X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fmacro.h;h=0d3ff1cda578808ec2cb225ee4d97ce5ba213099;hb=c51cf05646a11c65daf65c1123c77efb068f4f7b;hp=2f151bcc8cb143f5c80d7d33c7de81a2d4c3236f;hpb=a3dc35472f3a48ea8445ad7a943e2ff253170417;p=elogind.git

diff --git a/src/shared/macro.h b/src/shared/macro.h
index 2f151bcc8..0d3ff1cda 100644
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@@ -186,6 +186,8 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) {
 
 #define char_array_0(x) x[sizeof(x)-1] = 0;
 
+#define hasprefix(s, prefix) (memcmp(s, prefix, strlen(prefix)) == 0)
+
 #define IOVEC_SET_STRING(i, s)                  \
         do {                                    \
                 struct iovec *_i = &(i);        \
@@ -271,7 +273,7 @@ do {                                                                    \
   * the const magic to the type, otherwise the compiler warns about
   * signed/unsigned comparison, because the magic can be 32 bit unsigned.
  */
-#define F_TYPE_CMP(a, b) (a == (typeof(a)) b)
+#define F_TYPE_EQUAL(a, b) (a == (typeof(a)) b)
 
 
 /* Returns the number of chars needed to format variables of the
@@ -284,4 +286,7 @@ do {                                                                    \
             sizeof(type) <= 4 ? 10 :                                    \
             sizeof(type) <= 8 ? 20 : sizeof(int[-2*(sizeof(type) > 8)])))
 
+#define SET_FLAG(v, flag, b) \
+        (v) = (b) ? ((v) | (flag)) : ((v) & ~(flag))
+
 #include "log.h"