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trezor-firmware/crypto/check_mem.h

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#ifndef CHECK_MEM_H
#define CHECK_MEM_H
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#if CHECK_MAJOR_VERSION == 0 && CHECK_MINOR_VERSION < 11
#define _ck_assert_mem(X, Y, L, OP) do { \
const char* _ck_x = (const char*)(void*)(X); \
const char* _ck_y = (const char*)(void*)(Y); \
size_t _ck_l = (L); \
char _ck_x_str[129]; \
char _ck_y_str[129]; \
static char _ck_hexdigits[] = "0123456789abcdef"; \
size_t _ck_i; \
for (_ck_i = 0; _ck_i < ((_ck_l > 64) ? 64 : _ck_l); _ck_i++) { \
_ck_x_str[_ck_i * 2 ] = _ck_hexdigits[(_ck_x[_ck_i] >> 4) & 0xF]; \
_ck_y_str[_ck_i * 2 ] = _ck_hexdigits[(_ck_y[_ck_i] >> 4) & 0xF]; \
_ck_x_str[_ck_i * 2 + 1] = _ck_hexdigits[_ck_x[_ck_i] & 0xF]; \
_ck_y_str[_ck_i * 2 + 1] = _ck_hexdigits[_ck_y[_ck_i] & 0xF]; \
} \
_ck_x_str[_ck_i * 2] = 0; \
_ck_y_str[_ck_i * 2] = 0; \
ck_assert_msg(0 OP memcmp(_ck_y, _ck_x, _ck_l), \
"Assertion '"#X#OP#Y"' failed: "#X"==\"%s\", "#Y"==\"%s\"", _ck_x_str, _ck_y_str); \
} while (0)
#define ck_assert_mem_eq(X, Y, L) _ck_assert_mem(X, Y, L, ==)
#define ck_assert_mem_ne(X, Y, L) _ck_assert_mem(X, Y, L, !=)
#endif
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#endif