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gunjjoshigunjjoshi
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feat: add F_I macro to math/base/napi/unary
PR-URL: stdlib-js#2768 Reviewed-by: Athan Reines <kgryte@gmail.com>
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‎lib/node_modules/@stdlib/math/base/napi/unary/README.md‎

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@@ -422,6 +422,46 @@ The function accepts the following arguments:
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void stdlib_math_base_napi_i_i( napi_env env, napi_callback_info info, double (*fcn)( int32_t ) );
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```
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#### stdlib_math_base_napi_f_i( env, info, fcn )
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Invokes a unary function accepting a single-precision floating-point number and returning a signed 32-bit integer.
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```c
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#include <node_api.h>
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#include <stdint.h>
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// ...
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static int32_t fcn( const float x ) {
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// ...
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}
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// ...
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/**
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* Receives JavaScript callback invocation data.
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*
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* @param env environment under which the function is invoked
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* @param info callback data
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* @return Node-API value
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*/
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napi_value addon( napi_env env, napi_callback_info info ) {
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return stdlib_math_base_napi_f_i( env, info, fcn );
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}
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// ...
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```
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The function accepts the following arguments:
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- **env**: `[in] napi_env` environment under which the function is invoked.
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- **info**: `[in] napi_callback_info` callback data.
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- **fcn**: `[in] int32_t (*fcn)( float )` unary function.
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```c
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void stdlib_math_base_napi_f_i( napi_env env, napi_callback_info info, int32_t (*fcn)( float ) );
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```
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#### STDLIB_MATH_BASE_NAPI_MODULE_D_D( fcn )
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Macro for registering a Node-API module exporting an interface for invoking a unary function accepting and returning double-precision floating-point numbers.
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When used, this macro should be used **instead of** `NAPI_MODULE`. The macro includes `NAPI_MODULE`, thus ensuring Node-API module registration.
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#### STDLIB_MATH_BASE_NAPI_MODULE_F_I( fcn )
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Macro for registering a Node-API module exporting an interface for invoking a unary function accepting a single-precision floating-point number and returning a signed 32-bit integer.
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```c
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#include <stdint.h>
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static int32_t fcn( const float x ) {
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// ...
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}
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// ...
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// Register a Node-API module:
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STDLIB_MATH_BASE_NAPI_MODULE_F_I( fcn );
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```
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The macro expects the following arguments:
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- **fcn**: `int32_t (*fcn)( float )` unary function.
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When used, this macro should be used **instead of** `NAPI_MODULE`. The macro includes `NAPI_MODULE`, thus ensuring Node-API module registration.
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</section>
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<!-- /.usage -->

‎lib/node_modules/@stdlib/math/base/napi/unary/include/stdlib/math/base/napi/unary.h‎

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}; \
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NAPI_MODULE( NODE_GYP_MODULE_NAME, stdlib_math_base_napi_i_d_init )
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/**
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* Macro for registering a Node-API module exporting an interface invoking a unary function accepting a single-precision floating-point number and returning a signed 32-bit integer.
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*
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* @param fcn unary function
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*
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* @example
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* #include <stdint.h>
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*
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* static int32_t fcn( const float x ) {
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* // ...
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* }
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*
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* // ...
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*
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* // Register a Node-API module:
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* STDLIB_MATH_BASE_NAPI_MODULE_F_I( fcn );
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*/
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#define STDLIB_MATH_BASE_NAPI_MODULE_F_I( fcn ) \
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static napi_value stdlib_math_base_napi_f_i_wrapper( \
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napi_env env, \
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napi_callback_info info \
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) { \
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return stdlib_math_base_napi_f_i( env, info, fcn ); \
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}; \
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static napi_value stdlib_math_base_napi_f_i_init( \
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napi_env env, \
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napi_value exports \
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) { \
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napi_value fcn; \
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napi_status status = napi_create_function( \
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env, \
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"exports", \
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NAPI_AUTO_LENGTH, \
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stdlib_math_base_napi_f_i_wrapper, \
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NULL, \
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&fcn \
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); \
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assert( status == napi_ok ); \
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return fcn; \
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}; \
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NAPI_MODULE( NODE_GYP_MODULE_NAME, stdlib_math_base_napi_f_i_init )
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/*
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* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
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*/
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*/
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napi_value stdlib_math_base_napi_i_d( napi_env env, napi_callback_info info, double (*fcn)( int32_t ) );
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/**
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* Invokes a unary function accepting a single-precision floating-point number and returning a signed 32-bit integer.
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*/
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napi_value stdlib_math_base_napi_f_i( napi_env env, napi_callback_info info, int32_t (*fcn)( float ) );
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#ifdef __cplusplus
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}
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#endif

‎lib/node_modules/@stdlib/math/base/napi/unary/src/main.c‎

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return v;
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}
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/**
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* Invokes a unary function accepting a single-precision floating-point number and returning a signed 32-bit integer.
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*
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* ## Notes
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*
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* - This function expects that the callback `info` argument provides access to the following JavaScript arguments:
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*
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* - `x`: input value.
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*
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* @param env environment under which the function is invoked
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* @param info callback data
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* @param fcn unary function
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* @return function return value as a Node-API signed 32-bit integer
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*/
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napi_value stdlib_math_base_napi_f_i( napi_env env, napi_callback_info info, int32_t (*fcn)( float ) ) {
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napi_status status;
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size_t argc = 1;
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napi_value argv[ 1 ];
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status = napi_get_cb_info( env, info, &argc, argv, NULL, NULL );
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assert( status == napi_ok );
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if ( argc < 1 ) {
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status = napi_throw_error( env, NULL, "invalid invocation. Must provide a number." );
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assert( status == napi_ok );
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return NULL;
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}
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napi_valuetype vtype0;
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status = napi_typeof( env, argv[ 0 ], &vtype0 );
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assert( status == napi_ok );
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if ( vtype0 != napi_number ) {
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status = napi_throw_type_error( env, NULL, "invalid argument. Must provide a number." );
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assert( status == napi_ok );
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return NULL;
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}
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double x;
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status = napi_get_value_double( env, argv[ 0 ], &x );
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assert( status == napi_ok );
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napi_value v;
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status = napi_create_int32( env, (int32_t)fcn( (float)x ), &v );
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assert( status == napi_ok );
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return v;
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}

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