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uninit-disposition iterate

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John Kerl 2016-02-27 10:26:06 -05:00
parent ccd79dac82
commit 7dd25327b2
2 changed files with 6 additions and 29 deletions
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27
c/containers/mlrval.c
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@ -10,32 +10,7 @@
#include "containers/mlrval.h"
// ================================================================
// NOTES:
//
// * This is used by mlr filter and mlr put, as well as by other
// verbs which do integer-preservation logic (i.e. they produce
// integer output given integer input).
//
// * Unlike most files in Miller which are read top-down (with sufficient
// static prototypes at the top of the file to keep the compiler happy),
// please read this one from the bottom up. There are very many short
// functions and I chose not to write out so many prototypes: they would have
// made things less clear by their very volume.
//
// * Comparison to rval_evaluators.c: this file is functions from mlrval(s) to
// mlrval; in rval_evaluators.c we have the higher-level notion of
// evaluating lrec objects, using mlrval.c to do so.
//
// * There are two kinds of functions here: those with _x_ in their names
// which accept various types of mlrval, with disposition-matrices in
// mlrval.c functions, and those with _i_/_f_/_b_/_s_ (int, float, boolean,
// string) which either type-check or type-coerce their arguments, invoking
// type-specific functions in mlrval.c. Those with _n_ take int or float
// and also use disposition matrices. In all cases it's the job of
// the calling routines to invoke functions here with mlrvals of the correct
// type(s).
//
// See also important notes at the top of mlrval.h.
// See important notes at the top of mlrval.h.
// ================================================================
// For some Linux distros, in spite of including time.h:

8
c/todo.txt
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@ -59,12 +59,14 @@ PARAMETERIZED EMIT
================================================================
TRI-SPLIT NULL, AND += ET AL.
* recheck all numerics of void
! UTs
-
mlr put '@sum += $x; filter false; end{emit @sum}' ../data/small
mlr put '@sum += $x; filter false; end{emit(@sum)}' ../data/small
mlr put '@sum[$a] += $x; filter false; end{emit(@sum, "a")}' ../data/small
* UTs
* to mld:ref
* explicit initialization OK:
mlr --opprint put -v 'begin {@count=0; @sum=0.0}; @count=@count+1; @sum=@sum+$x; end{@mean=@sum/@count; emit @mean}' ../data/small