902133edd3
- 8 DB models (services, incidents, monitors, subscribers, etc.) - Full CRUD API for services, incidents, monitors - Public status page with live data - Incident detail page with timeline - API key authentication - Uptime monitoring scheduler - 13 tests passing - TECHNICAL_DESIGN.md with full spec
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
#ifndef BASE64_ENV_H
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#define BASE64_ENV_H
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#include <stdint.h>
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// This header file contains macro definitions that describe certain aspects of
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// the compile-time environment. Compatibility and portability macros go here.
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// Define machine endianness. This is for GCC:
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#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
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# define BASE64_LITTLE_ENDIAN 1
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#else
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# define BASE64_LITTLE_ENDIAN 0
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#endif
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// This is for Clang:
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#ifdef __LITTLE_ENDIAN__
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# define BASE64_LITTLE_ENDIAN 1
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#endif
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#ifdef __BIG_ENDIAN__
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# define BASE64_LITTLE_ENDIAN 0
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#endif
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// MSVC++ needs intrin.h for _byteswap_uint64 (issue #68):
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#if BASE64_LITTLE_ENDIAN && defined(_MSC_VER)
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# include <intrin.h>
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#endif
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// Endian conversion functions:
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#if BASE64_LITTLE_ENDIAN
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# ifdef _MSC_VER
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// Microsoft Visual C++:
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# define BASE64_HTOBE32(x) _byteswap_ulong(x)
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# define BASE64_HTOBE64(x) _byteswap_uint64(x)
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# else
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// GCC and Clang:
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# define BASE64_HTOBE32(x) __builtin_bswap32(x)
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# define BASE64_HTOBE64(x) __builtin_bswap64(x)
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# endif
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#else
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// No conversion needed:
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# define BASE64_HTOBE32(x) (x)
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# define BASE64_HTOBE64(x) (x)
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#endif
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// Detect word size:
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#if defined (__x86_64__)
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// This also works for the x32 ABI, which has a 64-bit word size.
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# define BASE64_WORDSIZE 64
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#elif SIZE_MAX == UINT32_MAX
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# define BASE64_WORDSIZE 32
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#elif SIZE_MAX == UINT64_MAX
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# define BASE64_WORDSIZE 64
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#else
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# error BASE64_WORDSIZE_NOT_DEFINED
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#endif
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// End-of-file definitions.
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// Almost end-of-file when waiting for the last '=' character:
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#define BASE64_AEOF 1
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// End-of-file when stream end has been reached or invalid input provided:
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#define BASE64_EOF 2
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// GCC 7 defaults to issuing a warning for fallthrough in switch statements,
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// unless the fallthrough cases are marked with an attribute. As we use
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// fallthrough deliberately, define an alias for the attribute:
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#if __GNUC__ >= 7
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# define BASE64_FALLTHROUGH __attribute__((fallthrough));
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#else
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# define BASE64_FALLTHROUGH
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#endif
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// Declare macros to ensure that functions that are intended to be inlined, are
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// actually inlined, even when no optimization is applied. A lot of inner loop
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// code is factored into separate functions for reasons of readability, but
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// that code should always be inlined (and optimized) in the main loop.
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#ifdef _MSC_VER
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# define BASE64_FORCE_INLINE __forceinline
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#else
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# define BASE64_FORCE_INLINE inline __attribute__((always_inline))
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#endif
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#endif // BASE64_ENV_H
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