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Ignore special case in Int64Str. This is hack but good enough for now.

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This commit is contained in:
Jordan Bancino 2023-08-13 12:33:18 +00:00
parent a1da7c7b4a
commit bcfab52f09
1 changed files with 34 additions and 10 deletions
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44
src/Int64.c
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@ -26,6 +26,8 @@
#include <stddef.h>
#include <signal.h>
#include <Log.h>
#ifdef INT64_NATIVE
#define Int64Sign(x) ((int) (((UInt64) (x)) >> 63))
#else
@ -44,17 +46,39 @@ Int64Str(Int64 x, int base, char *out, size_t len)
Int64 base64 = Int64Create(0, base);
if (neg)
{
x = Int64Neg(x);
}
/* We only have symbols up to base 16 */
if (base < 2 || base > 16)
{
return 0;
}
/*
* This algorithm doesn't work on INT64_MIN.
*
* But it works on all other integers in the range, so we
* just scoot the range in by one for now. It's a hack and
* I'm not a huge fan of it, but this function is mostly
* used in Json, which shouldn't have a range this large
* anyway (Json is limited to -2^53 -> 2^53-1).
*
* Proper fixes are always welcome.
*/
if (Int64Eq(x, Int64Create(0x80000000, 0x00000000)))
{
x = Int64Add(x, Int64Create(0, 1));
}
#if 0
else if (Int64Eq(x, Int64Create(0x7FFFFFFF, 0xFFFFFFFF)))
{
x = Int64Sub(x, Int64Create(0, 1));
}
#endif
if (base != 2 && base != 8 && base != 16 && neg)
{
x = Int64Neg(x);
}
do
{
Int64 mod = Int64Rem(x, base64);
@ -65,13 +89,13 @@ Int64Str(Int64 x, int base, char *out, size_t len)
x = Int64Div(x, base64);
} while (Int64Gt(x, Int64Create(0, 0)));
/*
* Binary, octal, and hexadecimal are known to
* be bit representations. Everything else (notably
* decimal) should include the negative sign.
*/
if (base != 2 && base != 8 && base != 16)
{
/*
* Binary, octal, and hexadecimal are known to
* be bit representations. Everything else (notably
* decimal) should include the negative sign.
*/
if (neg)
{
out[i] = '-';