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StringUtil: support TryParse(u16*)

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This commit is contained in:
Pierre Bourdon
2017-09-18 05:04:11 +02:00
parent c50848be21
commit 43f067c6e1
2 changed files with 16 additions and 13 deletions
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28
Source/Core/Common/StringUtil.cpp
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@ -226,25 +226,27 @@ std::string StripQuotes(const std::string& s)
return s;
}
bool TryParse(const std::string& str, u16* const output)
{
u64 value;
if (!TryParse(str, &value))
return false;
if (value >= 0x10000ull && value <= 0xFFFFFFFFFFFF0000ull)
return false;
*output = static_cast<u16>(value);
return true;
}
bool TryParse(const std::string& str, u32* const output)
{
char* endptr = nullptr;
// Reset errno to a value other than ERANGE
errno = 0;
unsigned long value = strtoul(str.c_str(), &endptr, 0);
if (!endptr || *endptr)
u64 value;
if (!TryParse(str, &value))
return false;
if (errno == ERANGE)
return false;
#if ULONG_MAX > UINT_MAX
if (value >= 0x100000000ull && value <= 0xFFFFFFFF00000000ull)
return false;
#endif
*output = static_cast<u32>(value);
return true;