Main types

Return types:

• SGSRESULT [int]: output code (success = 0, failure: < 0 )
• SGSBOOL [int]: simplified output code (success = 1, failure = 0)
• SGSONE [int]: always returns 1
• SGSZERO [int]: always returns 0

Virtual machine / language types:

• sgs_Bool [int32_t]: boolean value
• sgs_Int [int64_t]: integer
• sgs_Real [double]: real (floating point) value
• sgs_SizeVal [int32_t]: size type
• sgs_CFunc [int ( sgs_Context* )]: C function type
• sgs_ObjInterface [struct]: object interface description
• sgs_Variable [struct]: the combined variable type

System types:

• sgs_Context [struct]: the virtual machine
• sgs_StackFrame [struct]: the function call info object

Interface data types:

• sgs_RegFuncConst [struct { const char*, sgs_CFunc }]: function registration unit
• sgs_RegIntConst [struct { const char*, sgs_Int }]: integer registration unit
• sgs_RegRealConst [struct { const char*, sgs_Real }]: real value registration unit
• sgs_ScriptFSData [struct { void*, const char*, void*, size_t }]: virtual file system request data

Interface function types:

• sgs_MemFunc [void* ( void* userdata, void* ptr, size_t size )]: memory interface function
• sgs_OutputFunc [void ( void* userdata, sgs_Context* C, const void* buf, sgs_SizeVal size )]: output function
• sgs_MsgFunc [void ( void* userdata, sgs_Context* C, int code, const char* text )]: messaging function
• sgs_HookFunc [void ( void*, sgs_Context*, int )]: debug hook function
• sgs_ScriptFSFunc [SGSRESULT ( void*, sgs_Context*, int, sgs_ScriptFSData* )]: virtual file system function