X-Git-Url: https://git.distorted.org.uk/~mdw/mLib/blobdiff_plain/33e3ac9056f046affd69e3b8871275e5e2697aa4..3618811496a6d131fd4bffa19e262c521d39e819:/utils/macros.h

diff --git a/utils/macros.h b/utils/macros.h
index bcceecd..a5263e1 100644
--- a/utils/macros.h
+++ b/utils/macros.h
@@ -34,13 +34,15 @@
 
 /*----- Header files ------------------------------------------------------*/
 
+#include <assert.h>
+
 #ifndef MLIB_COMPILER_H
 #  include "compiler.h"
 #endif
 
 /*----- Miscellaneous utility macros --------------------------------------*/
 
-#define N(v) (sizeof(v)/sizeof(*v))
+#define N(v) (sizeof(v)/sizeof(*(v)))
 
 #define MLIB__STR(x) #x
 #define STR(x) MLIB__STR(x)
@@ -48,25 +50,58 @@
 #define MLIB__GLUE(x, y) x##y
 #define GLUE(x, y) MLIB__GLUE(x, y)
 
+#ifdef static_assert
+#  define STATIC_ASSERT(cond, msg) static_assert(cond, msg)
+#else
+#  define STATIC_ASSERT(cond, msg)					\
+	IGNORABLE extern char static_assert_failed[2*!!(cond) - 1]
+#endif
+
+/*----- String and character hacks ----------------------------------------*/
+
+#define CTYPE_HACK(func, ch) (func((unsigned char)(ch)))
+
+#define ISALNUM(ch) CTYPE_HACK(isalnum, ch)
+#define ISALPHA(ch) CTYPE_HACK(isalpha, ch)
+#define ISASCII(ch) CTYPE_HACK(isascii, ch)
+#define ISBLANK(ch) CTYPE_HACK(isblank, ch)
+#define ISCNTRL(ch) CTYPE_HACK(iscntrl, ch)
+#define ISDIGIT(ch) CTYPE_HACK(isdigit, ch)
+#define ISGRAPH(ch) CTYPE_HACK(isgraph, ch)
+#define ISLOWER(ch) CTYPE_HACK(islower, ch)
+#define ISPRINT(ch) CTYPE_HACK(isprint, ch)
+#define ISPUNCT(ch) CTYPE_HACK(ispunct, ch)
+#define ISSPACE(ch) CTYPE_HACK(isspace, ch)
+#define ISUPPER(ch) CTYPE_HACK(isupper, ch)
+#define ISXDIGIT(ch) CTYPE_HACK(isxdigit, ch)
+
+#define TOASCII(ch) CTYPE_HACK(toascii, ch)
+#define TOLOWER(ch) CTYPE_HACK(tolower, ch)
+#define TOUPPER(ch) CTYPE_HACK(toupper, ch)
+
+#define MEMCMP(x, op, y, n) (memcmp((x), (y), (n)) op 0)
+#define STRCMP(x, op, y) (strcmp((x), (y)) op 0)
+#define STRNCMP(x, op, y, n) (strncmp((x), (y), (n)) op 0)
+
 /*----- Compiler diagnostics ----------------------------------------------*/
 
 /* --- Compiler-specific definitions --- */
 
 #if GCC_VERSION_P(2, 5) || CLANG_VERSION_P(3, 3)
-#  define NORETURN __attribute__((noreturn))
-#  define PRINTF_LIKE(fix, aix) __attribute__((format(printf, fix, aix)))
-#  define SCANF_LIKE(fix, aix) __attribute__((format(scanf, fix, aix)))
-#  define IGNORABLE __attribute__((unused))
+#  define NORETURN __attribute__((__noreturn__))
+#  define PRINTF_LIKE(fix, aix) __attribute__((__format__(printf, fix, aix)))
+#  define SCANF_LIKE(fix, aix) __attribute__((__format__(scanf, fix, aix)))
+#  define IGNORABLE __attribute__((__unused__))
 #endif
 
 #if GCC_VERSION_P(4, 5) || CLANG_VERSION_P(3, 3)
-#  define DEPRECATED(msg) __attribute__((deprecated(msg)))
+#  define DEPRECATED(msg) __attribute__((__deprecated__(msg)))
 #elif GCC_VERSION_P(3, 1)
-#  define DEPRECATED(msg) __attribute__((deprecated))
+#  define DEPRECATED(msg) __attribute__((__deprecated__))
 #endif
 
 #if GCC_VERSION_P(4, 0) || CLANG_VERSION_P(3, 3)
-#  define EXECL_LIKE(ntrail) __attribute__((sentinel(ntrail)))
+#  define EXECL_LIKE(ntrail) __attribute__((__sentinel__(ntrail)))
 #endif
 
 #if CLANG_VERSION_P(3, 3)
@@ -180,6 +215,10 @@
 #  define SCANF_LIKE(fmtix, argix)
 #endif
 
+#ifndef NORETURN
+#  define NORETURN
+#endif
+
 #ifndef IGNORABLE
 #  define IGNORABLE
 #endif