Last change
on this file since 100 was
82,
checked in by Maciej Komosinski, 12 years ago
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compiles under more platforms and OSes
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-
Property svn:eol-style set to
native
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File size:
1.5 KB
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Rev | Line | |
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[82] | 1 | #ifndef _NONSTD_STL_H_ |
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| 2 | #define _NONSTD_STL_H_ |
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| 3 | |
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| 4 | //stl is not non-standard :-) |
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| 5 | |
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| 6 | #include <string> |
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| 7 | using std::string; |
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| 8 | |
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| 9 | #include <vector> |
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| 10 | using std::vector; |
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| 11 | |
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| 12 | #include <algorithm> //std::min,max,swap |
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| 13 | using std::min; |
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| 14 | using std::max; |
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| 15 | using std::swap; |
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| 16 | |
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| 17 | |
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| 18 | // ------------------- ARRAY_LENGTH ------------------- |
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| 19 | |
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| 20 | //staromodne makro, niezabezpieczone przed uzyciem wskaznika w roli "x" |
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| 21 | //#define ARRAY_LENGTH(x) (sizeof(x)/sizeof((x)[0])) |
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| 22 | |
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| 23 | //hakerskie makro ktore wykrywa czesc pomy³kowych przypadkow uzycia |
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| 24 | //#define ARRAY_LENGTH(x) ((sizeof(x)/sizeof(0[x])) / ((size_t)(!(sizeof(x) % sizeof(0[x]))))) |
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| 25 | |
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| 26 | //szablonowa funkcja pisana przez sredniozaawansowanych, jak to funkcja - nie daje niestety sta³ej w czasie kompilacji |
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| 27 | //template<typename T, std::size_t N> inline std::size_t ARRAY_LENGTH( T(&)[N] ) { return N; } //"constexpr" dopiero w C++0x |
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| 28 | |
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| 29 | //szablony hakerskie: tablica bajtow o dlugosci N - tak dluga jak tablica o któr¹ pytamy... |
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| 30 | template <typename T, std::size_t N> |
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| 31 | char (&array_temp(T (&a)[N]))[N]; |
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| 32 | |
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| 33 | // As litb noted in comments, you need this overload to handle array rvalues |
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| 34 | // correctly (e.g. when array is a member of a struct returned from function), |
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| 35 | // since they won't bind to non-const reference in the overload above. |
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| 36 | template <typename T, std::size_t N> |
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| 37 | char (&array_temp(const T (&a)[N]))[N]; |
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| 38 | |
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| 39 | //...ktor¹ mozna potem uzyc normalnie w sizeof i dzieki temu mamy const w compile-time. tak uzyteczne jak staromodne makro ale z pelna kontrola bledow |
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| 40 | #define ARRAY_LENGTH(x) sizeof(array_temp(x)) |
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| 41 | |
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| 42 | |
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| 43 | #endif |
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| 44 | |
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