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Add $IntMax and $IntMin special variables.

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This commit is contained in:
Dianne Skoll
2021-02-02 17:10:17 -05:00
parent 80d01f7158
commit 21175e8cf6
2 changed files with 14 additions and 0 deletions
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8
man/remind.1
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@@ -2065,6 +2065,14 @@ then \fBONCE\fR directives will be ignored.
.B $InfDelta (read-only)
If non-zero, then the \fB\-t\fR option was supplied on the command line.
.TP
.B $IntMax (read-only)
The largest representable \fBINT\fR. On a machine with 32-bit signed integers
using twos-complement representation, this will be 2147483647.
.TP
.B $IntMin (read-only)
The smallest representable \fBINT\fR. On a machine with 32-bit signed integers
using twos-complement representation, this will be -2147483648.
.TP
.B $LatDeg, $LatMin, $LatSec
These specify the latitude of your location. \fB$LatDeg\fR can
range from \-90 to 90, and the others from \-59 to 59. Northern latitudes

6
src/var.c
View File

@@ -17,6 +17,7 @@
#include <ctype.h>
#include <stdlib.h>
#include <limits.h>
#include "types.h"
#include "expr.h"
#include "globals.h"
@@ -31,6 +32,9 @@
#define VALUE ErrMsg[E_VAL]
#define UNDEF ErrMsg[E_UNDEF]
static int IntMin = INT_MIN;
static int IntMax = INT_MAX;
static Var *VHashTbl[VAR_HASH_SIZE];
typedef int (*SysVarFunc)(int, Value *);
@@ -661,6 +665,8 @@ static SysVar SysVarArr[] = {
{"HushMode", 0, INT_TYPE, &Hush, 0, 0 },
{"IgnoreOnce", 0, INT_TYPE, &IgnoreOnce, 0, 0 },
{"InfDelta", 0, INT_TYPE, &InfiniteDelta, 0, 0 },
{"IntMax", 0, INT_TYPE, &IntMax, 0, 0 },
{"IntMin", 0, INT_TYPE, &IntMin, 0, 0 },
{"LatDeg", 1, INT_TYPE, &LatDeg, -90, 90 },
{"LatMin", 1, INT_TYPE, &LatMin, -59, 59 },
{"LatSec", 1, INT_TYPE, &LatSec, -59, 59 },