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25 lines
756 B
C
25 lines
756 B
C
#ifndef COSMOPOLITAN_LIBC_NT_VERSION_H_
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#define COSMOPOLITAN_LIBC_NT_VERSION_H_
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#include "libc/nt/struct/osversioninfo.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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bool IsAtLeastWindows10(void) pureconst;
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bool32 GetVersionEx(struct NtOsVersionInfo *lpVersionInformation);
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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#define IsAtLeastWindows10() (GetNtMajorVersion() >= 10)
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#define GetNtMajorVersion() \
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({ \
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uintptr_t __x; \
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asm("mov\t%%gs:96,%q0\r\n" \
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"mov\t280(%q0),%b0" \
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: "=q"(__x)); \
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(unsigned char)__x; \
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})
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_NT_VERSION_H_ */
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