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Add sizeof(size_t) assumptions

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practicalswift 2019-03-04 11:03:50 +01:00
parent 2d46f1be0c
commit c7ea8d3236
1 changed files with 6 additions and 1 deletions
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7
src/compat/assumptions.h
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@ -40,8 +40,13 @@ static_assert(sizeof(double) == 8, "64-bit double assumed");
static_assert(sizeof(short) == 2, "16-bit short assumed");
static_assert(sizeof(int) == 4, "32-bit int assumed");
// Assumption: We assume size_t to be 32-bit or 64-bit.
// Example(s): size_t assumed to be at least 32-bit in ecdsa_signature_parse_der_lax(...).
// size_t assumed to be 32-bit or 64-bit in MallocUsage(...).
static_assert(sizeof(size_t) == 4 || sizeof(size_t) == 8, "size_t assumed to be 32-bit or 64-bit");
static_assert(sizeof(size_t) == sizeof(void*), "Sizes of size_t and void* assumed to be equal");
// Some important things we are NOT assuming (non-exhaustive list):
// * We are NOT assuming a specific value for sizeof(std::size_t).
// * We are NOT assuming a specific value for std::endian::native.
// * We are NOT assuming a specific value for std::locale("").name().
// * We are NOT assuming a specific value for std::numeric_limits<char>::is_signed.