Answer Posted / ravi kumar martha

1. C is a general programming language. C++ is an Object
Oriented variant of C.

2.C++ was based on C and retains a great deal of the
functionality.
C++ does not retain complete source-level compatability
with C.

3.
In C, there's only one major memory allocation function:
malloc. You use it to allocate both single elements and
arrays and you always release the memory in the same way.

In C++, however, memory allocation for arrays is somewhat
different than for single objects.


you use the new[] operator, and you must match calls to new
[] with calls to delete[] (rather than to delete).

4.Although most good C code will follow this convention, in
C++ it is strictly enforced that all functions must be
declared before they are used. This code is valid C, but it
is not valid C++.

5.You have to include the struct keyword before the name of
the struct type to declare a struct: In C++, you could do
this, and have a new instance of a_struct called
struct_instance. In C, however, we have to include the
struct keyword when declaring struct_instance

6.you must include the keyword enum; in C++, you don't have
to. As a side note, most C programmers get around this
issue by using typedefs.

7.C++ has a much larger library than C, and some things may
be automatically linked in by C++ when they are not with C.
For instance, if you're used to using g++ for math-heavy
computations, then it may come as a shock that when you are
using gcc to compile C, you need to explicitly include the
math library for things like sin or even sqrt.

8.C does not provide a native boolean type. You can
simulate it using an enum, though.

9.In C++, you are free to leave off the statement 'return
0;' at the end of main; it will be provided automatically.

Why do we use oops?

1015

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What is destructor example?

1044

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What do you mean by variable?

1038

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what type of question are asked in thoughtworks pair programming round ?

2215

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Where is pseudocode used?

1103

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Why is polymorphism used?

1039

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hi, this is raju,iam studying b.tech 2nd year,iam want know about group1 and group2 details, and we can studying without going to any instutions? please help me.

1954

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What is overriding in oops?

1104

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#include #include #include #include void insert(char *items, int count); int main(void) { char s[255]; printf("Enter a string:"); gets(s); insert(s, strlen(s)); printf("The sorted string is: %s.\n", s); getch(); return 0; } void insert(char *items, int count) { register int a, b; char t; for(a=1; a < count; ++a) { t = items[a]; for(b=a-1; (b >= 0) && (t < items[b]); b--) items[b+1] = items[b]; items[b+1] = t; } } design an algorithm for Insertion Sort

2625

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Can we override main method?

1201

---

What is difference between inheritance and polymorphism?

1028

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What is polymorphism and example?

1047

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What is encapsulation in oop?

1052

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Why do we use class in oops?

966

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What is the point of oop?

1189

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