fixed formatting of the smallest possible integer

* In other words, fixed `-9223372036854775808\` on --with-teco-integer=64
  (which is the default).
* The reason is that ABS(G_MININT64) == G_MININT64 since -G_MININT64 == G_MININT64.
  It is therefore important not to call ABS() on arbitrary teco_int_t's.

2 files changed, 3 insertions, 2 deletions

diff --git a/src/expressions.c b/src/expressions.c
index c48e7b0..f802c6e 100644
--- a/src/expressions.c
+++ b/src/expressions.c
@@ -399,11 +399,11 @@ teco_expressions_format(gchar *buffer, teco_int_t number, teco_qreg_t *qreg)
 
 	gchar *p = buffer + TECO_EXPRESSIONS_FORMAT_LEN;
 
-	teco_int_t v = ABS(number);
+	teco_int_t v = number;
 
 	*--p = '\0';
 	do {
-		*--p = '0' + (v % radix);
+		*--p = '0' + ABS(v % radix);
 		if (*p > '9')
 			*p += 'A' - '9' - 1;
 	} while ((v /= radix));
diff --git a/src/view.c b/src/view.c
index df09aac..71d74e2 100644
--- a/src/view.c
+++ b/src/view.c
@@ -612,6 +612,7 @@ teco_view_glyphs2bytes_relative(teco_view_t *ctx, gsize pos, teco_int_t n)
 {
 	if (!n)
 		return pos;
+	/* NOTE: Does not work for n == G_MININT64. */
 	if (ABS(n) > TECO_RELATIVE_LIMIT)
 		return teco_view_glyphs2bytes(ctx, teco_view_bytes2glyphs(ctx, pos) + n);