feat: add support for 16-bit data types

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/dtype-char/include/stdlib/ndarray/base/dtype_char.h

@@ -55,6 +55,7 @@ enum STDLIB_NDARRAY_DTYPE_CHAR {
 	STDLIB_NDARRAY_FLOAT64_CHAR = 'd',       // *d*ouble
 	STDLIB_NDARRAY_FLOAT128_CHAR = 'g',
 
+	STDLIB_NDARRAY_COMPLEX32_CHAR = 'j',
 	STDLIB_NDARRAY_COMPLEX64_CHAR = 'c',     // *c*omplex (BLAS convention)
 	STDLIB_NDARRAY_COMPLEX128_CHAR = 'z',    // *z* (BLAS convention)
 

lib/node_modules/@stdlib/ndarray/base/dtype-char/lib/table.js

@@ -32,6 +32,7 @@ function table() {
 
 		'bool': 'x',
 
+		'complex32': 'j',
 		'complex64': 'c',
 		'complex128': 'z',
 

lib/node_modules/@stdlib/ndarray/base/dtype-char/lib/types.txt

@@ -7,7 +7,7 @@ f: float32
 g: float128
 h: float16
 i: int32
-j:
+j: complex32 (16-bit)
 k: int16
 l: int64
 m: int128

lib/node_modules/@stdlib/ndarray/base/dtype-char/src/main.c

@@ -44,6 +44,8 @@ uint8_t stdlib_ndarray_dtype_char( enum STDLIB_NDARRAY_DTYPE dtype ) {
 		return STDLIB_NDARRAY_FLOAT64_CHAR;
 	case STDLIB_NDARRAY_FLOAT32:
 		return STDLIB_NDARRAY_FLOAT32_CHAR;
+	case STDLIB_NDARRAY_FLOAT16:
+		return STDLIB_NDARRAY_FLOAT16_CHAR;
 
 	case STDLIB_NDARRAY_INT8:
 		return STDLIB_NDARRAY_INT8_CHAR;
@@ -73,6 +75,8 @@ uint8_t stdlib_ndarray_dtype_char( enum STDLIB_NDARRAY_DTYPE dtype ) {
 	case STDLIB_NDARRAY_BINARY:
 		return STDLIB_NDARRAY_BINARY_CHAR;
 
+	case STDLIB_NDARRAY_COMPLEX32:
+		return STDLIB_NDARRAY_COMPLEX32_CHAR;
 	case STDLIB_NDARRAY_COMPLEX64:
 		return STDLIB_NDARRAY_COMPLEX64_CHAR;
 	case STDLIB_NDARRAY_COMPLEX128:

lib/node_modules/@stdlib/ndarray/base/dtype-char/test/test.js

@@ -29,6 +29,7 @@ var dtypeChar = require( './../lib' );
 var DTYPES = [
 	'float64',
 	'float32',
+	'float16',
 	'int8',
 	'uint8',
 	'uint8c',
@@ -40,6 +41,7 @@ var DTYPES = [
 	'uint64',
 	'binary',
 	'generic',
+	'complex32',
 	'complex64',
 	'complex128',
 	'bool'
@@ -63,6 +65,7 @@ tape( 'the function returns an object mapping data type strings to single letter
 	expected = [
 		'd',
 		'f',
+		'h',
 		's',
 		'b',
 		'a',
@@ -74,6 +77,7 @@ tape( 'the function returns an object mapping data type strings to single letter
 		'v',
 		'r',
 		'o',
+		'j',
 		'c',
 		'z',
 		'x'
@@ -95,6 +99,7 @@ tape( 'the function returns the single letter character abbreviation for an unde
 	expected = [
 		'd',
 		'f',
+		'h',
 		's',
 		'b',
 		'a',
@@ -106,6 +111,7 @@ tape( 'the function returns the single letter character abbreviation for an unde
 		'v',
 		'r',
 		'o',
+		'j',
 		'c',
 		'z',
 		'x'