utils: add/replace string equality macros

It's more tidy and less error prone, since we use strcasecmp == 0 a lot.
We replace strcmp == 0 by streq, strcasecmp == 0 by istreq,
uStrCasePrefix by istreq_prefix and uDupString by strdup_safe.

Signed-off-by: Ran Benita <ran234@gmail.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/atom.c b/src/atom.c
index c5e0606..fde4d6d 100644
--- a/src/atom.c
+++ b/src/atom.c
@@ -136,8 +136,7 @@ atom_text(struct atom_table *table, xkb_atom_t atom)
 char *
 atom_strdup(struct atom_table *table, xkb_atom_t atom)
 {
-    const char *ret = atom_text(table, atom);
-    return ret ? strdup(ret) : NULL;
+    return strdup_safe(atom_text(table, atom));
 }
 
 /*