3 Commits

Author	SHA1	Message	Date
Jilles Tjoelker	aac5464b61	sh: Restore $((x)) error checking after fix for $((-9223372036854775808)) ... SVN r342880 was designed to fix $((-9223372036854775808)) and things like $((0x8000000000000000)) but also broke error detection for values of variables without dollar sign ($((x))). For compatibility, overflow in plain literals continues to be ignored and the value is clamped to the boundary (except 9223372036854775808 which is changed to -9223372036854775808). Reviewed by: se (although he would like error checking to be removed) MFC after: 2 weeks X-MFC-with: r342880 Differential Revision: https://reviews.freebsd.org/D18926	2019-02-10 22:23:05 +00:00
Jilles Tjoelker	22ea47ec90	sh: Fix compiler warnings related to duplicate or missing declarations.	2015-03-01 21:46:55 +00:00
Jilles Tjoelker	6262b84eee	sh: Import arithmetic expression code from dash. ... New features: * proper lazy evaluation of || and && * ?: ternary operator * executable is considerably smaller (8K on i386) because lex and yacc are no longer used Differences from dash: * arith_t instead of intmax_t * imaxdiv() not used * unset or null variables default to 0 * let/exp builtin (undocumented, will probably be removed later) Obtained from: dash	2011-02-08 23:18:06 +00:00