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bc: unbreak read(), remove checks for nested read()

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function                                             old     new   delta
zbc_parse_pushSTR                                      -      65     +65
common_parse_expr                                      -      32     +32
bc_error_nested_read_call                             10       -     -10
bc_parse_expr_empty_ok                              1977    1963     -14
zdc_parse_expr                                       635     615     -20
zcommon_parse_expr                                    32       -     -32
zbc_program_exec                                    4064    4023     -41
bc_parse_pushSTR                                      65       -     -65
------------------------------------------------------------------------------
(add/remove: 2/3 grow/shrink: 0/3 up/down: 97/-182)           Total: -85 bytes
   text	   data	    bss	    dec	    hex	filename
 981661	    485	   7296	 989442	  f1902	busybox_old
 981540	    485	   7296	 989321	  f1889	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2018-12-22 01:34:10 +01:00
parent 1dc4de9d9b
commit 8c1e723596
2 changed files with 41 additions and 38 deletions
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15
testsuite/bc.tests
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@@ -31,6 +31,21 @@ testing "bc string 1" \
"STR\n" \
"" "\"STR\n\""
testing "bc read() 4<EOF>" \
"bc input" \
"4\n" \
"read();halt" "4"
testing "bc read()^2" \
"bc input" \
"16\n" \
"read()^2;halt" "4\n"
testing "bc read()*read()" \
"bc input" \
"20\n" \
"read()*read();halt" "4\n5"
testing "bc if 0 else" \
"bc" \
"2\n9\n" \