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Add 'stage0/' from commit 'b3d106ec971300a9c745f4681fab3df7518c4346'

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git-subtree-dir: stage0
git-subtree-mainline: 3db960767d
git-subtree-split: b3d106ec97
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Motiejus Jakštys
2026-02-13 23:32:08 +02:00
parent 3db960767d b3d106ec97
commit b81f72bab3
26 changed files with 26186 additions and 0 deletions
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54
stage0/common.h Normal file
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// common.h — must be included before any system headers.
#ifndef _ZIG0_COMMON_H__
#define _ZIG0_COMMON_H__
#include <stdint.h>
#include <stdlib.h>
#define SLICE(Type) \
struct Type##Slice { \
uint32_t len; \
uint32_t cap; \
Type* arr; \
}
#define ARR_INIT(Type, initial_cap) \
({ \
Type* arr = calloc(initial_cap, sizeof(Type)); \
if (!arr) \
exit(1); \
arr; \
})
#define SLICE_INIT(Type, initial_cap) \
{ .len = 0, .cap = (initial_cap), .arr = ARR_INIT(Type, initial_cap) }
#define SLICE_RESIZE(Type, slice, new_cap) \
({ \
const uint32_t cap = (new_cap); \
Type* new_arr = realloc((slice)->arr, cap * sizeof(Type)); \
if (new_arr == NULL) { \
free((slice)->arr); \
exit(1); \
} \
(slice)->arr = new_arr; \
(slice)->cap = cap; \
})
#define SLICE_ENSURE_CAPACITY(Type, slice, additional) \
({ \
if ((slice)->len + (additional) > (slice)->cap) { \
SLICE_RESIZE(Type, slice, \
((slice)->cap * 2 > (slice)->len + (additional)) \
? (slice)->cap * 2 \
: (slice)->len + (additional)); \
} \
})
#define SLICE_APPEND(Type, slice, item) \
({ \
SLICE_ENSURE_CAPACITY(Type, slice, 1); \
(slice)->arr[(slice)->len++] = (item); \
})
#endif