Last change
on this file since 5619 was
3860,
checked in by bensch, 20 years ago
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orxonox/trunk: moved likely to compiler.h in defs
also reset all the UNLIKELY_IF functions to how they should look.
the old approach is still valid, but depricated.
@patrick: i hope this is ok for you, for it is LINUX-standard.
and i think windows is also able to handle likely/unlikely because it is a compiler issue not a system issue
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File size:
545 bytes
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Line | |
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1 | |
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2 | #ifndef _COMPILER_H |
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3 | #define _COMPILER_H |
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4 | |
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5 | /* performance tweaking stuff */ |
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6 | #if __GNUC__ == 2 && __GNUC_MINOR__ < 96 |
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7 | #define __builtin_expect(x, expected_value) (x) |
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8 | #endif |
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9 | |
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10 | #define likely(x) __builtin_expect((x),1) |
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11 | #define unlikely(x) __builtin_expect((x),0) |
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12 | |
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13 | #ifdef __unix__ |
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14 | |
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15 | // deprecated // |
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16 | #define __LIKELY_IF(condition) if( likely(condition)) |
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17 | #define __UNLIKELY_IF(condition) if( unlikely(condition)) |
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18 | #else |
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19 | #define __LIKELY_IF(condition) if( condition) |
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20 | #define __UNLIKELY_IF(condition) if( condition) |
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21 | #endif |
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22 | |
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23 | |
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24 | #endif /* _COMPILER_H */ |
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