Function

Vipsslist_map2

Declaration [src] 

void*
vips_slist_map2 (
  GSList* list,
  VipsSListMap2Fn fn,
  void* a,
  void* b
)

Description [src]

Map over a slist. _copy() the list in case the callback changes it.

Parameters

list

Type: A list of guint8

A GSList.

The data is owned by the caller of the function.
fn

Type: VipsSListMap2Fn

Function to apply to each list element.

a

Type: void*

User data.

The argument can be NULL.
The data is owned by the caller of the function.
b

Type: void*

User data.

The argument can be NULL.
The data is owned by the caller of the function.

Return value

Type: void*

NULL if fn returns NULL for all arguments, otherwise the first non-NULL value from fn.

The data is owned by the called function.
The return value can be NULL.
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