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| <h3 class="section">6.57 Binary constants using the ‘<samp><span class="samp">0b</span></samp>’ prefix</h3> |
| |
| <p><a name="index-Binary-constants-using-the-_0040samp_007b0b_007d-prefix-3156"></a> |
| Integer constants can be written as binary constants, consisting of a |
| sequence of ‘<samp><span class="samp">0</span></samp>’ and ‘<samp><span class="samp">1</span></samp>’ digits, prefixed by ‘<samp><span class="samp">0b</span></samp>’ or |
| ‘<samp><span class="samp">0B</span></samp>’. This is particularly useful in environments that operate a |
| lot on the bit-level (like microcontrollers). |
| |
| <p>The following statements are identical: |
| |
| <pre class="smallexample"> i = 42; |
| i = 0x2a; |
| i = 052; |
| i = 0b101010; |
| </pre> |
| <p>The type of these constants follows the same rules as for octal or |
| hexadecimal integer constants, so suffixes like ‘<samp><span class="samp">L</span></samp>’ or ‘<samp><span class="samp">UL</span></samp>’ |
| can be applied. |
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