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added capability to dump some binary data (easier diagnosis on new processors)

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[SVN r9718]
This commit is contained in:
John Maddock
2001-04-05 11:30:49 +00:00
parent 1a2cff6d14
commit 76d01f8824
1 changed files with 22 additions and 2 deletions
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24
limits_test.cpp
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@ -14,6 +14,7 @@
*/
#include <boost/limits.hpp>
#include <math.h>
#include <cassert>
#include <iostream>
@ -44,6 +45,20 @@ void test_integral_limits(const T &, const char * msg)
std::cout << "min: " << lim::min() << ", max: " << lim::max() << '\n';
}
template <class T>
void print_hex_val(T t, const char* name)
{
const unsigned char* p = (const unsigned char*)&t;
std::cout << "hex value of " << name << " is: ";
for (int i = 0; i < sizeof(T); ++i)
{
if(p[i] <= 0xF)
std::cout << "0";
std:: cout << std::hex << (int)p[i];
}
std::cout << endl;
}
template<class T>
void test_float_limits(const T &, const char * msg)
{
@ -74,10 +89,14 @@ void test_float_limits(const T &, const char * msg)
<< ", exact: " << lim::is_exact << '\n'
<< "min: " << lim::min() << ", max: " << lim::max() << '\n'
<< "infinity: " << infinity << ", QNaN: " << qnan << '\n';
print_hex_val(lim::max(), "max");
print_hex_val(infinity, "infinity");
print_hex_val(qnan, "qnan");
print_hex_val(snan, "snan");
// infinity is beyond the representable range
assert(lim::max() > 1000);
assert(infinity > lim::max());
assert(-infinity < -lim::max());
assert(lim::infinity() > lim::max());
assert(-lim::infinity() < -lim::max());
assert(lim::min() < 0.001);
assert(lim::min() > 0);
@ -124,3 +143,4 @@ int main()
// warning here if "return 0;" is omitted.
return 0;
}