Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
Articles by Bhanu Priya
Page 9 of 106
What is pass by value in C language?
Pass by value is termed as the values which are sent as arguments in C programming language.AlgorithmAn algorithm is given below to explain the working of pass by value in C language.START Step 1: Declare a function that to be called. Step 2: Declare variables. Step 3: Enter two variables a, b at runtime. Step 4: calling function jump to step 6. Step 5: Print the result values a, b. Step 6: Called function swap. i. Declare temp variable ii. Temp=a iii. a=b iv. b=temp STOPExampleGiven below is the C program to swap the two numbers ...
Read MoreWhat is the common error occurred while using scanf() statement in C language?
ProblemCommon error occurred while reading string and numeric data using scanf() function in C languageSolutionThe scanf() function is used to read formatted input from stdin in C language. It returns the whole number of characters written in it otherwise, returns a negative value.Generally in case of scanf() function while reading string values after integer from the user, we get frequent errors.ExampleFollowing is a C program which reads roll number (integer value) and name of a student −#include struct student { char name[10]; int roll; } s; int main(){ printf("Enter information of students:"); printf("Enter roll number: ...
Read MoreWhy is the compiler not reading string after integer in C programming?
ProblemCompiler not reading the string after integer in C programming? How can we solve this problem?SolutionWhen you enter an integer number and press enter to read next value, compiler stores null into the string’s first char and string input terminates. Because scanf will terminate whenever it reads a null character.How to Solve It?When we are trying to read string or character after int or float, we should read a temporary char which is present in the input buffer.The following is the program without errors −Example#include struct student{ char name[10]; int roll; char temp; } s; int ...
Read MoreExplain Compile time and Run time initialization in C programming?
Let’s take the concept of arrays to about compile time and run time initialization −ArrayArray is a collection of items stored at contiguous memory locations and elements can access by using indices.Compile time array initializationIn compile time initialization, user has to enter the details in the program itself.Compile time initialization is same as variable initialization. The general form of initialization of array is as follows −Syntaxtype name[size] = { list_of_values }; //integer array initialization int rollnumbers[4]={ 2, 5, 6, 7}; //float array initialization float area[5]={ 23.4, 6.8, 5.5, 7.3, 2.4 }; //character array initialization char name[9]={ 'T', 'u', 't', 'o', ...
Read MoreHow to print the numbers in different formats using C program?
ProblemWhat is the logic in C language to print the numbers in different formats like pyramid, right angle triangle?SolutionTo print the numbers or symbols in different model we can take the help of for loop in the code.Example1Following is the C program to print pyramid −#include int main(){ int n; printf("Enter number of lines: "); scanf("%d", &n); printf(""); // loop for line number of lines for(int i = 1; i
Read MoreWhat is strncat() Function in C language?
The C library function char *strncat(char *dest, const char *src, size_t n) appends the string pointed to by src to the end of the string pointed to by dest up to n characters long.An array of characters is called a string.DeclarationFollowing is the declaration for an array −char stringname [size];For example: char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The strncat( ) functionThis is used for combining ...
Read MoreWhat is strncmp() Function in C language?
The C library function int strncmp(const char *str1, const char *str2, size_t n) compares at most the first n bytes of str1 and str2.An array of characters is called a string.DeclarationThe syntax for declaring an array is as follows −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.The strncmp ( ) FunctionThis function is used for comparing first ‘n’ characters of 2 ...
Read MoreC program demonstrating the concepts of strings using Pointers
An array of characters is called a string.DeclarationThe syntax for declaring an array is as follows −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.Now, let us understand what are the arrays of pointers in C programming language.Arrays of pointers: (to strings)It is an array whose elements are ptrs to the base add of the string.It is declared and initialized as follows ...
Read MoreExplain the concept of an array within a structure in C programming
An array of structure in C programming is a collection of different datatype variables, grouped together under a single name.General form of structure declarationThe structural declaration is as follows −struct tagname{ datatype member1; datatype member2; datatype member n; };Here, struct is the keyword.tagname specifies the name of structure.member1, member2 specifies the data items that make up structure.ExampleThe following example shows the usage of array within a structure in C programming −struct book{ int pages; char author [30]; float price; };ExampleFollowing is the C program to demonstrate the use of an array within a structure ...
Read MoreExplain the dynamic memory allocation of pointer to structure in C language
Pointer to structure holds the add of the entire structure.It is used to create complex data structures such as linked lists, trees, graphs and so on.The members of the structure can be accessed using a special operator called as an arrow operator ( -> ).DeclarationFollowing is the declaration for pointers to structures in C programming −struct tagname *ptr;For example: struct student *s;AccessingIt is explained below how to access the pointers to structures.Ptr-> membername;For example − s->sno, s->sname, s->marks;ExampleFollowing is a C program that explains the dynamic memory allocation of structure in C programming −#include #include struct person { ...
Read More