Merge #14599: Use functions guaranteed to be locale independent (IsDigit, ToLower) in {Format,Parse}Money(...), uint256::SetHex(...), etc. Remove the use of locale dependent boost::is_space(...)

8931a95bec Include util/strencodings.h which is required for IsSpace(...) (practicalswift)
7c9f790761 Update KNOWN_VIOLATIONS: Remove fixed violations (practicalswift)
587924f000 Use IsSpace(...) instead of boost::is_space (practicalswift)
c5fd143edb Use ToLower(...) instead of std::tolower (practicalswift)
e70cc8983c Use IsDigit(...) instead of std::isdigit (practicalswift)

Pull request description:

  * Use `ToLower(...)` instead of `std::tolower`. `std::tolower` is locale dependent.
  * Use `IsDigit(...)` instead of `std::isdigit`. Some implementations (e.g. Microsoft in 1252 codepage) may classify single-byte characters other than `[0-9]` as digits.
  * Update `KNOWN_VIOLATIONS`: Remove fixed violations.
  * ~~Replace use of locale dependent Boost trim (`boost::trim`) with locale independent `TrimString`.~~
  * Use` IsSpace(...)` instead of `boost::is_space`

Tree-SHA512: defed016136b530b723fa185afdbd00410925a748856ba3afa4cee60f61a67617e30f304f2b9991a67b5fe075d9624f051e14342aee176f45fbc024d59e1aa82

src/util/moneystr.cpp

@@ -20,7 +20,7 @@ std::string FormatMoney(const CAmount& n)
 
     // Right-trim excess zeros before the decimal point:
     int nTrim = 0;
-    for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
+    for (int i = str.size()-1; (str[i] == '0' && IsDigit(str[i-2])); --i)
         ++nTrim;
     if (nTrim)
         str.erase(str.size()-nTrim, nTrim);
@@ -49,7 +49,7 @@ bool ParseMoney(const char* pszIn, CAmount& nRet)
         {
             p++;
             int64_t nMult = COIN / 10;
-            while (isdigit(*p) && (nMult > 0))
+            while (IsDigit(*p) && (nMult > 0))
             {
                 nUnits += nMult * (*p++ - '0');
                 nMult /= 10;
@@ -58,7 +58,7 @@ bool ParseMoney(const char* pszIn, CAmount& nRet)
         }
         if (IsSpace(*p))
             break;
-        if (!isdigit(*p))
+        if (!IsDigit(*p))
             return false;
         strWhole.insert(strWhole.end(), *p);
     }

src/util/system.cpp

@@ -443,7 +443,7 @@ bool ArgsManager::ParseParameters(int argc, const char* const argv[], std::strin
             key.erase(is_index);
         }
 #ifdef WIN32
-        std::transform(key.begin(), key.end(), key.begin(), ::tolower);
+        std::transform(key.begin(), key.end(), key.begin(), ToLower);
         if (key[0] == '/')
             key[0] = '-';
 #endif