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// Common/StringToInt.cpp
#include "StdAfx.h"
#include "StringToInt.h"
UInt64 ConvertStringToUInt64(const char *s, const char **end)
{
UInt64 result = 0;
for (;;)
{
char c = *s;
if (c < '0' || c > '9')
{
if (end != NULL)
*end = s;
return result;
}
result *= 10;
result += (c - '0');
s++;
}
}
UInt64 ConvertOctStringToUInt64(const char *s, const char **end)
{
UInt64 result = 0;
for (;;)
{
char c = *s;
if (c < '0' || c > '7')
{
if (end != NULL)
*end = s;
return result;
}
result <<= 3;
result += (c - '0');
s++;
}
}
UInt64 ConvertHexStringToUInt64(const char *s, const char **end)
{
UInt64 result = 0;
for (;;)
{
char c = *s;
UInt32 v;
if (c >= '0' && c <= '9') v = (c - '0');
else if (c >= 'A' && c <= 'F') v = 10 + (c - 'A');
else if (c >= 'a' && c <= 'f') v = 10 + (c - 'a');
else
{
if (end != NULL)
*end = s;
return result;
}
result <<= 4;
result |= v;
s++;
}
}
UInt64 ConvertStringToUInt64(const wchar_t *s, const wchar_t **end)
{
UInt64 result = 0;
for (;;)
{
wchar_t c = *s;
if (c < '0' || c > '9')
{
if (end != NULL)
*end = s;
return result;
}
result *= 10;
result += (c - '0');
s++;
}
}
Int64 ConvertStringToInt64(const char *s, const char **end)
{
if (*s == '-')
return -(Int64)ConvertStringToUInt64(s + 1, end);
return ConvertStringToUInt64(s, end);
}
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