Vector Is Not A Template

Vector Is Not A Template C Containers library std vector 1 std vector is a sequence container that encapsulates dynamic size arrays 2 std pmr vector is an alias template that uses a polymorphic allocator

Solution 1 Specify the Namespace To fix the error you need to specify that vector is from the std namespace You can do this by adding std before the vector declaration std vector sf Texture textureList Solution 2 Using Statement Alternatively you can use a using statement to avoid typing std repeatedly Browntarik changed the title Vector is not a template error should be addressed by add missing include code action Vector is not a template error should be addressed by adding appropriate namespace on Oct 27 2023 Contributor browntarik on Oct 27 2023 Closed as a duplicate to 11541 browntarik closed this as completed on Oct 27 2023

Vector Is Not A Template

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Template parameters T Type of the elements Only if T is guaranteed to not throw while moving implementations can optimize to move elements instead of copying them during reallocations Aliased as member type vector value type Alloc Type of the allocator object used to define the storage allocation model Unfortunately this is not scheduled until 2020 if it is not cancelled again I am also unsure about the best practices with templates so any feedback would be appreciated Thank you That s what we are here for Review My compiler generates a warning on this line Vector components 0 components is expecting a list here not a

To match a template template argument A to a template template parameter P P must be at least as specialized as A see below If P s parameter list includes a parameter pack zero or more template parameters or parameter packs from A s template parameter list are matched by it since C 11 Formally a template template parameter P is at least as specialized as a template template C template class Type class Allocator allocator Type class vector Parameters Type The element data type to be stored in the vector Allocator The type that represents the stored allocator object that encapsulates details about the vector s allocation and deallocation of memory

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1 Answer Sorted by 0 The code in the question derived DirectedGraph from ggraph Graph so it s necessary to put at least Graph in a ggraph namespace Try 2 participants Hi liruoteng When I compile this project I encouter error message below which like usr local include opencv2 gpu gpu hpp 438 error vector is not a template I searched the issues of this project and caffe but not find similar q

For example this code Godbolt is wrong namespace std template class T class vector void foo const std vector int It s wrong for at least two reasons It s easy to forget that vector is a template of two parameters not just one That s easy to fix namespace std can contain arbitrarily many inline namespaces Here s the problem std vector template can have does have more than one argument You re required to make them match in the number order and nature type non type etc It is possible however to cheat your way out of specifying all those arguments and use the defaults It s called the proxy template technique

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Vector Is Not A Template - To match a template template argument A to a template template parameter P P must be at least as specialized as A see below If P s parameter list includes a parameter pack zero or more template parameters or parameter packs from A s template parameter list are matched by it since C 11 Formally a template template parameter P is at least as specialized as a template template