63af3e907b
The unification of memory pools also fixed some memory leaks and hopefully reduced the mallocs of identifier strings significantly by giving them the same pool as the token stream.
72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
#ifndef __UTIL_H__
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#define __UTIL_H__
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* some ANSI color codes */
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#define C_RED "\x1b[31m"
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#define C_GREEN "\x1b[32m"
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#define C_YELLOW "\x1b[33m"
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#define C_BLUE "\x1b[34m"
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#define C_MAGENTA "\x1b[35m"
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#define C_CYAN "\x1b[36m"
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#define C_WHITE "\x1b[37m"
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#define C_IRED "\x1b[31;1m"
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#define C_IGREEN "\x1b[32;1m"
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#define C_IYELLOW "\x1b[33;1m"
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#define C_IBLUE "\x1b[34;1m"
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#define C_IMAGENTA "\x1b[35;1m"
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#define C_IWHITE "\x1b[37;1m"
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#define C_ICYAN "\x1b[36;1m"
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#define C_RESET "\x1b[m"
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#define ERRSZ 4096
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extern char errbuf[ERRSZ];
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extern bool err;
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extern size_t err_ln, err_col;
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#define TRY(expr) {expr; if (err) return;}
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#define TRY_RET(expr, ret) {expr; if (err) return (ret);}
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void set_err(const char *fmt, ...);
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#define ASSERT_UNREACHED() { fprintf(stderr, "Illegal code position reached in %s:%d\n", __FILE__, __LINE__); exit(1); }
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#define IS_NUM(c) (c >= '0' && c <= '9')
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#define IS_ALPHA(c) ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '_')
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#define IS_ALNUM(c) (IS_ALPHA(c) || IS_NUM(c))
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/* Useful for efficiently allocating lots of data that can all be freed at once afterwards. */
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typedef struct Pool {
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struct Pool *next;
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void *data;
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size_t len, cap;
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} Pool;
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Pool *pool_new(size_t init_cap); /* You usually want init_cap to be pretty high. */
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void pool_term(Pool *p);
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void *pool_alloc(Pool *p, size_t bytes);
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#define streq(a, b) (strcmp(a, b) == 0)
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/* check if a null-terminated string and a non-null-terminated string are equal */
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static inline bool streq_0_n(const char *a, const char *b, size_t bn) { return bn == strlen(a) ? strncmp(a, b, bn) == 0 : false; }
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/* a more trusting version of strndup */
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char *sndup(const char *s, size_t n);
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/* sndup with memory pools */
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char *psndup(Pool *p, const char *s, size_t n);
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/* convert a non-null-terminated string to an intmax_t */
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intmax_t stoimax(const char *s, size_t n, size_t base, ssize_t *endpos /* -1 on success */);
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/* convert a non-null-terminated string to a double */
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double stod(const char *s, size_t n, ssize_t *endpos /* -1 on success */);
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/* sets errno on failure */
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char *mreadfile(FILE *fp);
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uint32_t fnv1a32(const void *data, size_t n);
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#endif /* UTIL_H */
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