69 lines
1.1 KiB
C++
69 lines
1.1 KiB
C++
// Common/StringToInt.cpp
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#include "StdAfx.h"
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#include "StringToInt.h"
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UInt64 ConvertStringToUInt64(const char *s, const char **end)
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{
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UInt64 result = 0;
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for (;;)
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{
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char c = *s;
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if (c < '0' || c > '9')
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{
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if (end != NULL)
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*end = s;
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return result;
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}
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result *= 10;
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result += (c - '0');
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s++;
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}
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}
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UInt64 ConvertOctStringToUInt64(const char *s, const char **end)
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{
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UInt64 result = 0;
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for (;;)
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{
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char c = *s;
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if (c < '0' || c > '7')
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{
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if (end != NULL)
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*end = s;
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return result;
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}
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result <<= 3;
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result += (c - '0');
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s++;
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}
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}
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UInt64 ConvertStringToUInt64(const wchar_t *s, const wchar_t **end)
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{
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UInt64 result = 0;
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for (;;)
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{
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wchar_t c = *s;
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if (c < '0' || c > '9')
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{
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if (end != NULL)
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*end = s;
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return result;
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}
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result *= 10;
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result += (c - '0');
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s++;
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}
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}
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Int64 ConvertStringToInt64(const char *s, const char **end)
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{
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if (*s == '-')
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return -(Int64)ConvertStringToUInt64(s + 1, end);
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return ConvertStringToUInt64(s, end);
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}
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