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| author | Kaz Kylheku <kaz@kylheku.com> | 2016-11-01 20:55:46 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2016-11-01 20:55:46 -0700 |
| commit | d01a12405fbffb6a68345f72a510bf9e25e8ef95 (patch) | |
| tree | e6467491e22d3ebbd1e8289b34a64dda5fbd7653 /txr.1 | |
| parent | c038597853327f81ef1fc51584500a0073a9833e (diff) | |
| download | txr-d01a12405fbffb6a68345f72a510bf9e25e8ef95.tar.gz txr-d01a12405fbffb6a68345f72a510bf9e25e8ef95.tar.bz2 txr-d01a12405fbffb6a68345f72a510bf9e25e8ef95.zip | |
New negated equality test functions.
* eval.c (eval_init): Register neq, neql and nequal
intrinsics.
* lib.h (neq, neql, nequal): New inline functions.
* txr.1: Documented neq, neql and nequal
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 48 |
1 files changed, 48 insertions, 0 deletions
@@ -15433,6 +15433,54 @@ Certain object types have a custom .code equal function. +.coNP Functions @, neq @ neql and @ nequal +.synb +.mets (neq < left-obj << right-obj ) +.mets (neql < left-obj << right-obj ) +.mets (nequal < left-obj << right-obj ) +.syne +.desc +The functions +.codn neq , +.code neql +and +.code nequal +are logically negated counterparts of, respectively, +.codn eq , +.code eql +and +.codn equal . + +If +.code eq +returns +.code t +for a given pair of arguments +.meta left-obj +and +.metn right-obj , +then +.code neq +returns +.codn nil . +.IR "Vice versa" , +if +.code eq +returns +.codn nil , +.code neq +returns +.codn t . + +The same relationship exits between +.code eql +and +.codn neql , +and between +.code equal +and +.codn nequal . + .coNP Function @ less .synb .mets (less < left-obj << right-obj ) |