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	01-sum.c - libzahl - big integer library
	git clone git://git.suckless.org/libzahl
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	---
	01-sum.c (475B)
	---
	1 /* Calculates the sum of $@ */
	2
	3 #include <stdio.h>
	4 #include <stdlib.h>
	5
	6 #include <zahl.h>
	7
	8 int
	9 main(int argc, char *argv[])
	10 {
	11 z_t sum, term;
	12 jmp_buf env;
	13 char *buf;
	14 int i;
	15
	16 if (setjmp(env))
	17 return zperror(argv[0]), 1;
	18
	19 zsetup(env);
	20 zinit(sum);
	21 zinit(term);
	22 zsetu(sum, 0);
	23
	24 for (i = 1; i < argc; i++) {
	25 zsets(term, argv[i]);
	26 zadd(sum, sum, term);
	27 }
	28
	29 printf("%s\n", buf = zstr(sum, NULL, 0));
	30 free(buf);
	31
	32 zfree(term);
	33 zfree(sum);
	34 zunsetup();
	35 return 0;
	36 }