fix: update main.c

Signed-off-by: Shabareesh Shetty <[email protected]>

Author: ShabiShett07

lib/node_modules/@stdlib/complex/float32/base/mul-add/src/main.c

@@ -45,6 +45,7 @@
 * float im = stdlib_complex64_imag( out );
 * // returns -9.0
 */
+stdlib_complex64_t stdlib_base_complex64_muladd( const stdlib_complex64_t alpha, const stdlib_complex64_t x, const stdlib_complex64_t y );
 stdlib_complex64_t stdlib_base_complex64_muladd( const stdlib_complex64_t alpha, const stdlib_complex64_t x, const stdlib_complex64_t y ) {
 	float re1;
 	float re2;