2023-01-30 08:07:34 -05:00
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#pragma once
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2023-03-14 11:42:41 -04:00
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#include <cstdarg>
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#include <cstdlib>
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2023-01-30 08:07:34 -05:00
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#include <cstdio>
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static inline void _assert(const char *file, int line, const char *exp, bool ev, const char *fmt, ...) {
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if (!ev) {
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va_list va;
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va_start(va, fmt);
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fprintf(stderr, "%s:%d: assertion failed: %s\n", file, line, exp);
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vfprintf(stderr, fmt, va);
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fprintf(stderr, "\n");
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va_end(va);
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exit(1);
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}
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}
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#define STRINGIFY(s) #s
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/* ,##__VA_ARGS__ is a GNU C extension */
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#define my_assert(e, fmt, ...) _assert(__FILE__, __LINE__, STRINGIFY(e), (e), fmt ,##__VA_ARGS__)
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template<typename V>
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static inline V sign_extend(V x, unsigned len) {
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/* if high bit is 1 */
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if (x >> (len - 1) & 1) {
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V mask = (1 << len) - 1;
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return ~mask | x;
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} else {
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return x;
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}
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}
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#define MASK(x,v) ((x) & ((1 << (v)) - 1))
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template<typename V>
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static inline V mask_extend(V x, unsigned len) {
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return sign_extend<V>(MASK(x,len), len);
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}
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