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Added commified output when converting from integer to string.

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This commit is contained in:
Branimir Karadžić
2018-07-16 19:37:49 -07:00
parent 7f4f5a282b
commit a4447f725b
3 changed files with 69 additions and 31 deletions
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8
include/bx/string.h
View File

@@ -280,16 +280,16 @@ namespace bx
int32_t toString(char* _out, int32_t _max, double _value);
/// Converts 32-bit integer value to string.
int32_t toString(char* _out, int32_t _max, int32_t _value, uint32_t _base = 10);
int32_t toString(char* _out, int32_t _max, int32_t _value, uint32_t _base = 10, char _separator = '\0');
/// Converts 64-bit integer value to string.
int32_t toString(char* _out, int32_t _max, int64_t _value, uint32_t _base = 10);
int32_t toString(char* _out, int32_t _max, int64_t _value, uint32_t _base = 10, char _separator = '\0');
/// Converts 32-bit unsigned integer value to string.
int32_t toString(char* _out, int32_t _max, uint32_t _value, uint32_t _base = 10);
int32_t toString(char* _out, int32_t _max, uint32_t _value, uint32_t _base = 10, char _separator = '\0');
/// Converts 64-bit unsigned integer value to string.
int32_t toString(char* _out, int32_t _max, uint64_t _value, uint32_t _base = 10);
int32_t toString(char* _out, int32_t _max, uint64_t _value, uint32_t _base = 10, char _separator = '\0');
/// Converts string to bool value.
bool fromString(bool* _out, const StringView& _str);

51
src/dtoa.cpp
View File

@@ -472,7 +472,7 @@ namespace bx
}
template<typename Ty>
int32_t toStringSigned(char* _dst, int32_t _max, Ty _value, uint32_t _base)
int32_t toStringSigned(char* _dst, int32_t _max, Ty _value, uint32_t _base, char _separator)
{
if (_base == 10
&& _value < 0)
@@ -483,10 +483,11 @@ namespace bx
}
_max = toString(_dst + 1
, _max - 1
, typename std::make_unsigned<Ty>::type(-_value)
, _base
);
, _max - 1
, typename std::make_unsigned<Ty>::type(-_value)
, _base
, _separator
);
if (_max == 0)
{
return 0;
@@ -497,24 +498,25 @@ namespace bx
}
return toString(_dst
, _max
, typename std::make_unsigned<Ty>::type(_value)
, _base
);
, _max
, typename std::make_unsigned<Ty>::type(_value)
, _base
, _separator
);
}
int32_t toString(char* _dst, int32_t _max, int32_t _value, uint32_t _base)
int32_t toString(char* _dst, int32_t _max, int32_t _value, uint32_t _base, char _separator)
{
return toStringSigned(_dst, _max, _value, _base);
return toStringSigned(_dst, _max, _value, _base, _separator);
}
int32_t toString(char* _dst, int32_t _max, int64_t _value, uint32_t _base)
int32_t toString(char* _dst, int32_t _max, int64_t _value, uint32_t _base, char _separator)
{
return toStringSigned(_dst, _max, _value, _base);
return toStringSigned(_dst, _max, _value, _base, _separator);
}
template<typename Ty>
int32_t toStringUnsigned(char* _dst, int32_t _max, Ty _value, uint32_t _base)
int32_t toStringUnsigned(char* _dst, int32_t _max, Ty _value, uint32_t _base, char _separator)
{
char data[32];
int32_t len = 0;
@@ -525,6 +527,8 @@ namespace bx
return 0;
}
uint32_t count = 1;
do
{
const Ty rem = _value % _base;
@@ -538,7 +542,16 @@ namespace bx
data[len++] = char('a' + rem - 10);
}
} while (_value != 0);
if ('\0' != _separator
&& 0 == count%3
&& 0 != _value)
{
data[len++] = _separator;
}
++count;
}
while (0 != _value);
if (_max < len + 1)
{
@@ -552,14 +565,14 @@ namespace bx
return int32_t(len);
}
int32_t toString(char* _dst, int32_t _max, uint32_t _value, uint32_t _base)
int32_t toString(char* _dst, int32_t _max, uint32_t _value, uint32_t _base, char _separator)
{
return toStringUnsigned(_dst, _max, _value, _base);
return toStringUnsigned(_dst, _max, _value, _base, _separator);
}
int32_t toString(char* _dst, int32_t _max, uint64_t _value, uint32_t _base)
int32_t toString(char* _dst, int32_t _max, uint64_t _value, uint32_t _base, char _separator)
{
return toStringUnsigned(_dst, _max, _value, _base);
return toStringUnsigned(_dst, _max, _value, _base, _separator);
}
/*

41
tests/string_test.cpp
View File

@@ -223,6 +223,39 @@ TEST_CASE("strFind", "")
}
}
template<typename Ty>
static bool testToStringS(Ty _value, const char* _expected, char _separator = '\0')
{
char tmp[1024];
int32_t num = bx::toString(tmp, BX_COUNTOF(tmp), _value, 10, _separator);
int32_t len = (int32_t)bx::strLen(_expected);
if (0 == bx::strCmp(tmp, _expected)
&& num == len)
{
return true;
}
printf("result '%s' (%d), expected '%s' (%d)\n", tmp, num, _expected, len);
return false;
}
TEST_CASE("toString intXX_t/uintXX_t", "")
{
REQUIRE(testToStringS(0, "0") );
REQUIRE(testToStringS(-256, "-256") );
REQUIRE(testToStringS(INT32_MAX, "2147483647") );
REQUIRE(testToStringS(UINT32_MAX, "4294967295") );
REQUIRE(testToStringS(INT64_MAX, "9223372036854775807") );
REQUIRE(testToStringS(UINT64_MAX, "18446744073709551615") );
REQUIRE(testToStringS(0, "0", ',') );
REQUIRE(testToStringS(-256, "-256", ',') );
REQUIRE(testToStringS(INT32_MAX, "2,147,483,647", ',') );
REQUIRE(testToStringS(UINT32_MAX, "4,294,967,295", ',') );
REQUIRE(testToStringS(INT64_MAX, "9,223,372,036,854,775,807", ',') );
REQUIRE(testToStringS(UINT64_MAX, "18,446,744,073,709,551,615", ',') );
}
template<typename Ty>
static bool testToString(Ty _value, const char* _expected)
{
@@ -239,14 +272,6 @@ static bool testToString(Ty _value, const char* _expected)
return false;
}
TEST_CASE("toString int32_t/uint32_t", "")
{
REQUIRE(testToString(0, "0") );
REQUIRE(testToString(-256, "-256") );
REQUIRE(testToString(INT32_MAX, "2147483647") );
REQUIRE(testToString(UINT32_MAX, "4294967295") );
}
TEST_CASE("toString double", "")
{
REQUIRE(testToString(0.0, "0.0") );