MapInit

Documentation

API Reference

MapInit

Description

Initialize a map with required key hash and compare callbacks plus a user-owned allocator. Uses linear probing. Allocator argument is optional inside a Scope block.

Usage example (Cross-references)

Usage examples (Cross-references)

In Map.Insert.c:24:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapInsertR(&map, 1, 10);

In Map.Insert.c:70:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
        int              key   = 42;
        int              value = 84;

In Map.Insert.c:93:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc  = DefaultAllocatorInit();
        IntIntMap        map    = MapInit(i32_hash, i32_compare, &alloc);
        bool             result = true;

In Map.Insert.c:120:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
        int             *value_ptr;
        bool             result;

In Float.Compare.c:199:

        DefaultAllocator alloc = DefaultAllocatorInit();
    
        Map(Float, u64) counts = MapInit(float_hash, float_compare, &alloc);
    
        Float k1 = FloatFromStr("3.14", &alloc.base);

In Map.Foreach.c:24:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc     = DefaultAllocatorInit();
        IntIntMap        map       = MapInit(i32_hash, i32_compare, &alloc);
        int              key_sum   = 0;
        int              value_sum = 0;

In Map.Foreach.c:48:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc          = DefaultAllocatorInit();
        IntIntMap        map            = MapInit(i32_hash, i32_compare, &alloc);
        int              unique_key_sum = 0;
        int              all_value_sum  = 0;

In Map.Deadend.c:36:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapContainsPair(&map, 1, 10);

In Map.Deadend.c:50:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapRemovePair(&map, 1, 10);

In Map.Deadend.c:64:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapRemoveIf(&map, NULL, NULL);

In Map.Deadend.c:78:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapRetainIf(&map, NULL, NULL);

In Map.Remove.c:24:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapSetOnlyR(&map, 1, 10);

In Map.Remove.c:70:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapInsertR(&map, 1, 10);

In Map.Remove.c:92:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapInsertR(&map, 5, 50);

In Map.Remove.c:113:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        for (int i = 0; i < 12; i++) {

In Int.Compare.c:156:

        DefaultAllocator alloc = DefaultAllocatorInit();
    
        Map(Int, u64) counts = MapInit(int_hash, int_compare, &alloc);
    
        Int k1 = IntFrom(100u, &alloc.base);

In Map.Access.c:49:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapSetOnlyR(&map, 11, 110);

In Map.Access.c:66:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapSetOnlyR(&map, 11, 110);

In Map.Access.c:83:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        MapSetOnlyR(&map, 11, 110);

In Map.Access.c:102:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc     = DefaultAllocatorInit();
        IntIntMap        map       = MapInit(i32_hash, i32_compare, &alloc);
        MapValueCursor   cursor    = MapValueCursorInvalid();
        int              value_sum = 0;

In Map.Access.c:138:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc  = DefaultAllocatorInit();
        IntIntMap        map    = MapInit(i32_hash, i32_compare, &alloc);
        MapValueCursor   cursor = MapValueCursorInvalid();

In Map.Init.c:56:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
        size             reserved_capacity;

In Map.Init.c:83:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        for (int i = 0; i < 24; i++) {

In Graph.Foreach.c:139:

    
        IntGraph graph  = GraphInit(&alloc);
        CountMap counts = MapInit(node_id_hash, node_id_compare, &alloc);
    
        GraphNodeId a = GraphAddNodeR(&graph, 1);

In BitVec.Compare.c:1028:

        Allocator       *base  = ALLOCATOR_OF(&alloc);
    
        Map(BitVec, u64) counts = MapInit(bitvec_hash, bitvec_compare, &alloc);
    
        BitVec k1 = BitVecInit(base);

In Map.Ops.c:159:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc     = DefaultAllocatorInit();
        IntIntMap        map       = MapInit(i32_hash, i32_compare, &alloc);
        int              threshold = 30;

In Map.Type.c:58:

        typedef Map(int, int) IntIntMap;
        DefaultAllocator alloc = DefaultAllocatorInit();
        IntIntMap        map   = MapInit(i32_hash, i32_compare, &alloc);
    
        bool result = MapPairCount(&map) == 0 && MapCapacity(&map) == 0 && MapTombstones(&map) == 0 &&

Last updated on June 4, 2026

MapGetOrDefault MapInitWithDeepCopy