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compat: document redefining ssize_t when using MSVC

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See:
https://docs.microsoft.com/en-us/windows/win32/winprog/windows-data-types#ssize_t
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_types.h.html
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fanquake 2022-06-29 12:18:44 +01:00
parent 3be7ee750f
commit f7dc99244c
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1 changed files with 3 additions and 7 deletions
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10
src/compat/compat.h
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@ -77,14 +77,10 @@ typedef unsigned int SOCKET;
#define MAX_PATH 1024
#endif
// ssize_t is POSIX, and not present when using MSVC.
#ifdef _MSC_VER
#if !defined(ssize_t)
#ifdef _WIN64
typedef int64_t ssize_t;
#else
typedef int32_t ssize_t;
#endif
#endif
#include <BaseTsd.h>
typedef SSIZE_T ssize_t;
#endif
// The type of the option value passed to getsockopt & setsockopt