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| author | H. Peter Anvin <hpa@zytor.com> | 2017-02-20 00:36:53 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2017-02-20 00:36:53 -0800 |
| commit | 9b4b92b0143987b7e8989b01d96f92af27c1bbbe (patch) | |
| tree | ca33c7b990ccacc4f76b1a855c6bfd7de0d677d3 /include/compiler.h | |
| parent | 2902fbc1d8d084f10bfee4d18a01b90266c6adae (diff) | |
| download | nasm-9b4b92b0143987b7e8989b01d96f92af27c1bbbe.tar.gz | |
watcom.h: horrific hack to support OpenWatcom switch limitations
OpenWatcom still doesn't have proper support for 64-bit switch
statements. Hack around it in a truly vile way.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/compiler.h')
| -rw-r--r-- | include/compiler.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/compiler.h b/include/compiler.h index 061b3441..4cecf9ce 100644 --- a/include/compiler.h +++ b/include/compiler.h @@ -81,6 +81,7 @@ #include <stddef.h> #include <stdarg.h> #include <stdio.h> +#include <limits.h> #ifdef HAVE_SYS_TYPES_H # include <sys/types.h> @@ -248,4 +249,20 @@ char *strsep(char **, const char *); # define pure_func #endif +/* Watcom doesn't handle switch statements with 64-bit types, hack around it */ +#ifdef __WATCOM__ +# define BOGUS_CASE 0x76543210 + +static inline unsigned int watcom_switch_hack(uint64_t x) +{ + if (x > UINT_MAX) + return BOGUS_CASE; + else + return (unsigned int)x; +} + +# define switch(x) switch(watcom_switch_hack(x)) +# define default case BOGUS_CASE: default +#endif + #endif /* NASM_COMPILER_H */ |