[cur_group])) {
error = TRUE;
break;
}else if(grouping[1]) {
grouping++;
}
}
MSVCP_basic_string_char_dtor(&grouping_bstr);
free(groups);
if(error)
dest = dest_beg;
else if(dest_empty)
*dest++ = '0';
*dest = '\0';
return (base==22 ? 16 : base);
}
/* ?_Hexdig@?$num_get@DV?$istreambuf_iterator@DU?$char_traits@D@std@@@std@@@std@@ABEHD000@Z */