constexpr bool is_number_integer() const noexcept;
This function returns #!cpp true
if and only if the JSON value is a signed or unsigned integer number. This excludes floating-point values.
#!cpp true
if type is an integer or unsigned integer number, #!cpp false
otherwise.
No-throw guarantee: this member function never throws exceptions.
Constant.
??? example
The following code exemplifies `is_number_integer()` for all JSON types. ```cpp --8<-- "examples/is_number_integer.cpp" ``` Output: ```json --8<-- "examples/is_number_integer.output" ```
#!cpp true
for unsigned integers in 2.0.0.