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src: enable -Wzero-as-null-pointer-constant when using clang

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This commit is contained in:
Markus F.X.J. Oberhumer 2022-08-20 10:51:08 +02:00
parent d001a63bce
commit 6931a3aa70
3 changed files with 13 additions and 10 deletions
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7
src/conf.h
View File

@ -78,8 +78,9 @@ ACC_COMPILE_TIME_ASSERT_HEADER(-1 == ~0) // two's complement - see http://wg21.l
ACC_COMPILE_TIME_ASSERT_HEADER(0u-1 == ~0u) // two's complement - see http://wg21.link/P0907R4
ACC_COMPILE_TIME_ASSERT_HEADER((1u << 31) << 1 == 0)
ACC_COMPILE_TIME_ASSERT_HEADER(((int)(1u << 31)) >> 31 == -1) // arithmetic right shift
ACC_COMPILE_TIME_ASSERT_HEADER((-1) >> 31 == -1) // arithmetic right shift
ACC_COMPILE_TIME_ASSERT_HEADER(CHAR_MAX == 255) // -funsigned-char
ACC_COMPILE_TIME_ASSERT_HEADER((char)(-1) > 0) // -funsigned-char
ACC_COMPILE_TIME_ASSERT_HEADER((char)(-1) == 255) // -funsigned-char
// enable/disable some warnings
// Some non-GLIBC toolchains do not use 'nullptr' everywhere when C++:
@ -88,6 +89,8 @@ ACC_COMPILE_TIME_ASSERT_HEADER((char)(-1) > 0) // -funsigned-char
// 51:32: error: zero as null pointer constant
#if (ACC_CC_GNUC >= 0x040700) && defined(__GLIBC__)
# pragma GCC diagnostic error "-Wzero-as-null-pointer-constant"
#elif (ACC_CC_CLANG >= 0x050000ul)
# pragma clang diagnostic error "-Wzero-as-null-pointer-constant"
#endif
#if (ACC_CC_MSC)
@ -325,7 +328,7 @@ inline void NO_fprintf(FILE *, const char *, ...) {}
typedef a acc_tmp_a_t; typedef b acc_tmp_b_t; \
__packed_struct(acc_tmp_t) acc_tmp_b_t x; acc_tmp_a_t y; acc_tmp_b_t z; __packed_struct_end() \
COMPILE_TIME_ASSERT(sizeof(struct acc_tmp_t) == 2*sizeof(b)+sizeof(a)) \
COMPILE_TIME_ASSERT(sizeof(((acc_tmp_t*)0)->x)+sizeof(((acc_tmp_t*)0)->y)+sizeof(((acc_tmp_t*)0)->z) == 2*sizeof(b)+sizeof(a)) \
COMPILE_TIME_ASSERT(sizeof(((acc_tmp_t*)nullptr)->x)+sizeof(((acc_tmp_t*)nullptr)->y)+sizeof(((acc_tmp_t*)nullptr)->z) == 2*sizeof(b)+sizeof(a)) \
}
#if defined(__acc_alignof)
# define __COMPILE_TIME_ASSERT_ALIGNOF(a,b) \

6
src/miniacc.h
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@ -4822,7 +4822,7 @@ typedef unsigned short wchar_t;
#endif
#endif
#ifndef offsetof
#define offsetof(s,m) ((size_t)((ptrdiff_t)&(((s*)0)->m)))
#define offsetof(s,m) ((size_t)((ptrdiff_t)&(((s*)nullptr)->m)))
#endif
#endif
#elif (ACC_LIBC_FREESTANDING)
@ -5771,9 +5771,9 @@ ACCLIB_EXTERN(int, acc_spawnve) (int mode, const char* fn, const char* const * a
ACCCHK_ASSERT(sizeof(ptrdiff_t) >= sizeof(int))
ACCCHK_ASSERT(sizeof(ptrdiff_t) >= sizeof(size_t))
#if !(ACC_BROKEN_SIZEOF)
ACCCHK_ASSERT(sizeof(ptrdiff_t) == sizeof(ACC_STATIC_CAST(char*, 0) - ACC_STATIC_CAST(char*, 0)))
ACCCHK_ASSERT(sizeof(ptrdiff_t) == sizeof(ACC_STATIC_CAST(char*, nullptr) - ACC_STATIC_CAST(char*, nullptr)))
# if (ACC_HAVE_MM_HUGE_PTR)
ACCCHK_ASSERT(4 == sizeof(ACC_STATIC_CAST(char __huge*, 0) - ACC_STATIC_CAST(char __huge*, 0)))
ACCCHK_ASSERT(4 == sizeof(ACC_STATIC_CAST(char __huge*, nullptr) - ACC_STATIC_CAST(char __huge*, nullptr)))
# endif
#endif
#if (ACC_SIZEOF_PTRDIFF_T > 0)

10
src/pefile.cpp
View File

@ -151,8 +151,8 @@ int PeFile::readFileHeader()
COMPILE_TIME_ASSERT(sizeof(exe_header_t) == 64)
COMPILE_TIME_ASSERT_ALIGNED1(exe_header_t)
COMPILE_TIME_ASSERT(sizeof(((exe_header_t*)0)->_) == 18)
COMPILE_TIME_ASSERT(sizeof(((exe_header_t*)0)->__) == 34)
COMPILE_TIME_ASSERT(sizeof(((exe_header_t*)nullptr)->_) == 18)
COMPILE_TIME_ASSERT(sizeof(((exe_header_t*)nullptr)->__) == 34)
exe_header_t h;
int ic;
@ -2096,8 +2096,8 @@ unsigned PeFile::stripDebug(unsigned overlaystart)
COMPILE_TIME_ASSERT(sizeof(debug_dir_t) == 28)
COMPILE_TIME_ASSERT_ALIGNED1(debug_dir_t)
COMPILE_TIME_ASSERT(sizeof(((debug_dir_t*)0)->_) == 16)
COMPILE_TIME_ASSERT(sizeof(((debug_dir_t*)0)->__) == 4)
COMPILE_TIME_ASSERT(sizeof(((debug_dir_t*)nullptr)->_) == 16)
COMPILE_TIME_ASSERT(sizeof(((debug_dir_t*)nullptr)->__) == 4)
unsigned const take = IDSIZE(PEDIR_DEBUG);
unsigned const skip = IDADDR(PEDIR_DEBUG);
@ -2166,7 +2166,7 @@ void PeFile::checkHeaderValues(unsigned subsystem, unsigned mask,
if (IDSIZE(PEDIR_COMRT))
throwCantPack(".NET files are not yet supported");
if(isection == NULL)
if (isection == nullptr)
throwCantPack("No section was found");
if (memcmp(isection[0].name,"UPX",3) == 0)