将具有多个单词的字符串转换为char数组

Question

Imagine I have the following string:

char input[] = "this is an example";

I want to take this string and make each word an entry in an array, how could I get this into an array like this:

char inputArray[] = {"this","is","an","example"};

Answer 1

Either you do not know exactly what you want or you want the following:)

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

int main(void) 
{
    char input[] = "this is an example";

    size_t n = 0;

    for ( char *p = input; *p;  )
    {
        while ( isspace( ( unsigned char )*p ) ) ++p;

        if ( *p )
        {
            ++n;
            while ( *p && !isspace( ( unsigned char )*p ) ) ++p;
        }
    }

    char * inputArray[n];

    size_t i = 0;
    for ( char *p = strtok( input, " \t" ); p != NULL; p = strtok( NULL, " \t" ) ) inputArray[i++] = p;

    for ( i = 0; i < n; i++ ) puts( inputArray[i] );

    return 0;
}

The program output is

this
is
an
example