hito / util.c

#include "util.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdnoreturn.h>
#include <string.h>
bool starts_with_any_impl(const char *str, ...) {
    va_list args;
    va_start(args, str);

    const char *prefix;
    while ((prefix = va_arg(args, const char *)) != NULL) {
        if (strncmp(str, prefix, strlen(prefix)) == 0) {
            va_end(args);
            return true;
        }
    }
    va_end(args);
    return false;
}
noreturn void die_impl(const char *file, int line, const char *fmt, ...) {
    va_list args;
    va_start(args, fmt);

    fprintf(stderr, "[%s:%d] ", file, line);
    vfprintf(stderr, fmt, args);
    va_end(args);

    fputc('\n', stderr);
    exit(1);
}
size_t hash_buffer(const char *buf, size_t len) {
    size_t hash = 2166136261u;
    for (size_t i = 0; i < len; i++) {
        hash ^= (unsigned char)buf[i];
        hash *= 16777619u;
    }
    return hash;
}

size_t hash_string(const char *str) {
    size_t hash = 2166136261u;
    while (*str) {
        hash ^= (unsigned char)(*str++);
        hash *= 16777619u;
    }
    return hash;
}