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1 /* | |
2 * example.c | |
3 * | |
4 * Calculate the sum of a given range of integer numbers. The range is | |
5 * specified by providing two integer numbers as command line argument. | |
6 * If no arguments are specified, assume the predefined range [0..9]. | |
7 * Abort with an error message if the resulting number is too big to be | |
8 * stored as int variable. | |
9 * | |
10 * This program example is similar to the one found in the GCOV documentation. | |
11 * It is used to demonstrate the HTML output generated by LCOV. | |
12 * | |
13 * The program is split into 3 modules to better demonstrate the 'directory | |
14 * overview' function. There are also a lot of bloated comments inserted to | |
15 * artificially increase the source code size so that the 'source code | |
16 * overview' function makes at least a minimum of sense. | |
17 * | |
18 */ | |
19 | |
20 #include <stdio.h> | |
21 #include <stdlib.h> | |
22 #include "iterate.h" | |
23 #include "gauss.h" | |
24 | |
25 static int start = 0; | |
26 static int end = 9; | |
27 | |
28 | |
29 int main (int argc, char* argv[]) | |
30 { | |
31 int total1, total2; | |
32 | |
33 /* Accept a pair of numbers as command line arguments. */ | |
34 | |
35 if (argc == 3) | |
36 { | |
37 start = atoi(argv[1]); | |
38 end = atoi(argv[2]); | |
39 } | |
40 | |
41 | |
42 /* Use both methods to calculate the result. */ | |
43 | |
44 total1 = iterate_get_sum (start, end); | |
45 total2 = gauss_get_sum (start, end); | |
46 | |
47 | |
48 /* Make sure both results are the same. */ | |
49 | |
50 if (total1 != total2) | |
51 { | |
52 printf ("Failure (%d != %d)!\n", total1, total2); | |
53 } | |
54 else | |
55 { | |
56 printf ("Success, sum[%d..%d] = %d\n", start, end, total1); | |
57 } | |
58 | |
59 return 0; | |
60 } | |
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