bissen21/Marlin_Firmware
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Use C++ language supported 'nullptr' (#13944)

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This commit is contained in:
Scott Lahteine
2019-05-09 11:45:55 -05:00
committed by GitHub
parent e53d7e5517
commit ad4ffa1d2f
70 changed files with 670 additions and 668 deletions
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30
Marlin/src/sd/cardreader.cpp
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@ -158,7 +158,7 @@ char *createFilename(char *buffer, const dir_t &p) {
uint16_t nrFile_index;
void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=NULL*/) {
void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=nullptr*/) {
dir_t p;
uint8_t cnt = 0;
@ -226,7 +226,7 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
case LS_GetFilename:
createFilename(filename, p);
if (match != NULL) {
if (match != nullptr) {
if (strcasecmp(match, filename) == 0) return;
}
else if (cnt == nrFile_index) return; // 0 based index
@ -241,7 +241,7 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
void CardReader::ls() {
lsAction = LS_SerialPrint;
root.rewind();
lsDive(NULL, root);
lsDive(nullptr, root);
}
#if ENABLED(LONG_FILENAME_HOST_SUPPORT)
@ -276,7 +276,7 @@ void CardReader::ls() {
// Find the item, setting the long filename
diveDir.rewind();
lsDive(NULL, diveDir, segment);
lsDive(nullptr, diveDir, segment);
// Print /LongNamePart to serial output
SERIAL_CHAR('/');
@ -528,11 +528,11 @@ void CardReader::report_status() {
void CardReader::write_command(char *buf) {
char* begin = buf;
char* npos = NULL;
char* npos = nullptr;
char* end = buf + strlen(buf) - 1;
file.writeError = false;
if ((npos = strchr(buf, 'N')) != NULL) {
if ((npos = strchr(buf, 'N')) != nullptr) {
begin = strchr(npos, ' ') + 1;
end = strchr(npos, '*') - 1;
}
@ -566,7 +566,7 @@ void CardReader::checkautostart() {
sprintf_P(autoname, PSTR("auto%c.g"), autostart_index + '0');
dir_t p;
root.rewind();
while (root.readDir(&p, NULL) > 0) {
while (root.readDir(&p, nullptr) > 0) {
for (int8_t i = (int8_t)strlen((char*)p.name); i--;) p.name[i] = tolower(p.name[i]);
if (p.name[9] != '~' && strncmp((char*)p.name, autoname, 5) == 0) {
openAndPrintFile(autoname);
@ -602,9 +602,9 @@ void CardReader::closefile(const bool store_location) {
* Get the name of a file in the current directory by index
* with optional name to match.
*/
void CardReader::getfilename(uint16_t nr, const char * const match/*=NULL*/) {
void CardReader::getfilename(uint16_t nr, const char * const match/*=nullptr*/) {
#if ENABLED(SDSORT_CACHE_NAMES)
if (match != NULL) {
if (match != nullptr) {
while (nr < sort_count) {
if (strcasecmp(match, sortshort[nr]) == 0) break;
nr++;
@ -620,14 +620,14 @@ void CardReader::getfilename(uint16_t nr, const char * const match/*=NULL*/) {
lsAction = LS_GetFilename;
nrFile_index = nr;
workDir.rewind();
lsDive(NULL, workDir, match);
lsDive(nullptr, workDir, match);
}
uint16_t CardReader::getnrfilenames() {
lsAction = LS_Count;
nrFiles = 0;
workDir.rewind();
lsDive(NULL, workDir);
lsDive(nullptr, workDir);
//SERIAL_ECHOLN(nrFiles);
return nrFiles;
}
@ -639,7 +639,7 @@ uint16_t CardReader::getnrfilenames() {
*
* Returns a pointer to the last segment (filename) of the given DOS 8.3 path.
*
* A NULL result indicates an unrecoverable error.
* A nullptr result indicates an unrecoverable error.
*/
const char* CardReader::diveToFile(SdFile*& curDir, const char * const path, const bool echo/*=false*/) {
// Track both parent and subfolder
@ -647,13 +647,13 @@ const char* CardReader::diveToFile(SdFile*& curDir, const char * const path, con
SdFile *sub = &newDir1, *startDir;
const char *dirname_start = path;
if (path[0] == '/') {
if (path[0] == '/') {
curDir = &root;
workDirDepth = 0;
dirname_start++;
}
else
curDir = &workDir;
curDir = &workDir;
startDir = curDir;
@ -674,7 +674,7 @@ const char* CardReader::diveToFile(SdFile*& curDir, const char * const path, con
// Open curDir
if (!sub->open(curDir, dosSubdirname, O_READ)) {
SERIAL_ECHOLNPAIR(MSG_SD_OPEN_FILE_FAIL, dosSubdirname, ".");
return NULL;
return nullptr;
}
// Close curDir if not at starting-point