a275c71170
(Note: Reducing compiler warnings across all, but primarily LP64 platforms, is a long term objective.) Reduce compiler warnings on LP64 platforms (macOS, Windows) and 32-bit builds (Win32). Prefer 'size_t' for pointer arithmetic, array indexing and extents; 'int' hasn't been used for these purposes for many years and across many ANSI standards. N.B. that conversions from int or int32 to size_t cause the compiler to zero-extend the value, which is inefficient. Refactor printf() format modifiers into sim_printf_fmts.h. Add the SIZE_T_FMT modifier for better portability, especially on LP64 platforms where size_t is unsigned long and sizeof(size_t) > sizeof(int). 3B2: Fix known size_t printf() format.
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
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* sim_printf_fmts.h
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*
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* Cross-platform printf() formats for simh data types. Refactored out to
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* this header so that these formats are avaiable to more than SCP.
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*
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* Author: B. Scott Michel
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*
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* "scooter me fecit"
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*~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~*/
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#pragma once
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#if !defined(SIM_PRINTF_H)
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/* cross-platform printf() format specifiers:
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*
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* Note: MS apparently does recognize "ll" as "l" in its printf() routines, but "I64" is
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* preferred for 64-bit types.
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*
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* MinGW note: __MINGW64__ and __MINGW32__ are both defined by 64-bit gcc. Check
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* for __MINGW64__ before __MINGW32__.
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*
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*
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* LL_FMT: long long format modifier, e.g. "%016" LL_FMT "x"
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* SIZE_T: size_t format modifier, e.g., "%" SIZE_T_FMT "u" (can use "d", but you will
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* probably get a warning.)
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* T_UINT64_FMT: t_uint64 format modifier, e.g. "%016" T_UINT64_FMT "x"
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* T_INT64_FMT: t_int64 format modifier, e.g., "%" T_INT64_FMT "d"
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* POINTER_FMT: Format modifier for pointers, e.g. "%08" POINTER_FMT "X"
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*/
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#if defined (_WIN32) || defined(_WIN64)
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# if defined(__MINGW64__)
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# define LL_FMT "I64"
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# define SIZE_T_FMT "I64"
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# elif defined(_MSC_VER) || defined(__MINGW32__)
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# define LL_FMT "ll"
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# define SIZE_T_FMT "z"
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# else
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/* Graceful fail -- shouldn't ever default to this on a Windows platform. */
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# define LL_FMT "ll"
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# define SIZE_T_FMT "I32"
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# endif
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# define T_UINT64_FMT "I64"
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# define T_INT64_FMT "I64"
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# define POINTER_FMT "p"
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#elif defined(__GNU_LIBRARY__) || defined(__GLIBC__) || defined(__GLIBC_MINOR__) || \
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defined(__APPLE__)
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/* GNU libc (Linux) and macOS */
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# define LL_FMT "ll"
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# define SIZE_T_FMT "z"
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# define T_UINT64_FMT "ll"
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# define T_INT64_FMT "ll"
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# define POINTER_FMT "p"
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#elif defined(__VAX)
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/* No 64 bit ints on VAX, nothing special about size_t */
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# define LL_FMT "l"
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# define SIZE_T_FMT ""
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# define T_UINT64_FMT ""
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# define T_INT64_FMT ""
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# define POINTER_FMT ""
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#else
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/* Defaults. */
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# define LL_FMT "ll"
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# define SIZE_T_FMT ""
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# define T_UINT64_FMT ""
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# define T_INT64_FMT ""
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# define POINTER_FMT ""
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#endif
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#if defined (USE_INT64) && defined (USE_ADDR64)
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# define T_ADDR_FMT T_UINT64_FMT
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#else
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# define T_ADDR_FMT ""
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#endif
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#if defined (USE_INT64)
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# define T_VALUE_FMT T_UINT64_FMT
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# define T_SVALUE_FMT T_INT64_FMT
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#else
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# define T_VALUE_FMT ""
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# define T_SVALUE_FMT ""
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#endif
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#define SIM_PRINTF_H
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#endif
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