Fix Cppia II

Author: flashultra

std/haxe/math/bigint/MutableBigInt_.hx

@@ -48,10 +48,10 @@ class MutableBigInt_ extends BigInt_ {
 		Set the value of this big int with an integer of value `value`.
 	**/
 	public function setFromInt(value:Int):Void {
+		ensureCapacity(1, false);
 		#if cppia
 		if ( m_data == null) return;
 		#end
-		ensureCapacity(1, false);
 		m_data.set(0, value);
 		m_count = 1;
 	}
@@ -79,9 +79,6 @@ class MutableBigInt_ extends BigInt_ {
 		if ((value == null) || (value.length < 1)) {
 			throw new BigIntException(BigIntError.INVALID_ARGUMENT);
 		}
-		#if cppia
-		if ( m_data == null) return;
-		#end
 		var negate = value.charCodeAt(0) == 0x2d;
 		var index = negate ? 1 : 0;
 		if (value.length <= index) {
@@ -142,6 +139,9 @@ class MutableBigInt_ extends BigInt_ {
 		}
 		var neg = value.get(length - 1) >>> 31;
 		ensureCapacity(length + neg, false);
+		#if cppia
+		if ( m_data == null) return;
+		#end
 		m_data.set(length + neg - 1, 0);
 		MultiwordArithmetic.copy(m_data, value, length);
 		m_count = length + neg;