\( % Arcus cosine. \def\acos{\cos^{-1}} % Vector projection. \def\projection#1#2{{proj_{#1}\left(#2\right)}} % Vector rejection. \def\rejection#1#2{{rej_{#1}\left(#2\right)}} % Norm. \def\norm#1{{\left\|#1\right\|}} % Cross product. \def\cross#1#2{\mathit{cross}\left(#1,#2\right)} % Dot product. \def\dot#1#2{{#1 \cdot #2}} % Magnitude. \def\mag#1{{\left|#1\right}} \def\group#1{\left(#1\right)}} \def\sbgrp#1{\left\{#1\right\}} \)

Ring1_Memory_zeroFillArray

Zero a memory block.

Ring1_Result
Ring1_Memory_zeroFillArray
  (
    void *p,
    size_t numberOfElements,
    size_t elementSize
  )

This function assignes the value zero to the first numberOfElements * elementSize Bytes of the memory block pointed to by p. In particular, this function fails if the product of numberOfElements * elementSize would overflow.

Parameter variables

p
A pointer to a memory block of n Bytes.
numberOfElements, elementSize
The product numberOfElements, elementSize the number of Bytes.

Return Values

Ring1_Result_Success on success, Ring1_Result_Failure on failure.

Post Conditions

If this function fails, then it sets the by-thread status variable.

Below is a list of failure conditions and the status codes indicating them.

Ring1_Status_InvalidArgument
p is NULL
Ring1_Status_NumericOverflow
numberOfElements * elementSize overflows

If this function fails, p is not dereferenced.