XUtils string related updates

- allow count out-parameter of String_split() to be NULL
- introduce xStrndup()
- do not allow NULL pointers passed to String_eq()
  it is not used in any code
- implement String_startsWith(), String_contains_i() and String_eq()
  as inline header functions
- adjust several conversion issues

1 files changed, 4 insertions, 7 deletions

diff --git a/Settings.c b/Settings.c
index ac8321a0..879d14fb 100644
--- a/Settings.c
+++ b/Settings.c
@@ -31,16 +31,14 @@ void Settings_delete(Settings* this) {
 
 static void Settings_readMeters(Settings* this, char* line, int column) {
    char* trim = String_trim(line);
-   int nIds;
-   char** ids = String_split(trim, ' ', &nIds);
+   char** ids = String_split(trim, ' ', NULL);
    free(trim);
    this->columns[column].names = ids;
 }
 
 static void Settings_readMeterModes(Settings* this, char* line, int column) {
    char* trim = String_trim(line);
-   int nIds;
-   char** ids = String_split(trim, ' ', &nIds);
+   char** ids = String_split(trim, ' ', NULL);
    free(trim);
    int len = 0;
    for (int i = 0; ids[i]; i++) {
@@ -94,8 +92,7 @@ static void Settings_defaultMeters(Settings* this, int initialCpuCount) {
 
 static void readFields(ProcessField* fields, int* flags, const char* line) {
    char* trim = String_trim(line);
-   int nIds;
-   char** ids = String_split(trim, ' ', &nIds);
+   char** ids = String_split(trim, ' ', NULL);
    free(trim);
    int i, j;
    *flags = 0;
@@ -126,7 +123,7 @@ static bool Settings_read(Settings* this, const char* fileName, int initialCpuCo
       if (!line) {
          break;
       }
-      int nOptions;
+      size_t nOptions;
       char** option = String_split(line, '=', &nOptions);
       free (line);
       if (nOptions < 2) {