SEI CERT C Coding Standard

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changes.mady.by.user David Keaton

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Comment: Removed the section titled "Implementation Details"

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Code Block
bgColor#ccccff
int *loop_ptr;
int *int_ptr;

int *loopFunction(int *v_pointer) {
  return v_pointer;
}
int_ptr = loopFunction(loop_ptr);

Implementation Details

The following list shows common alignments for Microsoft, Borland, and GNU compilers for the IA-32 architecture.

Type

Alignment

char

1 byte aligned

short

2 byte aligned

int

4 byte aligned

float

4 byte aligned

double

8 byte on Windows, 4 byte on Linux

Risk Assessment

Accessing a pointer or an object that is no longer on the correct access boundary can cause a program to crash, give wrong information, or may cause slow pointer accesses (if the architecture allows misaligned accesses).

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