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S8Split2

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Kevin Trogant 2025-12-12 11:27:16 +01:00
parent 3a4af168b1
commit b3345df5bf
1 changed files with 56 additions and 0 deletions
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56
rtcore.h
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@ -212,6 +212,10 @@ RTC_API u8 *S8End(s8 s);
/* Splits the given string s at the first occurence of c. /* Splits the given string s at the first occurence of c.
* If c does not occur, split_result.first contains the whole string */ * If c does not occur, split_result.first contains the whole string */
RTC_API split_result S8Split(s8 s, u8 c); RTC_API split_result S8Split(s8 s, u8 c);
/* Splits the given string s at the first occurence of c.
* If c does not occur, split_result.first contains the whole string.
* This version also consumes repeating occurences of c */
RTC_API split_result S8Split2(s8 s, u8 c);
/* Creates a clone of string s on arena a */ /* Creates a clone of string s on arena a */
RTC_API s8 S8Clone(s8 s, arena *a); RTC_API s8 S8Clone(s8 s, arena *a);
@ -254,6 +258,43 @@ RTC_API b32 WriteEntireFile(s8 path, byte *data, isize length);
#define AtomicLoadAcquire(_ptr) _InterlockedOr_HLEAcquire(_ptr, 0) #define AtomicLoadAcquire(_ptr) _InterlockedOr_HLEAcquire(_ptr, 0)
#endif #endif
/* Aliases for intrinsics */
#if defined(__GNUC__) || defined(__clang__)
#define CTZ32(ui) __builtin_ctz(ui)
#define CTZ64(ul) __builtin_ctzl(ul)
#define CLZ32(ui) __builtin_clz(ui)
#define CLZ64(ul) __builtin_clzl(ul)
#define PopCount32(_x) __builtin_popcount(_x)
#define PopCount64(_x) __builtin_popcountl(_x)
#elif defined(_MSC_VER)
static force_inline unsigned int CTZ32(u32 x)
{
unsigned int index;
_BitScanReverse(&index, x);
return index;
}
static force_inline unsigned int CTZ64(u64 x)
{
unsigned int index;
_BitScanReverse64(&index, x);
return index;
}
static force_inline unsigned int CLZ32(u32 x)
{
unsigned int index;
_BitScanForward(&index, x);
return index;
}
static force_inline unsigned int CLZ64(u64 x)
{
unsigned int index;
_BitScanForward64(&index, x);
return index;
}
#define PopCount32(_x) __popcnt(_x)
#define PopCount64(_x) __popcnt64(_x)
#endif
/* Threading wrapper */ /* Threading wrapper */
typedef struct thread thread; typedef struct thread thread;
@ -391,6 +432,21 @@ S8Split(s8 s, u8 c)
S8Span(chr + 1, S8End(s) + 1), S8Span(chr + 1, S8End(s) + 1),
}; };
} }
RTC_API split_result
S8Split2(s8 s, u8 c)
{
u8 *chr = S8Chr(s, c);
if (!chr)
return (split_result){s};
split_result r = {
.first = S8Span(s.data, chr),
};
u8 *end = S8End(s) + 1;
while (chr != end && *chr == c)
++chr;
r.second = S8Span(chr, end);
return r;
}
RTC_API s8 RTC_API s8
S8Clone(s8 s, arena *a) S8Clone(s8 s, arena *a)
{ {