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C99 changes vs C89
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http://home.tiscalinet.ch/t_wolf/tw/c/c9x_changes.html
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3 |
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(Numbers are from the web page list.)
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Not done (yet?):
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9, 19. Hexdecimal floating point constants.
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11. _Complex, _Imaginary, _Bool
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14. Variable arrays in parameter lists.
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33. Variable-length arrays
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34. goto restrictions for variable-length arrows
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18. Notation for universal characters \uXXXX
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25. Division and mod truncate toward zero.
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14 |
26. _Bool, float _Complex, double _Complex, long double _Complex
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Done:
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7. __VA_ARGS__
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11, 30, 31, 32. restrict, inline
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12. Allow declarations anywhere.
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15. for loop declarations
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28. structs ending in incomplete type.
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22 |
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Unneeded (already had):
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24 |
1. Translation limits
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6. Empty macro arguments allowed.
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8. #line limit
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27 |
10 // comments
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28 |
16. (Type){initializer list} compound literals
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29 |
17. Named initializers
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30 |
20. LL suffix for long long constants
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31 |
21. IEEE 754 floating-point arithmetic
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32 |
22. Long long type, 64 bits wide.
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33 |
24. Initializers for auto aggregates can be non-constants.
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34 |
26. long long int, unsigned long long int, signed long long int
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35 |
27. require at least one type specifier in a declaration
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36 |
29. Idempotent type qualifiers.
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37 |
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38 |
Unwanted:
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39 |
2. #pragma stdc
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40 |
3. _Pragma
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4. __STDC_VERSION__
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5. __STDC_IEC_559__, __STDC_IEC_559_COMPLEX__,
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__STDC_ISO_10646__
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13. Digraph tokens
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23. __func__ identifier
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46 |
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