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kit
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12_stdlib_convert.c (391B)

      1 /* stdlib.h numeric conversion + abs. */
      2 
      3 #include <stdio.h>
      4 #include <stdlib.h>
      5 
      6 int main(void) {
      7   if (atoi("42") != 42) return 1;
      8   if (atoi("-7") != -7) return 2;
      9   if (strtol("0xcafe", NULL, 16) != 0xcafe) return 3;
     10   if (strtol("777", NULL, 8) != 511) return 4;
     11   if (abs(-13) != 13) return 5;
     12   if (labs(-1234567890L) != 1234567890L) return 6;
     13 
     14   printf("stdlib ok\n");
     15   return 0;
     16 }