Binary compatibility report for the libmemcached library between 0.15 and 0.16 versions on x86

Test Info

Library Name	libmemcached
Version #1	0.15
Version #2	0.16
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	2
Total Shared Libraries	1
Total Symbols / Types	52 / 64
Verdict	Incompatible (4.8%)

Problem Summary

	Severity	Count
Added Symbols	-	0
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	1
	Low	2
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	0
Other Changes in Data Types	-	3

Problems with Data Types, Medium Severity (1)

	Change	Effect
1	Type of field limit_maxbytes has been changed from uint32_t (4 bytes) to uint64_t (8 bytes).	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.

memcached.h
[+] struct memcached_stat_st (1)

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Problems with Data Types, Low Severity (2)

memcached.h
[+] enum memcached_return (1)

	Change	Effect
1	Value of member MEMCACHED_MAXIMUM_RETURN has been changed from 32 to 33.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

[+] affected symbols (38)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_append ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_behavior_set ( memcached_st* ptr, enum memcached_behavior flag, void* data )

Return value has type 'enum memcached_return'.

memcached_callback_get ( memcached_st* ptr, enum memcached_callback flag, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_callback_set ( memcached_st* ptr, enum memcached_callback flag, void* data )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

Return value has type 'enum memcached_return'.

memcached_delete ( memcached_st* ptr, char* key, size_t key_length, time_t expiration )

Return value has type 'enum memcached_return'.

memcached_delete_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, time_t expiration )

Return value has type 'enum memcached_return'.

memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

6th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_fetch_execute ( memcached_st* ptr, unsigned int(**callback)(memcached_st*, memcached_result_st*, void*), void* context, unsigned int number_of_callbacks )

Return value has type 'enum memcached_return'.

memcached_fetch_result ( memcached_st* ptr, memcached_result_st* result, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_flush ( memcached_st* ptr, time_t expiration )

Return value has type 'enum memcached_return'.

memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

6th parameter 'error' (pointer) has base type 'enum memcached_return'.

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 )

8th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_increment ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

Return value has type 'enum memcached_return'.

memcached_mget ( memcached_st* ptr, char** keys, size_t* key_length, unsigned int number_of_keys )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_prepend ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_server_add ( memcached_st* ptr, char* hostname, unsigned int port )

Return value has type 'enum memcached_return'.

memcached_server_add_udp ( memcached_st* ptr, char* hostname, unsigned int port )

Return value has type 'enum memcached_return'.

memcached_server_add_unix_socket ( memcached_st* ptr, char* filename )

Return value has type 'enum memcached_return'.

memcached_server_list_append ( memcached_server_st* ptr, char* hostname, unsigned int port, enum memcached_return* error )

4th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_server_push ( memcached_st* ptr, memcached_server_st* list )

Return value has type 'enum memcached_return'.

memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_stat ( memcached_st* ptr, char* args, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_stat_get_keys ( memcached_st* ptr, memcached_stat_st* stat, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_stat_get_value ( memcached_st* ptr, memcached_stat_st* stat, char* key, enum memcached_return* error )

4th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_stat_servername ( memcached_stat_st* stat, char* args, char* hostname, unsigned int port )

Return value has type 'enum memcached_return'.

memcached_strerror ( memcached_st* ptr, enum memcached_return rc )

2nd parameter 'rc' has type 'enum memcached_return'.

memcached_verbosity ( memcached_st* ptr, unsigned int verbosity )

Return value has type 'enum memcached_return'.

	Change	Effect
1	Size of this type has been changed from 136 bytes to 140 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

[+] struct memcached_stat_st (1)

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Other Changes in Data Types (3)

	Change	Effect
1	The member MEMCACHED_BEHAVIOR_SORT_HOSTS with value 12 has been added.	No effect.
2	The member MEMCACHED_BEHAVIOR_VERIFY_KEY with value 13 has been added.	No effect.

memcached.h
[+] enum memcached_behavior (2)
[+] enum memcached_return (1)

	Change	Effect
1	The member MEMCACHED_BAD_KEY_PROVIDED with value 32 has been added.	No effect.

[+] affected symbols (38)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_append ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_behavior_set ( memcached_st* ptr, enum memcached_behavior flag, void* data )

Return value has type 'enum memcached_return'.

memcached_callback_get ( memcached_st* ptr, enum memcached_callback flag, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_callback_set ( memcached_st* ptr, enum memcached_callback flag, void* data )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

Return value has type 'enum memcached_return'.

memcached_delete ( memcached_st* ptr, char* key, size_t key_length, time_t expiration )

Return value has type 'enum memcached_return'.

memcached_delete_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, time_t expiration )

Return value has type 'enum memcached_return'.

memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

6th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_fetch_execute ( memcached_st* ptr, unsigned int(**callback)(memcached_st*, memcached_result_st*, void*), void* context, unsigned int number_of_callbacks )

Return value has type 'enum memcached_return'.

memcached_fetch_result ( memcached_st* ptr, memcached_result_st* result, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_flush ( memcached_st* ptr, time_t expiration )

Return value has type 'enum memcached_return'.

memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

6th parameter 'error' (pointer) has base type 'enum memcached_return'.

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 )

8th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_increment ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

Return value has type 'enum memcached_return'.

memcached_mget ( memcached_st* ptr, char** keys, size_t* key_length, unsigned int number_of_keys )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_prepend ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_server_add ( memcached_st* ptr, char* hostname, unsigned int port )

Return value has type 'enum memcached_return'.

memcached_server_add_udp ( memcached_st* ptr, char* hostname, unsigned int port )

Return value has type 'enum memcached_return'.

memcached_server_add_unix_socket ( memcached_st* ptr, char* filename )

Return value has type 'enum memcached_return'.

memcached_server_list_append ( memcached_server_st* ptr, char* hostname, unsigned int port, enum memcached_return* error )

4th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_server_push ( memcached_st* ptr, memcached_server_st* list )

Return value has type 'enum memcached_return'.

memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Return value has type 'enum memcached_return'.

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 )

Return value has type 'enum memcached_return'.

memcached_stat ( memcached_st* ptr, char* args, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_stat_get_keys ( memcached_st* ptr, memcached_stat_st* stat, enum memcached_return* error )

3rd parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_stat_get_value ( memcached_st* ptr, memcached_stat_st* stat, char* key, enum memcached_return* error )

4th parameter 'error' (pointer) has base type 'enum memcached_return'.

memcached_stat_servername ( memcached_stat_st* stat, char* args, char* hostname, unsigned int port )

Return value has type 'enum memcached_return'.

memcached_strerror ( memcached_st* ptr, enum memcached_return rc )

2nd parameter 'rc' has type 'enum memcached_return'.

memcached_verbosity ( memcached_st* ptr, unsigned int verbosity )