how to devowel string in c program

To devowel a string in a C program, you can follow these steps:

Declare and initialize the string: Start by declaring and initializing a character array to hold the input string. For example, you can use the char data type and assign a string literal to it.
Create a function to devowel the string: Define a function that takes the input string as a parameter and removes the vowels from it. This function can be called devowelString or any other name you prefer.
Iterate over the string: Use a loop, such as a for loop, to iterate over each character in the input string.
Check if the character is a vowel: Inside the loop, use a conditional statement, such as an if statement, to check if the current character is a vowel. Vowels include 'a', 'e', 'i', 'o', and 'u' (both lowercase and uppercase).
Remove the vowel: If the current character is a vowel, you can simply skip it and move on to the next character. If the character is not a vowel, you can append it to a new string or overwrite the original string with the non-vowel characters.
Terminate the string: After removing the vowels, make sure to add a null character (\0) at the end of the resulting string to indicate its end.
Print or use the devoweled string: Finally, you can print the devoweled string or use it in further computations, depending on your specific requirements.

Here's an example implementation of the steps described above:

#include <stdio.h>

void devowelString(char* str) {
    int i, j;

    for (i = 0, j = 0; str[i] != '\0'; i++) {
        if (str[i] != 'a' && str[i] != 'e' && str[i] != 'i' && str[i] != 'o' && str[i] != 'u' &&
            str[i] != 'A' && str[i] != 'E' && str[i] != 'I' && str[i] != 'O' && str[i] != 'U') {
            str[j++] = str[i];
        }
    }

    str[j] = '\0';
}

int main() {
    char str[] = "Hello, World!";

    devowelString(str);

    printf("Devoweled string: %s\n", str);

    return 0;
}

This program takes the input string "Hello, World!" and removes all the vowels from it. The resulting devoweled string is then printed as output: "Hll, Wrld!".