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#include <libmemcached/memcached.h>
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.B memcached_return_t memcached_increment (memcached_st *ptr, const char *key, size_t key_length, unsigned int offset, uint64_t *value);
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.B memcached_return_t memcached_decrement (memcached_st *ptr, const char *key, size_t key_length, unsigned int offset, uint64_t *value);
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.B memcached_return_t memcached_increment_with_initial (memcached_st *ptr, const char *key, size_t key_length, uint64_t offset, uint64_t initial, time_t expiration, uint64_t *value);
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.B memcached_return_t memcached_decrement_with_initial (memcached_st *ptr, const char *key, size_t key_length, uint64_t offset, uint64_t initial, time_t expiration, uint64_t *value);
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.B memcached_return_t memcached_increment_by_key (memcached_st *ptr, const char *group_key, size_t group_key_length, const char *key, size_t key_length, unsigned int offset, uint64_t *value);
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.B memcached_return_t memcached_decrement_by_key (memcached_st *ptr, const char *group_key, size_t group_key_length, const char *key, size_t key_length, unsigned int offset, uint64_t *value);
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.B memcached_return_t memcached_increment_with_initial_by_key (memcached_st *ptr, const char *group_key, size_t group_key_length, const char *key, size_t key_length, uint64_t offset, uint64_t initial, time_t expiration, uint64_t *value);
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.B memcached_return_t memcached_decrement_with_initial_by_key (memcached_st *ptr, const char *group_key, size_t group_key_length, const char *key, size_t key_length, uint64_t offset, uint64_t initial, time_t expiration, uint64_t *value);
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.B memcached_return_t memcached_increment(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_decrement(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_increment_with_initial(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_decrement_with_initial(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_increment_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_decrement_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_increment_with_initial_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP)
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.B memcached_return_t memcached_decrement_with_initial_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP)
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Compile and link with \-lmemcached
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(overflow and underflow are not detected). This gives you the ability to use
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memcached to generate shared sequences of values.
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memcached_increment() takes a key and keylength and increments the value by
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the offset passed to it. The value is then returned via the unsigned int
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value pointer you pass to it.
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memcached_decrement() takes a key and keylength and decrements the value by
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the offset passed to it. The value is then returned via the unsigned int
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value pointer you pass to it.
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memcached_increment_with_initial() takes a key and keylength and increments
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the value by the offset passed to it. If the object specified by key does
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not exist, one of two things may happen: If the expiration value is
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MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all other
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expiration values, the operation will succeed by seeding the value for that
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key with a initial value to expire with the provided expiration time. The
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flags will be set to zero.The value is then returned via the unsigned int
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value pointer you pass to it.
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memcached_decrement_with_initial() takes a key and keylength and decrements
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the value by the offset passed to it. If the object specified by key does
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not exist, one of two things may happen: If the expiration value is
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MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all other
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expiration values, the operation will succeed by seeding the value for that
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key with a initial value to expire with the provided expiration time. The
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flags will be set to zero.The value is then returned via the unsigned int
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value pointer you pass to it.
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memcached_increment_by_key(), memcached_decrement_by_key(),
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memcached_increment_with_initial_by_key(), and
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memcached_decrement_with_initial_by_key() are master key equivalents of the
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memcached_increment takes a key and keylength and increments the value by
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the offset passed to it. The value is then returned via the uint32_t
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value pointer you pass to it.
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memcached_decrement takes a key and keylength and decrements the value by
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the offset passed to it. The value is then returned via the uint32_t
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value pointer you pass to it.
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memcached_increment_with_initial takes a key and keylength and increments
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the value by the offset passed to it. If the object specified by key does
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not exist, one of two things may happen: If the expiration value is
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MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all other
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expiration values, the operation will succeed by seeding the value for that
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key with a initial value to expire with the provided expiration time. The
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flags will be set to zero.The value is then returned via the uint32_t
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value pointer you pass to it.
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memcached_decrement_with_initial takes a key and keylength and decrements
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the value by the offset passed to it. If the object specified by key does
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not exist, one of two things may happen: If the expiration value is
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MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all other
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expiration values, the operation will succeed by seeding the value for that
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key with a initial value to expire with the provided expiration time. The
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flags will be set to zero.The value is then returned via the uint32_t
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value pointer you pass to it.
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\fI\%memcached_increment_by_key()\fP, \fI\%memcached_decrement_by_key()\fP,
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\fI\%memcached_increment_with_initial_by_key()\fP, and
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\fI\%memcached_decrement_with_initial_by_key()\fP are master key equivalents of the above.
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A value of type \fBmemcached_return_t\fP is returned.
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A value of type \fBmemcached_return_t\fP is returned.
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On success that value will be \fBMEMCACHED_SUCCESS\fP.
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Use memcached_strerror() to translate this value to a printable string.
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Use memcached_strerror to translate this value to a printable string.
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To find out more information please check:
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docs/man/memcached_increment_with_initial.3
