site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com #include <limits> #include <cmath> #include <iostream> using namespace std; int main (int argc, char** argv) { double inf1 = numeric_limits<double>::infinity(); cout << "Infinity: " << inf1 << endl; /* double inf2 = INFINITY; cout << "Infinity: " << inf2 << endl; if (inf1 == inf2) cout << "They're equal." << endl; */ return 0; } -matt On Aug 3, 2005, at 11:59 AM, Jasmin Lapalme wrote: using namespace std; void test_inf(double &x) { x = INFINITY; } int main() { double x; test_inf(x); cout << x << endl; } =========== Thanks Jasmin This email sent to mhoffman@cs.washington.edu _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... You could instead use <limits> and the numeric_limits class. Just a quick example: Un-comment the code involving INFINITY, and it won't compile with - pedantic, but you'll see that they're equivalent. The above code, will however compile with -pedantic. I think this is the better way to do it as well, but that could just be me. Hi, I have curious bug with gcc and the option -pedantic. I want to use the value INFINITY defined in math.h. Here is a sample code : ==== test.cpp ==== #include <cmath> #include <iostream> This code compiles well without the option -pedantic but I want to use the option -pedantic. I want to be sure my code will compile on any platform with gcc. I know that INFINITY is equal to 1e50f and 1e50f is greater than FLT_MAX. The option -pedantic raise this error : floating constant exceeds range of 'float'. Why I cannot use INFINITY with the option -pedantic? _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/mhoffman% 40cs.washington.edu This email sent to site_archiver@lists.apple.com