1 #ifndef STRACE_PRINT_UTILS_H
2 # define STRACE_PRINT_UTILS_H
6 /* Hexadecimal output utils */
8 static const char hex_chars[16] = "0123456789abcdef";
11 * Character array representing hexadecimal encoding of a character value.
13 * @param b_ Byte to provide representation for.
15 # define BYTE_HEX_CHARS(b_) \
16 hex_chars[((uint8_t) (b_)) >> 4], hex_chars[((uint8_t) (b_)) & 0xf]
17 # define BYTE_HEX_CHARS_PRINTF(b_) \
18 '\\', 'x', BYTE_HEX_CHARS(b_)
19 # define BYTE_HEX_CHARS_PRINTF_QUOTED(b_) \
20 '\'', BYTE_HEX_CHARS_PRINTF(b_), '\''
23 sprint_byte_hex(char *buf, uint8_t val)
25 *buf++ = hex_chars[val >> 4];
26 *buf++ = hex_chars[val & 0xf];
31 /* Character classification utils */
36 return (c >= ' ') && (c < 0x7f);
39 #endif /* STRACE_PRINT_UTILS_H */