Determine the minimum array data type for storing a provided signed integer value.
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> Determine the minimum array [data type][@stdlib/array/dtypes] for storing a provided signed integer value.
``bash`
npm install @stdlib/array-base-min-signed-integer-dtype
`javascript`
var minSignedIntegerDataType = require( '@stdlib/array-base-min-signed-integer-dtype' );
#### minSignedIntegerDataType( value )
Returns the minimum array [data type][@stdlib/array/dtypes] for storing a provided signed integer value.
`javascript
var dt = minSignedIntegerDataType( 9999 );
// returns 'int16'
dt = minSignedIntegerDataType( -3 );
// returns 'int8'
dt = minSignedIntegerDataType( 3 );
// returns 'int8'
dt = minSignedIntegerDataType( 1e100 );
// returns 'float64'
`
- Once a provided integer value exceeds the maximum values of all supported signed integer [data types][@stdlib/array/dtypes], the function defaults to returning 'float64'.
`javascript
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var exp2 = require( '@stdlib/math-base-special-exp2' );
var minSignedIntegerDataType = require( '@stdlib/array-base-min-signed-integer-dtype' );
// Generate random powers:
var exp = discreteUniform( 100, 0, 40, {
'dtype': 'generic'
});
// Determine the minimum data type for each generated value...
var v;
var i;
for ( i = 0; i < exp.length; i++ ) {
v = exp2( exp[ i ] );
console.log( 'min(%d) => %s', v, minSignedIntegerDataType( v ) );
}
`
*
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---
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