My function will be called thousands of times. If i want to make it faster, will changing the local function variables to static be of any use? My logic behind this is that, because static variables are persistent between function calls, they are allocated only the first time, and thus, ...
I'm trying to declare a static variable in a class, which any subclass can access. For example, class superclass { public: static int i; }; class...
Declaring Variables as Constants Using const The most important type of constants in C++ are declared by using the keyword const before the variable type. The syntax of a generic declaration looks like this: const type-name constant-name = value; Listing 3.7 shows a simple application that displ...
In order to use ‘char’ type variables “ci”, “cj”, and “ck” in the above asm statement, code segment similar to the following may be used, int temp = ci; asm("add.s32 %0,%1,%2;":"=r"(temp):"r"((int)cj),"r"((int)ck)); ci = temp; Another example where type...
--keep_unneeded_statics Keeps unreferenced static variables. Section 2.3.3 --kr_compatible -pk Allows K&R compatibility. Applies only to C code, not to C++ code. The --strict_ansi option cannot be used with the --kr_compatible option. Section 6.13.2 --multibyte_chars -pc Accepts multib...
1#defineLOOKUP_TYPE struct passwd2#defineFUNCTION_NAMEgetpwuid3#defineDATABASE_NAME passwd4#defineADD_PARAMS uid_t uid5#defineADD_VARIABLES uid6#defineBUFLEN NSS_BUFLEN_PASSWD78#include"../nss/getXXbyYY.c" 【 getXXbyYY.c 】 1#defineREENTRANT_NAMEAPPEND_R (FUNCTION_NAME)2#defineAPPEND_R(...
In particular, avoid using static variables, which can be shared by routines running in separate threads. Otherwise, you might get unexpected results. For help in creating a dynamic link library, look in the RDBMS subdirectory /public, where a template makefile can be found. ...
However, concerning attributes such as dynamic and static (or perhaps strong and weak): Today they’re better applied to individual features of a programming language than to the language as a whole. Let’s briefly consider Python and PHP. Both are dynamic languages, let you use variables, an...
Static repository variables must have default initializers that are either numeric or character values. In addition, you can use Expression Builder to insert a constant as the default initializer, such as Date, Time, and TimeStamp. You cannot use any other value or expression as the default init...
While converting code from a Mobile OS MFC Application into a Win32 VS 2005 C++ MFC Application, I have had to make things use "Static" in many places just to get the code to compile and work. All appropriate initialization to use these "Static" variables have been done as I find th...