Is there any macro in C or C++ represent the max and min value of int32_t and int64_t? I know it can be literally defined by oneself, but it's better if there is a standard macro. Please note I'm not asking about max of int, long ,etc. but intXX_t
In C++, there is std::numeric_limits::min()
and std::numeric_limits::max()
in the <limits>
header:
std::cout << std::numeric_limits<std::int32_t>::min() << std::endl;
and so on. In C, the header <stdint.h>
defines INT32_MIN
, INT32_MAX
etc. These are also available in the C++ <cstdint>
header.
In C++ you can use header <limits>
and class std::numeric_limts
declared in this header.
To know the max and min values of types int32_t and int64_t you can write for example
#include <cstdint>
#include <limits>
//...
std::cout << std::numeric_limits<int32_t>::max() << std::endl;
std::cout << std::numeric_limits<int32_t>::min() << std::endl;
std::cout << std::numeric_limits<int64_t>::max() << std::endl;
std::cout << std::numeric_limits<int64_t>::min() << std::endl;
In C you should include header <stdint.h>
and use corresponding macros defined in the header as for example
INT32_MIN
INT32_MAX
INT64_MIN
INT64_MAX
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