for library: phonenumbers (pypi, source) Python version of Google’s common library for parsing, formatting, storing and validating international phone numbers. The readme is insufficient, but I found the code well documented.
Yes. It’s usually defined as something like the following (on 32-bit systems): typedef unsigned int size_t; Reference: C++ Standard Section 18.1 defines size_t is in <cstddef> which is described in C Standard as <stddef.h>. C Standard Section 4.1.5 defines size_t as an unsigned integral type of the result of the sizeof operator
UPDATE: This answer was written in 2010 and as anticipated std::auto_ptr has been deprecated. The advice is entirely valid. In C++0x std::auto_ptr will be deprecated in favor of std::unique_ptr. The choice of smart pointer will depend on your use case and your requirements, with std::unique_ptr with move semantics for single ownership that can be used … Read more
The expression p++ which you’ve written is at namespace scope. It is forbidden by the grammer of namespace-body which is defined in §7.3.1/1 as: namespace-body: declaration-seqopt which says the namespace-body can optionally contain only declaration. And p++ is surely not a declaration, it is an expression, therefore the Standard implicitly forbids it. The Standard might … Read more
If you look at the expression p[1], p is a Base* (Base is a completely-defined type) and 1 is an int, so according to ISO/IEC 14882:2003 5.2.1 [expr.sub] this expression is valid and identical to *((p)+(1)). From 5.7 [expr.add] / 5, when an integer is added to a pointer, the result is only well defined … Read more
On storage duration: 2.13.4 Ordinary string literals and UTF-8 string literals are also referred to as narrow string literals. A narrow string literal has type “array of n const char”, where n is the size of the string as defined below, and has static storage duration read in conjunction with 3.7.1 3.7.1. All objects which … Read more
Macros are simply textual substitution, so in your example writing TIMER_100_MS in a program is a fancy way of writing 32768 / 10. Therefore, the question is when the compiler would evaluate 32768 / 10, which is a constant integral expression. I don’t think the standard requires any particular behavior here (since run-time and compile-time … Read more
Send a URLEncoded NULL value (%00) for any thing that you’re specifically setting to null. It should be correctly URL Decoded.
The other likely size for it is that of int, being the “efficient” integer type for the platform. On architectures where it makes any difference whether the implementation chooses 1 or sizeof(int) there could be a trade-off between size (but if you’re happy to waste 7 bits per bool, why shouldn’t you be happy to … Read more
Short answer: Go ahead, nothing bad will happen. Long answer: The C++ standard extensively protects the ::std namespace in C++11 17.6.4.2.1, but specifically allows your case in paragraphs 1 and 2: The behavior of a C++ program is undefined if it adds declarations or definitions to namespace std or to a namespace within namespace std … Read more