MindTree Automata Coding Section Question 2

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Ques. Remove all Vowels from a String using Pointers concept?

#include < stdio.h >

#include < stdlib.h >

#include < string.h >

#define TRUE 1

# define FALSE 0

int check_vowel(char);
main() {
char string[100], * temp, * pointer, ch, * start;
printf(“Enter a string\n”);
gets(string);
temp = string;
pointer = (char * ) malloc(100);
if (pointer == NULL) {
printf(“Unable to allocate memory.\n”);
exit(EXIT_FAILURE);
}
start = pointer;
while ( * temp) {
ch = * temp;
if (!check_vowel(ch)) { * pointer = ch;
pointer++;
}
temp++;
} * pointer = ‘\0’;
pointer = start;
strcpy(string, pointer); /* If you wish to convert original string */
free(pointer);
printf(“String after removing vowel is \”%s\”\n”, string);
return 0;
}
int check_vowel(char a) {
if (a >= ‘A’ && a <= ‘Z’) a = a + ‘a’ – ‘A’;
if (a == ‘a’ || a == ‘e’ || a == ‘i’ || a == ‘o’ || a == ‘u’) return TRUE;
return FALSE;