Fills a buffer with random bytes from the operating system.
Synopsis
Declared in <llvm/Support/RandomNumberGenerator.h>
std::error_code
getRandomBytes(
void* Buffer,
size_t Size);Description
On Windows this uses CryptGenRandom; elsewhere it reads from /dev/urandom. This is not the deterministic generator provided by RandomNumberGenerator.
Return Value
A default‐constructed error_code on success, or an error on failure.
Parameters
Name |
Description |
Buffer |
Destination buffer to fill. |
Size |
Number of bytes to write into |
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