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(svn r17810) -Codechange/Fix: Add assert_tcompile() and use it.

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OTTD's traditional assert_compile() does not work inside templates for gcc compilers, static_assert() does though.
  The new assert_tcompile() resolves into static_assert() if present, or into a runtime assert() else.
This commit is contained in:
frosch 2009-10-18 20:26:29 +00:00
parent fea06c5755
commit b8f8c60839
2 changed files with 4 additions and 1 deletions
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2
src/industry_gui.cpp
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@ -85,7 +85,7 @@ static void GetCargoSuffix(uint cargo, CargoSuffixType cst, const Industry *ind,
template <typename TC, typename TS>
static inline void GetAllCargoSuffixes(uint cb_offset, CargoSuffixType cst, const Industry *ind, IndustryType ind_type, const IndustrySpec *indspec, const TC &cargos, TS &suffixes)
{
assert_compile(lengthof(cargos) <= lengthof(suffixes));
assert_tcompile(lengthof(cargos) <= lengthof(suffixes));
for (uint j = 0; j < lengthof(cargos); j++) {
if (cargos[j] != CT_INVALID) {
GetCargoSuffix(cb_offset + j, cst, ind, ind_type, indspec, suffixes[j], lastof(suffixes[j]));

3
src/stdafx.h
View File

@ -301,11 +301,14 @@ typedef unsigned char byte;
#if defined(__STDCXX_VERSION__) || defined(__GXX_EXPERIMENTAL_CXX0X__) || defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(static_assert)
/* __STDCXX_VERSION__ is c++0x feature macro, __GXX_EXPERIMENTAL_CXX0X__ is used by gcc, __GXX_EXPERIMENTAL_CPP0X__ by icc */
#define assert_compile(expr) static_assert(expr, #expr )
#define assert_tcompile(expr) assert_compile(expr)
#elif defined(__OS2__) || (defined(__GNUC__) && __GNUC__ == 3 && __GNUC_MINOR__ < 4)
/* Disabled for OS/2 or GCC < 3.4 (GCC < 3 isn't supported anymore) */
#define assert_compile(expr)
#define assert_tcompile(expr) assert(expr)
#else
#define assert_compile(expr) extern const int __ct_assert__[1 - 2 * !(expr)] UNUSED
#define assert_tcompile(expr) assert(expr)
#endif
/* Check if the types have the bitsizes like we are using them */