src-test2/bin/expr/expr.y, branch release/7.2.0

src-test2/bin/expr/expr.y, branch release/7.2.0_cvs FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F7.2.0_cvs 2009-05-01T02:51:58Z Copy releng/7.2 to release/7.2.0 for FreeBSD 7.2-RELEASE. 2009-05-01T02:51:58Z Ken Smith kensmith@FreeBSD.org 2009-05-01T02:51:58Z urn:sha1:b205d83df7763ca1f099bce5ac12a05862a626c4 Approved by: re (implicit) This commit was manufactured to restore the state of the 7.2-RELEASE image. Correct typos containing my login name (plus one more in expr.y). 2007-02-18T19:48:59Z Ceri Davies ceri@FreeBSD.org 2007-02-18T19:48:59Z urn:sha1:e1854a84ad9fb9b70e1b9ca134d93251ec9a0070 Found courtesy of a recursive grep in the wrong directory. /*- or .\"- or #- to begin license clauses. 2005-01-10T08:39:26Z Warner Losh imp@FreeBSD.org 2005-01-10T08:39:26Z urn:sha1:9ddb49cbe45441fa3f3a10f6dd355e9956480b5f Create a small library function, check_utility_compat(3), to determine 2002-10-28T00:15:43Z Garrett Wollman wollman@FreeBSD.org 2002-10-28T00:15:43Z urn:sha1:c9885518de2f8c1da3530130cbd3a5ed88f09a28 whether a named utility should behave in FreeBSD 4.x-compatible mode or in a standard mode (default standard). The configuration is done malloc(3)-style, with either an environment variable or a symlink. Update expr(1) to use this new interface. EXPR_COMPAT should imply -e, since there is no way to specify it otherwise, 2002-05-11T03:08:12Z Garrett Wollman wollman@FreeBSD.org 2002-05-11T03:08:12Z urn:sha1:94a48596a3d168f80462a7f2be9ece9dc0da09f8 and -e reflects the historic behavior of FreeBSD's expr. The response to my POSIX interpretation request says that `expr' 2002-05-10T22:59:29Z Garrett Wollman wollman@FreeBSD.org 2002-05-10T22:59:29Z urn:sha1:1393277e29a175200ee09ebbf93e345c61ac60f4 is required to be oblivious to overflow and to use the data type `long'. (Division by zero is undefined in ISO C so it's still OK to check for it here.) Add a new `-e' flag to get the old, more useful behavior. Provide an environment variabloe, EXPR_COMPAT, which disables option 2002-04-22T21:23:09Z Garrett Wollman wollman@FreeBSD.org 2002-04-22T21:23:09Z urn:sha1:96ab7da385302856ba4be4d8ce71e755ad4278c7 parsing for compatibility with old implementations. Make expr POSIX-compliant, and fix some bugs. Specifically: 2002-03-22T20:18:26Z Garrett Wollman wollman@FreeBSD.org 2002-03-22T20:18:26Z urn:sha1:f07e42470f25baa8218e019282bb620a2f144697 - expr must conform to the Utility Syntax Guidelines, so use getopt() to eat the (non-existent) options. - Use the Standard type intmax_t for arithmetic. - If an argument cannot be *completely* converted to an integer, then it is a string. Additionally make some style cleanups near the modified lines. This utility is still not completely style-compliant. o __P has been reoved 2002-02-02T06:36:49Z Warner Losh imp@FreeBSD.org 2002-02-02T06:36:49Z urn:sha1:7669d0fc4f7d3869e27f94843ca120399a4825e9 o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o gc some #ifdef sun ... #endif code Approved by: arch@, new style(9) Fix warnings to compile with WARNS=2 on i386 and alpha 2001-05-26T20:45:25Z Kris Kennaway kris@FreeBSD.org 2001-05-26T20:45:25Z urn:sha1:3d06e95d3568a54052e903159808fea00a2d1e31 Reviewed by: bde