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Restrict functions to a single printed page. Use a minimum of two runtime assertions per function. Restrict the scope of data to the smallest possible. Check the return value of all non-void functions, or cast to void to indicate the return value is useless. Use the preprocessor sparingly.
In the C programming language, restrict is a keyword, introduced by the C99 standard, [1] that can be used in pointer declarations. By adding this type qualifier , a programmer hints to the compiler that for the lifetime of the pointer, no other pointer will be used to access the object to which it points.
As of 2014 and C11, there are four type qualifiers in standard C: const , volatile , restrict and _Atomic – the latter has a private name to avoid clashing with user-defined names. [3] The first two of these, const and volatile , are also present in C++, and are the only type qualifiers in C++.
MISRA C:2012 - Addendum 1: Rule Mappings, [18] which contains bi-directional rule mappings between MISRA C:2004 and the new version. It is intended to assist users in migration. MISRA C:2012 - Addendum 2: Coverage of MISRA C:2012 against ISO/IEC TS 17961:2013 "C Secure" [19] MISRA C:2012 - Addendum 3: Coverage of MISRA C:2012 against CERT C [20]
Byte, octet, minimum size of char in C99( see limits.h CHAR_BIT) −128 to +127 0 to 255 2 bytes 16 bits x86 word, minimum size of short and int in C −32,768 to +32,767 0 to 65,535 4 bytes 32 bits x86 double word, minimum size of long in C, actual size of int for most modern C compilers, [8] pointer for IA-32-compatible processors
The element pc requires ten blocks of memory of the size of pointer to char (usually 40 or 80 bytes on common platforms), but element pa is only one pointer (size 4 or 8 bytes), and the data it refers to is an array of ten bytes (sizeof * pa == 10).
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In computer science, pointer analysis, or points-to analysis, is a static code analysis technique that establishes which pointers, or heap references, can point to which variables, or storage locations. It is often a component of more complex analyses such as escape analysis. A closely related technique is shape analysis.