Question

How to remove specific characters from a string in C

Answer 1

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

void remove_specific_characters_from_string(char str[], char charsToRemove[]) {
    int length = strlen(charsToRemove);

    for (int i = 0; i < length; i++) {
        char* pos = strchr(str, charsToRemove[i]);
        while (pos != NULL && pos != "") {
            memmove(pos, pos + 1, strlen(pos));
            pos = strchr(str, charsToRemove[i]);
        }
    }
}

int main() {
    char phone[] = "(555) 555-5555";
    char charsToRemove[] = "()-";

    remove_specific_characters_from_string(phone, charsToRemove);

    printf("%s\n", phone);

    return 0;
}



/*
run:

555 5555555

*/

 

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