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authorRusty Russell <rusty@rustcorp.com.au>2011-12-05 16:42:50 +1030
committerRusty Russell <rusty@rustcorp.com.au>2011-12-05 16:42:50 +1030
commit3b390b754eb8edd43678bdd080b06f102766683d (patch)
tree6420770fc0d3b02ca685342efb47ff70e301e5e1 /lib
parentab2c07b8f0dec6fd82884b7864a399201c3d2ce3 (diff)
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lib/ccan/compiler, ilog: IDEMPOTENT "idempotent does not mean what you think it means"
Actually, I don't even think it means that. But rename it to something which is sane. Thanks to David Gibson for reporting. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit e764d0a27d2b6748ea7d343042ec7d6dda1f6aae)
Diffstat (limited to 'lib')
-rw-r--r--lib/ccan/compiler/_info4
-rw-r--r--lib/ccan/compiler/compiler.h8
-rw-r--r--lib/ccan/ilog/ilog.h8
3 files changed, 10 insertions, 10 deletions
diff --git a/lib/ccan/compiler/_info b/lib/ccan/compiler/_info
index e42ebb0fb3..9f39453973 100644
--- a/lib/ccan/compiler/_info
+++ b/lib/ccan/compiler/_info
@@ -10,7 +10,7 @@
* For functions not called in fast paths (aka. cold functions)
* - PRINTF_FMT
* For functions which take printf-style parameters.
- * - IDEMPOTENT
+ * - CONST_FUNCTION
* For functions which return the same value for same parameters.
* - NEEDED
* For functions and variables which must be emitted even if unused.
@@ -18,7 +18,7 @@
* For functions and variables which need not be emitted if unused.
* - UNUSED
* For parameters which are not used.
- * - IS_COMPILE_CONSTANT
+ * - IS_COMPILE_CONSTANT()
* For using different tradeoffs for compiletime vs runtime evaluation.
*
* License: Public Domain
diff --git a/lib/ccan/compiler/compiler.h b/lib/ccan/compiler/compiler.h
index 74e0f1835c..fcb89c8f2a 100644
--- a/lib/ccan/compiler/compiler.h
+++ b/lib/ccan/compiler/compiler.h
@@ -61,18 +61,18 @@
#endif
#endif
-#ifndef IDEMPOTENT
+#ifndef CONST_FUNCTION
#if HAVE_ATTRIBUTE_CONST
/**
- * IDEMPOTENT - a function's return depends only on its argument
+ * CONST_FUNCTION - a function's return depends only on its argument
*
* This allows the compiler to assume that the function will return the exact
* same value for the exact same arguments. This implies that the function
* must not use global variables, or dereference pointer arguments.
*/
-#define IDEMPOTENT __attribute__((const))
+#define CONST_FUNCTION __attribute__((const))
#else
-#define IDEMPOTENT
+#define CONST_FUNCTION
#endif
#endif
diff --git a/lib/ccan/ilog/ilog.h b/lib/ccan/ilog/ilog.h
index 1a471c2d34..e52f04233c 100644
--- a/lib/ccan/ilog/ilog.h
+++ b/lib/ccan/ilog/ilog.h
@@ -25,7 +25,7 @@
* return 1U << ilog32(i-1);
* }
*/
-int ilog32(uint32_t _v) IDEMPOTENT;
+int ilog32(uint32_t _v) CONST_FUNCTION;
/**
* ilog32_nz - Integer binary logarithm of a non-zero 32-bit value.
@@ -44,7 +44,7 @@ int ilog32(uint32_t _v) IDEMPOTENT;
* return ilog32_nz(i) - 1;
* }
*/
-int ilog32_nz(uint32_t _v) IDEMPOTENT;
+int ilog32_nz(uint32_t _v) CONST_FUNCTION;
/**
* ilog64 - Integer binary logarithm of a 64-bit value.
@@ -56,7 +56,7 @@ int ilog32_nz(uint32_t _v) IDEMPOTENT;
* See Also:
* ilog64_nz(), ilog32()
*/
-int ilog64(uint64_t _v) IDEMPOTENT;
+int ilog64(uint64_t _v) CONST_FUNCTION;
/**
* ilog64_nz - Integer binary logarithm of a non-zero 64-bit value.
@@ -68,7 +68,7 @@ int ilog64(uint64_t _v) IDEMPOTENT;
* See Also:
* ilog64(), ilog32_nz()
*/
-int ilog64_nz(uint64_t _v) IDEMPOTENT;
+int ilog64_nz(uint64_t _v) CONST_FUNCTION;
/**
* STATIC_ILOG_32 - The integer logarithm of an (unsigned, 32-bit) constant.