Answer Posted / sha

fopen("file1.txt","wb"); will open the file file1.txt in
binary read and write mode. Binary mode is useful to write
a file with 0s and 1s. For example, sometimes it would be
required to open a executable file. In that case, binary
mode is useful.
fopen("file1.txt","w"); will open the file1.txt in text
mode which means you can write regular letters and numbers
in that file.

Explain how do I determine whether a character is numeric, alphabetic, and so on?

1079

---

How can I generate floating-point random numbers?

1041

---

What are the 5 organizational structures?

970

---

How can type-insensitive macros be created?

1127

---

When should you use a type cast?

1057

---

#define f(g,h) g##h main O int i=0 int var=100 ; print f ("%d"f(var,10));} wat would be the output??

1911

---

How many types of operators are there in c?

984

---

Does c have class?

1051

---

Why dont c comments nest?

1000

---

What is the meaning of typedef struct in c?

1004

---

What is #line in c?

961

---

Is exit(status) truly equivalent to returning the same status from main?

1008

---

What are run-time errors?

1055

---

What’s a signal? Explain what do I use signals for?

1054

---

Write a C++ program to generate 10 integer numbers between - 1000 and 1000, then store the summation of the odd positive numbers in variable call it sum_pos, then find the maximum digit in this variable regardless of its digits length.

1947

---