Question

How to right trim a string in C

Answer 1

#include <stdio.h>
#include <string.h>
  
void rtrim(char *s) {
    char spaces[] = "\n\t\v\f ";
    int len = strlen(s) - 1;
    while (len >= 0 && strchr(spaces, s[len]) != NULL) {
        s[len] = '\0';
        len--;
    }
}
      
int main() {
    char s[50] = "    c python c++ java php   ";
    
   printf("'%s'\n", s);
    
    printf("%i\n", strlen(s));
    rtrim(s);
    printf("%i\n", strlen(s));
     
    printf("'%s'\n", s);
     
    return 0;
}
      
     
     
      
/*
run:
       
'    c python c++ java php   '
28
25
'    c python c++ java php'
     
*/
  

 

70+ SQL courses for beginners and professionals