问为什么GCC警告我这条线是“误入歧途的缩进，好像它是被守卫的”？

EN

/home/dronz/OF/apps/myApps/HexMap/src/HexMap.cpp:48:5: warning:
this ‘if’ clause does not guard... [-Wmisleading-indentation]

     if (toHexSize < 1)
     ^~

/home/dronz/OF/apps/myApps/HexMap/src/HexMap.cpp:51:2: note: ...
this statement, but the latter is misleadingly indented as
if it were guarded by the ‘if’

  MapTileSizeAtZoom = toHexSize;
  ^~~~~~~~~~~~~~~~~

if (toHexSize < 1)
    toHexSize = 1;

MapTileSizeAtZoom = toHexSize;

if (toHexSize < 1)
    toHexSize = 1;

HexInfo centerOnHex;
if (SelectedHex.type != -1)

#include "HexMap.h"
#include <algorithm>
#include <cmath>

//--------------------------------------------------------------
HexMap::HexMap()
{}

//--------------------------------------------------------------
int HexMap::SetZoom(int toHexSize)
{
    if (toHexSize < 1)
        toHexSize = 1;

    HexInfo centerOnHex;
    if (SelectedHex.type != -1)
    {
        // Center map on the selected hex.
        centerOnHex = SelectedHex;
    }
    else
    {
        // Center map on current center of viewpoint.
        centerOnHex = GetHex(
            MapFrame.x + MapFrame.getWidth() / 2,
            MapFrame.y + MapFrame.getHeight() / 2 );
        if ((centerOnHex.x > WORLDMAPWIDTH) || (centerOnHex.x < 0))
            centerOnHex.x = WORLDMAPWIDTH / 2;
        if ((centerOnHex.y > WORLDMAPHEIGHT) || (centerOnHex.y < 0))
            centerOnHex.y = WORLDMAPHEIGHT / 2;
    }

    setHexDisplaySize(toHexSize);

    // Center map:
    HexOriginX = MapFrame.x + MapTileWidth  * 0.25f;
    HexOriginY = MapFrame.y + MapTileHeight * 0.5f;
    ViewPosOnWorld.set(
        centerOnHex.x - (MapFrame.getWidth() / 2) / MapTileWidth,
        centerOnHex.y - (MapFrame.getHeight() / 2) / MapTileHeight);

    return 0;
}

//--------------------------------------------------------------
void HexMap::setHexDisplaySize(int toHexSize)
{
    if (toHexSize < 1)
        toHexSize = 1;

    MapTileSizeAtZoom = toHexSize;
    MapTileWidth = MapTileSizeAtZoom * 1.5f; // hex x-spacing is 1.5 * r
    MapTileHeight = MapTileSizeAtZoom * 1.73205f; // hex height = sqrt(3*r)

    // Size images & hexmask:
    MaskWidth = MapTileHeight * 1.154700538;  // 1/(sqrt(3)/2)
}