C program to Remove Spaces Blanks from a string

By | 10.11.2016

Remove Spaces Blanks from a string

Write a C program to Remove Spaces Blanks from a string. Here’s simple C program to Remove Spaces Blanks from a string in C Programming Language.

C – Strings : 

Strings are actually one-dimensional array of characters terminated by a null character ‘\0’. Thus a null-terminated string contains the characters that comprise the string followed by a null.

String is a sequence of characters. char data type is used to represent one single character in C. So if you want to use a string in your program then you can use an array of characters.

The declaration and definition of the string using an array of chars is similar to declaration and definition of an array of any other data type.

Any string ends with a terminating null character ‘\0’. An array definition in such a way should include null character ‘\0’ as the last element.

Here is source code of the C program to Remove Spaces Blanks from a string. The C++ program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.


/*  C program to Remove Spaces Blanks from a string  */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_SIZE 100 //Maximum size of the string

/* Function declaration */
char * removeBlanks(const char * string);

int main()
    char string[MAX_SIZE];
    char * newString;

    printf("Enter any string: ");

    printf("\nString before removing blanks: \"%s\"\n", string);

    newString = removeBlanks(string);

    printf("\nString after removing blanks: \"%s\"\n", newString);

    return 0;

 * Removes extra blank spaces from the given string
 * and returns the new string with single blank spaces
char * removeBlanks(const char * string)
    int i, j;
    char * newString;

    newString = (char *)malloc(strlen(string) + 1);

    i = 0;
    j = 0;

    while(string[i] != '\0')
        /* If blank space is found */
        if(string[i] == ' ')
            newString[j] = ' ';

            /* Skip all further spaces */
            while(string[i] == ' ')

        newString[j] = string[i];

    //Make sure that the string is NULL terminated
    newString[j] = '\0';

    return newString;


/*  C program to Remove Spaces Blanks from a string  */

Enter any string: This is     a     test   Program.

String before removing blanks: "This is     a     test   Program."

String after removing blanks: "This is a test Program."

Process returned 0

Above is the source code for C program to Remove Spaces Blanks from a string which is successfully compiled and run on Windows System.The Output of the program is shown above .

If you found any error or any queries related to the above program or any questions or reviews , you wanna to ask from us ,you may Contact Us through our contact Page or you can also comment below in the comment section.We will try our best to reach up to you in short interval.

Thanks for reading the post….

0 0 votes
Article Rating
Category: C Programming String Programs Tags:

About Tunde A

My name is Tunde Ajetomobi, a Tech Enthusiast and Growth Hacker. I enjoy creating helpful content that solves problem across different topics. Codezclub is my way of helping young aspiring programmers and students to hone their skills and find solutions on fundamental programming languages.

Notify of

Inline Feedbacks
View all comments