调试断言失败的映射/集合迭代器不可取消

Question

I have My Map std::map<const char*, int> uniforms; and when i try to find the data using uniforms.find(name)->second I get the error stated. I have checked the data stored in debug mode and it is all there correctly as I expected and i can access most of it using the find function but when I try and access directionalLight.base.color I get the error. Like I said they are spelled correctly and there in debug mode but I get the error. Is it the dots in the string?

Answer 1

You might be running past the end of map, so before dereferencing you should check if its valid

auto it = uniforms.find(name) ; // or std::map<const char*, int>::iterator it ;

if ( it != uniforms.end() )
{
   // Now use  it->second 
}