#include <metal_stdlib>

using namespace metal;
struct main_out {
  float4 x_GLF_color_1;
};
struct tint_symbol_1 {
  float4 x_GLF_color_1 [[color(0)]];
};

void main_1(thread float4* const tint_symbol_4) {
  bool b = false;
  int i = 0;
  float a = 0.0f;
  b = false;
  i = 1;
  while (true) {
    int const x_7 = i;
    if ((x_7 > 0)) {
    } else {
      break;
    }
    int const x_8 = i;
    a = (1.0f + float(x_8));
    float const x_39 = a;
    if (((2.0f - x_39) == 0.0f)) {
      b = true;
    }
    {
      int const x_9 = i;
      i = as_type<int>((as_type<uint>(x_9) - as_type<uint>(1)));
    }
  }
  bool const x_44 = b;
  if (x_44) {
    *(tint_symbol_4) = float4(1.0f, 0.0f, 0.0f, 1.0f);
  } else {
    *(tint_symbol_4) = float4(0.0f, 0.0f, 0.0f, 0.0f);
  }
  return;
}

fragment tint_symbol_1 tint_symbol() {
  thread float4 tint_symbol_5 = 0.0f;
  main_1(&(tint_symbol_5));
  main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_5};
  tint_symbol_1 const tint_symbol_3 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
  return tint_symbol_3;
}

