fix: -Wsign-compare warnings (#336)
mixing signed and unsigned types in comparison can end up having unintended results. for example: if (-1 < 1U) printf("true\n"); else printf("false\n"); previously we silenced these warnings, instead just fix them properly via necessary casting, and in cases where the value cannot be negative (e.g width/height members) make them unsigned. Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/336 Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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@ -10,4 +10,4 @@
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-Wbad-function-cast -Wdeclaration-after-statement
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-Wmissing-prototypes -Wstrict-prototypes
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# silence
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-Wno-sign-compare -Wno-unused-parameter -Wno-missing-field-initializers
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-Wno-unused-parameter -Wno-missing-field-initializers
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@ -36,7 +36,7 @@ bool cg_quit(arg_t status)
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unsigned int i;
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if (options->to_stdout && markcnt > 0) {
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for (i = 0; i < filecnt; i++) {
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for (i = 0; i < (unsigned int)filecnt; i++) {
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if (files[i].flags & FF_MARK)
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printf("%s%c", files[i].name, options->using_null ? '\0' : '\n');
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}
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@ -319,7 +319,7 @@ bool ci_drag(arg_t drag_mode)
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float px, py;
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XEvent e;
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if ((int)(img.w * img.zoom) <= win.w && (int)(img.h * img.zoom) <= win.h)
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if ((int)(img.w * img.zoom) <= (int)win.w && (int)(img.h * img.zoom) <= (int)win.h)
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return false;
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win_set_cursor(&win, drag_mode == DRAG_ABSOLUTE ? CURSOR_DRAG_ABSOLUTE : CURSOR_DRAG_RELATIVE);
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22
image.c
22
image.c
@ -473,7 +473,7 @@ bool img_load(img_t *img, const fileinfo_t *file)
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CLEANUP void img_close(img_t *img, bool decache)
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{
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int i;
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unsigned int i;
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if (img->multi.cnt > 0) {
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for (i = 0; i < img->multi.cnt; i++) {
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@ -671,7 +671,9 @@ bool img_zoom_to(img_t *img, float z)
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int x, y;
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if (ZOOM_MIN <= z && z <= ZOOM_MAX) {
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win_cursor_pos(img->win, &x, &y);
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if (x < 0 || x >= img->win->w || y < 0 || y >= img->win->h) {
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if (x < 0 || (unsigned int)x >= img->win->w ||
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y < 0 || (unsigned int)y >= img->win->h)
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{
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x = img->win->w / 2;
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y = img->win->h / 2;
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}
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@ -688,13 +690,13 @@ bool img_zoom_to(img_t *img, float z)
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bool img_zoom(img_t *img, int d)
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{
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int i = d > 0 ? 0 : ARRLEN(zoom_levels)-1;
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while (i >= 0 && i < ARRLEN(zoom_levels) && (d > 0 ?
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zoom_levels[i]/100 <= img->zoom : zoom_levels[i]/100 >= img->zoom))
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int i = d > 0 ? 0 : (int)ARRLEN(zoom_levels)-1;
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while (i >= 0 && i < (int)ARRLEN(zoom_levels) &&
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(d > 0 ? zoom_levels[i]/100 <= img->zoom : zoom_levels[i]/100 >= img->zoom))
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{
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i += d;
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}
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i = MIN(MAX(i, 0), ARRLEN(zoom_levels)-1);
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i = MIN(MAX(i, 0), (int)ARRLEN(zoom_levels)-1);
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return img_zoom_to(img, zoom_levels[i]/100);
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}
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@ -787,7 +789,7 @@ bool img_pan_edge(img_t *img, direction_t dir)
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void img_rotate(img_t *img, degree_t d)
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{
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int i, tmp;
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unsigned int i, tmp;
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float ox, oy;
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imlib_context_set_image(img->im);
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@ -816,7 +818,7 @@ void img_rotate(img_t *img, degree_t d)
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void img_flip(img_t *img, flipdir_t d)
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{
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int i;
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unsigned int i;
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void (*imlib_flip_op[3])(void) = {
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imlib_image_flip_horizontal,
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imlib_image_flip_vertical,
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@ -878,7 +880,7 @@ bool img_change_gamma(img_t *img, int d)
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static bool img_frame_goto(img_t *img, int n)
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{
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if (n < 0 || n >= img->multi.cnt || n == img->multi.sel)
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if (n < 0 || (unsigned int)n >= img->multi.cnt || (unsigned int)n == img->multi.sel)
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return false;
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img->multi.sel = n;
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@ -899,7 +901,7 @@ bool img_frame_navigate(img_t *img, int d)
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return false;
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d += img->multi.sel;
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d = MAX(0, MIN(d, img->multi.cnt - 1));
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d = MAX(0, MIN(d, (int)img->multi.cnt - 1));
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return img_frame_goto(img, d);
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}
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8
main.c
8
main.c
@ -224,7 +224,7 @@ static bool check_timeouts(int *t)
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int i = 0, tdiff, tmin = -1;
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struct timeval now;
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while (i < ARRLEN(timeouts)) {
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while (i < (int)ARRLEN(timeouts)) {
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if (timeouts[i].active) {
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gettimeofday(&now, 0);
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tdiff = TV_DIFF(&timeouts[i].when, &now);
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@ -434,11 +434,11 @@ int nav_button(void)
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win_cursor_pos(&win, &x, &y);
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nw = NAV_IS_REL ? win.w * NAV_WIDTH / 100 : NAV_WIDTH;
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nw = MIN(nw, (win.w + 1) / 2);
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nw = MIN(nw, ((int)win.w + 1) / 2);
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if (x < nw)
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return 0;
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else if (x < win.w-nw)
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else if (x < (int)win.w - nw)
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return 1;
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else
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return 2;
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@ -917,7 +917,7 @@ int main(int argc, char *argv[])
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const char *name[] = { "image-info", "thumb-info", "key-handler", "win-title" };
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const char *s = "/nsxiv/exec/";
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for (i = 0; i < ARRLEN(cmd); i++) {
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for (i = 0; i < (int)ARRLEN(cmd); i++) {
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n = strlen(homedir) + strlen(dsuffix) + strlen(s) + strlen(name[i]) + 1;
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cmd[i]->cmd = emalloc(n);
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snprintf(cmd[i]->cmd, n, "%s%s%s%s", homedir, dsuffix, s, name[i]);
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10
nsxiv.h
10
nsxiv.h
@ -162,9 +162,9 @@ typedef struct {
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typedef struct {
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img_frame_t *frames;
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int cap;
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int cnt;
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int sel;
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unsigned int cap;
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unsigned int cnt;
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unsigned int sel;
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bool animate;
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unsigned int framedelay;
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int length;
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@ -403,8 +403,8 @@ struct win {
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unsigned int bw;
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struct {
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int w;
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int h;
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unsigned int w;
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unsigned int h;
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Pixmap pm;
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} buf;
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2
thumbs.c
2
thumbs.c
@ -561,7 +561,7 @@ bool tns_zoom(tns_t *tns, int d)
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oldzl = tns->zl;
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tns->zl += -(d < 0) + (d > 0);
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tns->zl = MAX(tns->zl, 0);
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tns->zl = MIN(tns->zl, ARRLEN(thumb_sizes)-1);
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tns->zl = MIN(tns->zl, (int)ARRLEN(thumb_sizes)-1);
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tns->bw = ((thumb_sizes[tns->zl] - 1) >> 5) + 1;
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tns->bw = MIN(tns->bw, 4);
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10
window.c
10
window.c
@ -259,7 +259,7 @@ void win_open(win_t *win)
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ButtonReleaseMask | ButtonPressMask | KeyPressMask |
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PointerMotionMask | StructureNotifyMask);
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for (i = 0; i < ARRLEN(cursors); i++) {
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for (i = 0; i < (int)ARRLEN(cursors); i++) {
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if (i != CURSOR_NONE)
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cursors[i].icon = XCreateFontCursor(e->dpy, cursors[i].name);
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}
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@ -274,12 +274,12 @@ void win_open(win_t *win)
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n = icons[ARRLEN(icons)-1].size;
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icon_data = emalloc((n * n + 2) * sizeof(*icon_data));
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for (i = 0; i < ARRLEN(icons); i++) {
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for (i = 0; i < (int)ARRLEN(icons); i++) {
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n = 0;
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icon_data[n++] = icons[i].size;
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icon_data[n++] = icons[i].size;
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for (j = 0; j < icons[i].cnt; j++) {
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for (j = 0; j < (int)icons[i].cnt; j++) {
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for (c = icons[i].data[j] >> 4; c >= 0; c--)
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icon_data[n++] = icon_colors[icons[i].data[j] & 0x0F];
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}
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@ -345,7 +345,7 @@ bool win_configure(win_t *win, XConfigureEvent *c)
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{
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bool changed;
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changed = win->w != c->width || win->h + win->bar.h != c->height;
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changed = win->w != (unsigned int)c->width || win->h + win->bar.h != (unsigned int)c->height;
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win->x = c->x;
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win->y = c->y;
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@ -516,7 +516,7 @@ void win_set_title(win_t *win, const char *title, size_t len)
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{
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int i, targets[] = { ATOM_WM_NAME, ATOM_WM_ICON_NAME, ATOM__NET_WM_NAME, ATOM__NET_WM_ICON_NAME };
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for (i = 0; i < ARRLEN(targets); ++i) {
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for (i = 0; i < (int)ARRLEN(targets); ++i) {
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XChangeProperty(win->env.dpy, win->xwin, atoms[targets[i]],
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atoms[ATOM_UTF8_STRING], 8, PropModeReplace,
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(unsigned char *)title, len);
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