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c++ Programming Glossary: c89“C subset of C++” -> Where not ? examples? [closed] http://stackoverflow.com/questions/1201593/c-subset-of-c-where-not-examples languages share improve this question If you compare C89 with C then here are a couple of things No tentative definitions..
Efficient unsigned-to-signed cast avoiding implementation-defined behavior http://stackoverflow.com/questions/13150449/efficient-unsigned-to-signed-cast-avoiding-implementation-defined-behavior The original C 98 standard was based on the much older C89 which says section 3.1.2.5 For each of the signed integer types.. representation of the same value in each type is the same. C89 says nothing about only having one sign bit or only allowing.. inherit climits from Standard C but now Standard C means C89 C90. All of these C 98 C 03 C89 C90 have the wording I give..
why unsigned int 0xFFFFFFFF is equal to int -1? http://stackoverflow.com/questions/1863153/why-unsigned-int-0xffffffff-is-equal-to-int-1
http://stackoverflow.com/questions/2132273/what-does-malloc0-return a pointer to a new allocated buffer. But if size is 0 C89 says that the effect is equivalent to free ptr . Interestingly.. can't find that statement in C99 draft n1256 or n1336 . In C89 the only sensible value to return in that case would be NULL..
http://stackoverflow.com/questions/216510/extern-inline c c inline share improve this question in K R C or C89 inline was not part of the language. Many compilers implemented..
Purpose of Unions in C and C++ http://stackoverflow.com/questions/2310483/purpose-of-unions-in-c-and-c Otherwise the value read is implementation defined. C89 90 called this out under unspecified behavior Annex J and K..
Why isnt int pow(int base, int exponent) in the standard C++ libraries? http://stackoverflow.com/questions/2398442/why-isnt-int-powint-base-int-exponent-in-the-standard-c-libraries rationale document specifically carries forward two of the C89 guiding principles which limit what can be added Keep the language..
Do class/struct members always get created in memory in the order they were declared? http://stackoverflow.com/questions/281045/do-class-struct-members-always-get-created-in-memory-in-the-order-they-were-decl goes on to say a bit more about padding and addresses. The C89 equivalent section is ยง6.5.2.1. C is a bit more complicated...
Initializing an object to all zeroes http://stackoverflow.com/questions/2837854/initializing-an-object-to-all-zeroes macros for example . The drawback of 0 initializer in C89 90 and C is that it can only be used as a part of declaration... use memset in order to zero something out in the middle of C89 90 or C the code. Yet I'd say that the proper way to do is still..
Why does C++ require a cast for malloc() but C doesn't? http://stackoverflow.com/questions/3477741/why-does-c-require-a-cast-for-malloc-but-c-doesnt two versions IMO. Note the void type was added in the C89 standard earlier versions of C had malloc return char so in.. pointer type. Almost everybody supports at least the C89 standard though so the odds of you running into one of those..
http://stackoverflow.com/questions/5516044/system-where-1-byte-8-bit a minimum of 8 bits for char at least as far back as the C89 standard. Edit For example C90 ยง5.2.4.2.1 requires CHAR_BIT.. C90 ยง5.2.4.2.1 requires CHAR_BIT 8 and UCHAR_MAX 255. C89 uses a different section number I believe that would be ยง2.2.4.2.1..
Is there any reason to use C instead of C++ for embedded development? http://stackoverflow.com/questions/812717/is-there-any-reason-to-use-c-instead-of-c-for-embedded-development Question I have two compilers on my hardware C and C89 I'm thinking about using C with classes but without polymorphism.. automatic casting . Do you see any reason to stick with C89 when developing for very limited hardware 4kb of RAM Conclusion.. I've found a way to inline functions in my C compiler C89 . It is hard to accept one answer as you provided so many good..
Where do I find the current C or C++ standard documents? http://stackoverflow.com/questions/81656/where-do-i-find-the-current-c-or-c-standard-documents for right now where are there good online resources for C89 C99 C 03 C 11 c c standards c faq share improve this question..
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