usynth

simple midi synth for sndio
git clone git://git.nsmpr.xyz/usynth.git
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util.c (388B)

      1 #include <stdlib.h>
      2 
      3 #include "util.h"
      4 
      5 Array *
      6 newarray(size_t s)
      7 {
      8 	Array *a;
      9 	a = malloc(sizeof(Array));
     10 	*a = (Array){NULL, s, 0};
     11 	return a;
     12 }
     13 
     14 void
     15 freearray(Array *a)
     16 {
     17 	free(a->p);
     18 	a->p = NULL;
     19 	free(a);
     20 }
     21 
     22 void *
     23 arrayinc(Array *v)
     24 {
     25 	v->n++;
     26 	v->p = realloc(v->p, v->n * v->s);
     27 	return v->p + (v->n - 1) * v->s;
     28 }
     29 
     30 void *
     31 arrayget(Array *v, int n)
     32 {
     33 	return v->p + n * v->s;
     34 }