Binary compatibility report for the libmemcached library between 0.20 and 0.21 versions on x86

Test Info

Library Name	libmemcached
Version #1	0.20
Version #2	0.21
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	10
Total Shared Libraries	1
Total Symbols / Types	63 / 76
Verdict	Incompatible (1.6%)

Problem Summary

	Severity	Count
Added Symbols	-	0
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	8
	Low	5
Problems with Symbols	High	0
	Medium	0
	Low	39
Problems with Constants	Low	0
Other Changes in Data Types	-	1

Problems with Data Types, Medium Severity (8)

	Change	Effect
1	Value of member MEMCACHED_CALLBACK_CLEANUP_FUNCTION has been changed from 1 to 2.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
2	Value of member MEMCACHED_CALLBACK_CLONE_FUNCTION has been changed from 2 to 3.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
3	Value of member MEMCACHED_CALLBACK_DELETE_TRIGGER has been changed from 7 to 8.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
4	Value of member MEMCACHED_CALLBACK_FREE_FUNCTION has been changed from 5 to 6.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
5	Value of member MEMCACHED_CALLBACK_GET_FAILURE has been changed from 6 to 7.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
6	Value of member MEMCACHED_CALLBACK_MALLOC_FUNCTION has been changed from 3 to 4.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
7	Value of member MEMCACHED_CALLBACK_REALLOC_FUNCTION has been changed from 4 to 5.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
8	Value of member MEMCACHED_CALLBACK_USER_DATA has been changed from 0 to 1.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

memcached_constants.h
[+] enum memcached_callback (8)

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Problems with Data Types, Low Severity (5)

	Change	Effect
1	Field prefix_key has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Field prefix_key_length has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
3	Size of this type has been changed from 404 bytes to 420 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Base type has been changed from enum memcached_return()(memcached_st,char,size_t) to enum memcached_return()(memcached_st,char const,size_t).	Replacement of the base data type may indicate a change in its semantic meaning.

	Change	Effect
1	Base type has been changed from enum memcached_return()(memcached_st,char,size_t,memcached_result_st) to enum memcached_return()(memcached_st,char const,size_t,memcached_result_st).	Replacement of the base data type may indicate a change in its semantic meaning.

memcached.h
[+] struct memcached_st (3)

memcached_types.h
[+] typedef memcached_trigger_delete_key (1)
[+] typedef memcached_trigger_key (1)

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Problems with Symbols, Low Severity (39)

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 4th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
3	Type of 6th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 4th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
3	Type of 6th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 4th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
3	Type of 6th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 4th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
3	Type of 6th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 4th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
3	Type of 6th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 4th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter master_key has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
3	Type of 6th parameter value has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

memcached.h, libmemcached.so.2.0.0
[+] memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value ) (1)
[+] memcached_delete ( memcached_st* ptr, char* key, size_t key_length, time_t expiration ) (1)
[+] memcached_delete_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, time_t expiration ) (2)
[+] memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error ) (1)
[+] memcached_get_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error ) (2)
[+] memcached_increment ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value ) (1)
[+] memcached_mget_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char** keys, size_t* key_length, unsigned int number_of_keys ) (1)

memcached_storage.h, libmemcached.so.2.0.0
[+] memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (2)
[+] memcached_add_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (3)
[+] memcached_append ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (2)
[+] memcached_append_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (3)
[+] memcached_cas ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags, uint64_t cas ) (2)
[+] memcached_cas_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags, uint64_t cas ) (3)
[+] memcached_prepend ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (2)
[+] memcached_prepend_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (3)
[+] memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (2)
[+] memcached_replace_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (3)
[+] memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (2)
[+] memcached_set_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags ) (3)

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Other Changes in Data Types (1)

	Change	Effect
1	The member MEMCACHED_CALLBACK_PREFIX_KEY with value 0 has been added.	No effect.

memcached_constants.h
[+] enum memcached_callback (1)

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Header Files (10)

libmemcached_config.h
memcached.h
memcached.hh
memcached_constants.h
memcached_result.h
memcached_server.h
memcached_storage.h
memcached_string.h
memcached_types.h
memcached_watchpoint.h

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Shared Libraries (1)

libmemcached.so.2.0.0

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