diff options
author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 1998-01-28 15:47:05 -0200 |
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committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 1998-01-28 15:47:05 -0200 |
commit | 46968b8ffa232a642cdc2f77cb02c7aa61ab9b89 (patch) | |
tree | 6538d169b364baa4e3735a85bf9bf5ccd84ff65b /ldo.c | |
parent | 6cdf0d8768afb16faaf6c020d6798a4588be2f74 (diff) | |
download | lua-github-46968b8ffa232a642cdc2f77cb02c7aa61ab9b89.tar.gz |
"volatile is the only reliable way to ensure that a local variable
retains the value it had at the time of the call to longjmp"
Diffstat (limited to 'ldo.c')
-rw-r--r-- | ldo.c | 12 |
1 files changed, 6 insertions, 6 deletions
@@ -1,5 +1,5 @@ /* -** $Id: ldo.c,v 1.21 1998/01/07 16:26:48 roberto Exp roberto $ +** $Id: ldo.c,v 1.22 1998/01/27 21:21:27 roberto Exp roberto $ ** Stack and Call structure of Lua ** See Copyright Notice in lua.h */ @@ -288,8 +288,8 @@ int luaD_protectedrun (int nResults) { jmp_buf myErrorJmp; int status; - struct C_Lua_Stack oldCLS = L->Cstack; - jmp_buf *oldErr = L->errorJmp; + volatile struct C_Lua_Stack oldCLS = L->Cstack; + jmp_buf *volatile oldErr = L->errorJmp; L->errorJmp = &myErrorJmp; if (setjmp(myErrorJmp) == 0) { do_callinc(nResults); @@ -310,10 +310,10 @@ int luaD_protectedrun (int nResults) */ static int protectedparser (ZIO *z, int bin) { - int status; - TProtoFunc *tf; + volatile int status; + TProtoFunc *volatile tf; jmp_buf myErrorJmp; - jmp_buf *oldErr = L->errorJmp; + jmp_buf *volatile oldErr = L->errorJmp; L->errorJmp = &myErrorJmp; if (setjmp(myErrorJmp) == 0) { tf = bin ? luaU_undump1(z) : luaY_parser(z); |