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Add coments to places where STATIC_ASSERT is used.

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Update issue 96
Status: FixedInGit
This commit is contained in:
Petteri Aimonen
2014-02-04 20:34:57 +02:00
parent a2f8112166
commit 879860be19
2 changed files with 38 additions and 14 deletions
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16
pb.h
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@@ -96,8 +96,14 @@
#endif
/* Compile-time assertion, used for checking compatible compilation options.
* If this fails on your compiler for some reason, use #define STATIC_ASSERT
* to disable it. */
* If this does not work properly on your compiler, use #define STATIC_ASSERT
* to disable it.
*
* But before doing that, check carefully the error message / place where it
* comes from to see if the error has a real cause. Unfortunately the error
* message is not always very clear to read, but you can see the reason better
* in the place where the STATIC_ASSERT macro was called.
*/
#ifndef STATIC_ASSERT
#define STATIC_ASSERT(COND,MSG) typedef char STATIC_ASSERT_MSG(MSG, __LINE__, __COUNTER__)[(COND)?1:-1];
#define STATIC_ASSERT_MSG(MSG, LINE, COUNTER) STATIC_ASSERT_MSG_(MSG, LINE, COUNTER)
@@ -210,7 +216,11 @@ struct _pb_field_t {
PB_PACKED_STRUCT_END
/* Make sure that the standard integer types are of the expected sizes.
* All kinds of things may break otherwise.. atleast all fixed* types. */
* All kinds of things may break otherwise.. atleast all fixed* types.
*
* If you get errors here, it probably means that your stdint.h is not
* correct for your platform.
*/
STATIC_ASSERT(sizeof(int8_t) == 1, INT8_T_WRONG_SIZE)
STATIC_ASSERT(sizeof(uint8_t) == 1, UINT8_T_WRONG_SIZE)
STATIC_ASSERT(sizeof(int16_t) == 2, INT16_T_WRONG_SIZE)