The size of an int variable in c is a function of the compiler implementation. It is usually a word in the underlying computer architecture. Original Microsoft C/C++ compilers for the 16 bit platform defined an int as 2 bytes. Current compilers for the 32 bit platform define an int as 4 bytes. The current ANSI C standard provides that an int is at least 4 bytes, but it could be higher, say 8 bytes on a 64 bit platform.
It depends what you mean by size. The std::string::size() member function will tell you the length of a string in chars up to but not including the null-terminator, while std::string::capacity() will tell you the maximum number of characters (excluding the null-terminator) the string will accommodate before a resize occurs. However, size could also refer to the std::string object itself, and that can be obtained via sizeof (std::string).
Or perhaps you wish to know the total memory consumed by your variable? For a string, T, of type char, the total memory consumed should be sizeof (T) + T.capacity() + sizeof (char). However, many implementations make use of the short string optimisation (SSO) to store short strings inside the object itself rather than on the free store, but this optimisation is implementation defined (it is not defined by the standard). 16 characters (including the null-terminator) is not unusual for SSO, but it's by no means universal.
If memory consumption is a concern, the most reliable method of keeping track of consumption is to implement your own string class. If you need to monitor an existing class's consumption, you'll need to override the global operator new and provide your own memory manager (not for the feint of heart).
One byte.
the simple way can be explained by example as: let there be two integers as : int a=10,b=5; if we want to use third variable then let third variable be int c; and sorting is done as : c=a; a=b; b=c; if it is to be done by without using third variable then : a=a+b; b=a-b; a=a-b; at last the variable is sorted.
In C: int pass_mark; pass_mark = 45; In C++: int pass_mark {45};
same the types used in C. that is int...char...float...
The int is a data type in c, c++ or java, It can divided in to two parts that is short and long. Int short if of same size as int (2).
In C#: int[] list = new int[] { 1 , 2, 3, 4}; int highest = int.MinValue; foreach(int i in list) { if(i > highest) { highest = i; } } Console.WriteLine(highest.ToString() + " is the highest number");
int a; -- variable definition"int a" -- string literal
Not initialized variable: int myInt; Initialized variable: int myInt = 10;
The scope of a variable is the range, or area, in which a variable exists. // this c is global and can be referenced from anywhere int c = 1; void foo() { // this c is local to function foo and can't be referenced from the outside int c = 2; } void bar() { // if we try to reference c here, we get the value 1 from the global variable }
a variable having the datattype and name, an identifier is the name of the variable for example int x; here int x; is the variable x is the identifier
the simple way can be explained by example as: let there be two integers as : int a=10,b=5; if we want to use third variable then let third variable be int c; and sorting is done as : c=a; a=b; b=c; if it is to be done by without using third variable then : a=a+b; b=a-b; a=a-b; at last the variable is sorted.
In C, try this line: int intNumSold;
int* pint; // instantiate a pointer to an int. float* pflt; // instantiate a pointer to a float.
variable is must start with letter or ( _ ) under score ex : int a; means a is a variable we can store value on it
#include<iostream> int main() { int var=42; // store the value 42 in a variable named var. return(0); }
In C: int pass_mark; pass_mark = 45; In C++: int pass_mark {45};
sizeof (int) isn't changing, only depends on the platform -- but you may use fix types like int8_t, int16_t, int32_t, int64_t from inttypes.hsizeof (char) is always 1
same the types used in C. that is int...char...float...