21st-Century-Examples/keyval.c at master · lanner17/21st-Century-Examples · GitHub

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/* See compilation notes in dict_use.c*/
#include <stdlib.h> //malloc
#include <strings.h> //strcasecmp (from POSIX)
#include "keyval.h"

keyval *keyval_new(char *key, void *value){
    keyval *out = malloc(sizeof(keyval));
    *out = (keyval){.key = key, .value=value};
    return out;
}

/** Copy a key/value pair. The new pair has pointers to
  the values in the old pair, not copies of their data.  */
keyval *keyval_copy(keyval const *in){
    keyval *out = malloc(sizeof(keyval));
    *out = *in;
    return out;
}

void keyval_free(keyval *in){ free(in); }

int keyval_matches(keyval const *in, char const *key){
    return !strcasecmp(in->key, key);
}