st-nihal

My personal build of st
git clone git://nihaljere.xyz/st-nihal
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commit ba9d0365ac7e138b643d7179457f8465a1dc1191
parent 950ff21e17af487b205ea0b666be015790114fa7
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu,  8 Nov 2012 17:17:26 +0100

Clarify some or exclusive expressions

Since relational expresions are always evaluated to 0 or 1, we can use
bitwise xor operator instead of using more complex boolean expressions.
---
 st.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
Diffstat:
Mst.c | 14+++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/st.c b/st.c @@ -1475,15 +1475,15 @@ tsetmode(bool priv, bool set, int *args, int narg) { break; case 1049: /* = 1047 and 1048 */ case 47: - case 1047: - if(IS_SET(MODE_ALTSCREEN)) + case 1047: { + bool alt = IS_SET(MODE_ALTSCREEN) != 0; + if(alt) tclearregion(0, 0, term.col-1, term.row-1); - if((set && !IS_SET(MODE_ALTSCREEN)) || - (!set && IS_SET(MODE_ALTSCREEN))) { + if(set ^ alt) /* set is always 1 or 0 */ tswapscreen(); - } if(*args != 1049) break; + } /* pass through */ case 1048: tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); @@ -2546,9 +2546,9 @@ drawregion(int x1, int y1, int x2, int y2) { int ic, ib, x, y, ox, sl; Glyph base, new; char buf[DRAW_BUF_SIZ]; - bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN); + bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN) != 0; - if((sel.alt && !alt) || (!sel.alt && alt)) + if((sel.alt != 0) ^ alt) ena_sel = 0; if(!(xw.state & WIN_VISIBLE)) return;