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Changed formula for getting the number of elements in a static array

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When using the formula [sizeof(array) / sizeof( x )] to get the number
of element in a static array, it is better to use array[0] for 'x'
instead of the base type of array:
 - in case the base type would change someday;
 - if the compiler were deciding to insert padding somewhere
This commit is contained in:
Christophe CURIS
2013-05-11 00:07:12 +02:00
committed by Carlos R. Mafra
parent e17a197bc4
commit 7f6699ffca
10 changed files with 18 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
WINGs/wfontpanel.c
View File

@@ -428,7 +428,7 @@ static void addSizeToTypeface(Typeface * face, int size)
if (size == 0) {
int j;
for (j = 0; j < sizeof(scalableFontSizes) / sizeof(int); j++) {
for (j = 0; j < sizeof(scalableFontSizes) / sizeof(scalableFontSizes[0]); j++) {
size = scalableFontSizes[j];
if (!WMCountInArray(face->sizes, (void *)(uintptr_t) size)) {

6
WINGs/widgets.c
View File

@@ -552,7 +552,7 @@ WMScreen *WMCreateScreenWithRContext(Display * display, int screen, RContext * c
"_NET_WM_ICON_NAME",
"_NET_WM_ICON",
};
Atom atoms[sizeof(atomNames) / sizeof(char *)];
Atom atoms[sizeof(atomNames) / sizeof(atomNames[0])];
int i;
if (!initialized) {
@@ -803,9 +803,9 @@ WMScreen *WMCreateScreenWithRContext(Display * display, int screen, RContext * c
}
#ifdef HAVE_XINTERNATOMS
XInternAtoms(display, atomNames, sizeof(atomNames) / sizeof(char *), False, atoms);
XInternAtoms(display, atomNames, sizeof(atomNames) / sizeof(atomNames[0]), False, atoms);
#else
for (i = 0; i < sizeof(atomNames) / sizeof(char *); i++) {
for (i = 0; i < sizeof(atomNames) / sizeof(atomNames[0]); i++) {
atoms[i] = XInternAtom(display, atomNames[i], False);
}
#endif

2
WPrefs.app/Appearance.c
View File

@@ -1102,7 +1102,7 @@ static void previewClick(XEvent * event, void *clientData)
switch (panel->oldTabItem) {
case 0:
for (i = 0; i < sizeof(previewPositions) / sizeof(WMRect); i++) {
for (i = 0; i < sizeof(previewPositions) / sizeof(previewPositions[0]); i++) {
if (event->xbutton.x >= previewPositions[i].pos.x
&& event->xbutton.y >= previewPositions[i].pos.y
&& event->xbutton.x < previewPositions[i].pos.x

4
WPrefs.app/MouseSettings.c
View File

@@ -608,13 +608,13 @@ static void createPanel(Panel * p)
WMResizeWidget(panel->wheelP, 135, 20);
WMMoveWidget(panel->wheelP, 95, 129);
for (i = 0; i < sizeof(buttonActions) / sizeof(char *); i++) {
for (i = 0; i < sizeof(buttonActions) / sizeof(buttonActions[0]); i++) {
WMAddPopUpButtonItem(panel->button1P, buttonActions[i]);
WMAddPopUpButtonItem(panel->button2P, buttonActions[i]);
WMAddPopUpButtonItem(panel->button3P, buttonActions[i]);
}
for (i = 0; i < sizeof(wheelActions) / sizeof(char *); i++) {
for (i = 0; i < sizeof(wheelActions) / sizeof(wheelActions[0]); i++) {
WMAddPopUpButtonItem(panel->wheelP, wheelActions[i]);
}

2
WPrefs.app/Workspace.c
View File

@@ -81,7 +81,7 @@ static void showData(_Panel * panel)
str = "center";
idx = 1; /* center */
for (i = 0; i < sizeof(WSNamePositions) / sizeof(char *); i++) {
for (i = 0; i < sizeof(WSNamePositions) / sizeof(WSNamePositions[0]); i++) {
if (strcasecmp(WSNamePositions[i], str) == 0) {
idx = i;
break;

8
src/defaults.c
View File

@@ -760,7 +760,7 @@ static void initDefaults()
WMPLSetCaseSensitive(False);
for (i = 0; i < sizeof(optionList) / sizeof(WDefaultEntry); i++) {
for (i = 0; i < sizeof(optionList) / sizeof(optionList[0]); i++) {
entry = &optionList[i];
entry->plkey = WMCreatePLString(entry->key);
@@ -770,7 +770,7 @@ static void initDefaults()
entry->plvalue = NULL;
}
for (i = 0; i < sizeof(staticOptionList) / sizeof(WDefaultEntry); i++) {
for (i = 0; i < sizeof(staticOptionList) / sizeof(staticOptionList[0]); i++) {
entry = &staticOptionList[i];
entry->plkey = WMCreatePLString(entry->key);
@@ -925,7 +925,7 @@ void wReadStaticDefaults(WMPropList * dict)
unsigned int i;
void *tdata;
for (i = 0; i < sizeof(staticOptionList) / sizeof(WDefaultEntry); i++) {
for (i = 0; i < sizeof(staticOptionList) / sizeof(staticOptionList[0]); i++) {
entry = &staticOptionList[i];
if (dict)
@@ -1079,7 +1079,7 @@ void wReadDefaults(WScreen * scr, WMPropList * new_dict)
needs_refresh = 0;
for (i = 0; i < sizeof(optionList) / sizeof(WDefaultEntry); i++) {
for (i = 0; i < sizeof(optionList) / sizeof(optionList[0]); i++) {
entry = &optionList[i];
if (new_dict)

6
src/startup.c
View File

@@ -482,7 +482,7 @@ void StartUp(Bool defaultScreenOnly)
#ifdef HAVE_XRANDR
int dummy;
#endif
Atom atom[sizeof(atomNames) / sizeof(char *)];
Atom atom[sizeof(atomNames) / sizeof(atomNames[0])];
/*
* Ignore CapsLock in modifiers
@@ -505,12 +505,12 @@ void StartUp(Bool defaultScreenOnly)
/* _XA_VERSION = XInternAtom(dpy, "VERSION", False); */
#ifdef HAVE_XINTERNATOMS
XInternAtoms(dpy, atomNames, sizeof(atomNames) / sizeof(char *), False, atom);
XInternAtoms(dpy, atomNames, sizeof(atomNames) / sizeof(atomNames[0]), False, atom);
#else
{
int i;
for (i = 0; i < sizeof(atomNames) / sizeof(char *); i++)
for (i = 0; i < sizeof(atomNames) / sizeof(atomNames[0]); i++)
atom[i] = XInternAtom(dpy, atomNames[i], False);
}
#endif

2
src/wmspec.c
View File

@@ -202,7 +202,7 @@ static atomitem_t atomNames[] = {
{"UTF8_STRING", &utf8_string},
};
#define atomNr (sizeof(atomNames)/sizeof(atomitem_t))
#define atomNr (sizeof(atomNames)/sizeof(atomNames[0]))
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1

2
src/xutil.c
View File

@@ -168,7 +168,7 @@ void FormatXError(Display * dpy, XErrorEvent * error, char *buffer, int size)
if (i > size - 100)
return;
buffer += i;
if (error->request_code >= sizeof(requestCodes) / sizeof(char *)) {
if (error->request_code >= sizeof(requestCodes) / sizeof(requestCodes[0])) {
sprintf(buffer, "\n Request code: %i\n", error->request_code);
} else {
sprintf(buffer, "\n Request code: %i %s\n", error->request_code,

2
util/fontconv.c
View File

@@ -105,7 +105,7 @@ static char *mapWeightToName(str * weight)
if (weight->len == 0)
return "";
for (i = 0; i < sizeof(normalNames) / sizeof(char *); i++) {
for (i = 0; i < sizeof(normalNames) / sizeof(normalNames[0]); i++) {
if (strlen(normalNames[i]) == weight->len && strncmp(normalNames[i], weight->str, weight->len)) {
return "";
}