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util: Make ToLower and ToUpper take a char

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Unfortunately, `std::string` elements are (bare) chars. As these
are the most likely type to be passed to these functions, make them use
char instead of unsigned char. This avoids some casts.
This commit is contained in:
Wladimir J. van der Laan 2019-01-10 01:46:32 +01:00
parent edb5bb3500
commit 332b3dd7c1
4 changed files with 6 additions and 6 deletions
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4
src/test/util_tests.cpp
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@ -1224,7 +1224,7 @@ BOOST_AUTO_TEST_CASE(test_ToLower)
BOOST_CHECK_EQUAL(ToLower('Z'), 'z');
BOOST_CHECK_EQUAL(ToLower('['), '[');
BOOST_CHECK_EQUAL(ToLower(0), 0);
BOOST_CHECK_EQUAL(ToLower(255), 255);
BOOST_CHECK_EQUAL(ToLower('\xff'), '\xff');
std::string testVector;
Downcase(testVector);
@ -1246,7 +1246,7 @@ BOOST_AUTO_TEST_CASE(test_ToUpper)
BOOST_CHECK_EQUAL(ToUpper('z'), 'Z');
BOOST_CHECK_EQUAL(ToUpper('{'), '{');
BOOST_CHECK_EQUAL(ToUpper(0), 0);
BOOST_CHECK_EQUAL(ToUpper(255), 255);
BOOST_CHECK_EQUAL(ToUpper('\xff'), '\xff');
}
BOOST_AUTO_TEST_CASE(test_Capitalize)

2
src/uint256.cpp
View file

@ -33,7 +33,7 @@ void base_blob<BITS>::SetHex(const char* psz)
psz++;
// skip 0x
if (psz[0] == '0' && ToLower((unsigned char)psz[1]) == 'x')
if (psz[0] == '0' && ToLower(psz[1]) == 'x')
psz += 2;
// hex string to uint

2
src/util/strencodings.cpp
View file

@ -589,7 +589,7 @@ bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypa
void Downcase(std::string& str)
{
std::transform(str.begin(), str.end(), str.begin(), [](unsigned char c){return ToLower(c);});
std::transform(str.begin(), str.end(), str.begin(), [](char c){return ToLower(c);});
}
std::string Capitalize(std::string str)

4
src/util/strencodings.h
View file

@ -208,7 +208,7 @@ NODISCARD bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32
* @return the lowercase equivalent of c; or the argument
* if no conversion is possible.
*/
constexpr unsigned char ToLower(unsigned char c)
constexpr char ToLower(char c)
{
return (c >= 'A' && c <= 'Z' ? (c - 'A') + 'a' : c);
}
@ -229,7 +229,7 @@ void Downcase(std::string& str);
* @return the uppercase equivalent of c; or the argument
* if no conversion is possible.
*/
constexpr unsigned char ToUpper(unsigned char c)
constexpr char ToUpper(char c)
{
return (c >= 'a' && c <= 'z' ? (c - 'a') + 'A' : c);
}