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shared: minimal.h: STRTOINT

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This commit is contained in:
Bill Zissimopoulos
2020-11-06 09:41:49 -08:00
parent 3bda3d754e
commit b3058a5e3e
4 changed files with 66 additions and 148 deletions
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56
src/shared/um/minimal.h
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@ -130,6 +130,62 @@ WINFSP_SHARED_MINIMAL_STRNCMP(invariant_wcsnicmp, wchar_t, invariant_toupper)
#undef WINFSP_SHARED_MINIMAL_STRCMP
#undef WINFSP_SHARED_MINIMAL_STRNCMP
#define WINFSP_SHARED_MINIMAL_STRTOINT(NAME, CTYPE, ITYPE)\
static inline\
ITYPE NAME(const CTYPE *p, const CTYPE **endp, int base, int is_signed)\
{\
ITYPE v;\
int maxdig, maxalp, sign = +1;\
if (is_signed)\
{\
if ('+' == *p)\
p++;\
else if ('-' == *p)\
p++, sign = -1;\
}\
if (0 == base)\
{\
if ('0' == *p)\
{\
p++;\
if ('x' == *p || 'X' == *p)\
{\
p++;\
base = 16;\
}\
else\
base = 8;\
}\
else\
{\
base = 10;\
}\
}\
maxdig = 10 < base ? '9' : (base - 1) + '0';\
maxalp = 10 < base ? (base - 1 - 10) + 'a' : 0;\
for (v = 0; *p; p++)\
{\
int c = *p;\
if ('0' <= c && c <= maxdig)\
v = base * v + (c - '0');\
else\
{\
c |= 0x20;\
if ('a' <= c && c <= maxalp)\
v = base * v + (c - 'a') + 10;\
else\
break;\
}\
}\
if (0 != endp)\
*endp = (CTYPE *)p;\
return sign * v;\
}
WINFSP_SHARED_MINIMAL_STRTOINT(strtouint, char, unsigned int)
WINFSP_SHARED_MINIMAL_STRTOINT(strtollint, char, long long int)
WINFSP_SHARED_MINIMAL_STRTOINT(wcstouint, wchar_t, unsigned int)
WINFSP_SHARED_MINIMAL_STRTOINT(wcstollint, wchar_t, long long int)
static inline void *MemAlloc(size_t Size)
{
return HeapAlloc(GetProcessHeap(), 0, Size);