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Document assumptions about C++ compiler

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practicalswift 2019-03-04 14:55:44 +01:00
parent c7ea8d3236
commit c7a7250302
1 changed files with 11 additions and 0 deletions
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src/compat/assumptions.h
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@ -17,6 +17,17 @@
# error "Bitcoin cannot be compiled without assertions." # error "Bitcoin cannot be compiled without assertions."
#endif #endif
// Assumption: We assume a C++11 (ISO/IEC 14882:2011) compiler (minimum requirement).
// Example(s): We assume the presence of C++11 features everywhere :-)
// Note: MSVC does not report the expected __cplusplus value due to legacy
// reasons.
#if !defined(_MSC_VER)
// ISO Standard C++11 [cpp.predefined]p1:
// "The name __cplusplus is defined to the value 201103L when compiling a C++
// translation unit."
static_assert(__cplusplus >= 201103L, "C++11 standard assumed");
#endif
// Assumption: We assume the floating-point types to fulfill the requirements of // Assumption: We assume the floating-point types to fulfill the requirements of
// IEC 559 (IEEE 754) standard. // IEC 559 (IEEE 754) standard.
// Example(s): Floating-point division by zero in ConnectBlock, CreateTransaction // Example(s): Floating-point division by zero in ConnectBlock, CreateTransaction