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/trunk/Examples/ruby/multimap/example.c

#
C | 53 lines | 46 code | 5 blank | 2 comment | 9 complexity | 59eadaf2f9ab96233bcc88e986e6c269 MD5 | raw file
 1/* File : example.c */
 2#include <stdio.h>
 3#include <stdlib.h>
 4#include <ctype.h>
 5
 6/* Compute the greatest common divisor of positive integers */
 7int gcd(int x, int y) {
 8  int g;
 9  g = y;
10  while (x > 0) {
11    g = x;
12    x = y % x;
13    y = g;
14  }
15  return g;
16}
17
18int gcdmain(int argc, char *argv[]) {
19  int x,y;
20  if (argc != 3) {
21    printf("usage: gcd x y\n");
22    return -1;
23  }
24  x = atoi(argv[1]);
25  y = atoi(argv[2]);
26  printf("gcd(%d,%d) = %d\n", x,y,gcd(x,y));
27  return 0;
28}
29
30int count(char *bytes, int len, char c) {
31  int i;
32  int count = 0;
33  for (i = 0; i < len; i++) {
34    if (bytes[i] == c) count++;
35  }
36  return count;
37}
38
39void capitalize(char *str, int len) {
40  int i;
41  for (i = 0; i < len; i++) {
42    str[i] = (char)toupper(str[i]);
43  }
44}
45
46void circle(double x, double y) {
47  double a = x*x + y*y;
48  if (a > 1.0) {
49    printf("Bad points %g, %g\n", x,y);
50  } else {
51    printf("Good points %g, %g\n", x,y);
52  }
53}