aharvey Wed, 06 Apr 2011 10:23:06 +0000 Revision: http://svn.php.net/viewvc?view=revision&revision=309986
Log: Implement FR #54459 (Range function accuracy) by changing the way range() calculates values when used with floating point bounds/step. Bug: http://bugs.php.net/54459 (Open) Range function accuracy Changed paths: U php/php-src/branches/PHP_5_3/NEWS U php/php-src/branches/PHP_5_3/ext/standard/array.c A php/php-src/branches/PHP_5_3/ext/standard/tests/array/bug54459.phpt U php/php-src/trunk/ext/standard/array.c A php/php-src/trunk/ext/standard/tests/array/bug54459.phpt
Modified: php/php-src/branches/PHP_5_3/NEWS =================================================================== --- php/php-src/branches/PHP_5_3/NEWS 2011-04-06 10:22:19 UTC (rev 309985) +++ php/php-src/branches/PHP_5_3/NEWS 2011-04-06 10:23:06 UTC (rev 309986) @@ -9,6 +9,7 @@ - Core: . Fixed a crash inside dtor for error handling. (Ilia) + . Implemented FR #54459 (Range function accuracy). (Adam) . Fixed bug #54454 (substr_compare incorrectly reports equality in some cases). (Pierrick) . Fixed bug #54180 (parse_url() incorrectly parses path when ? in fragment). Modified: php/php-src/branches/PHP_5_3/ext/standard/array.c =================================================================== --- php/php-src/branches/PHP_5_3/ext/standard/array.c 2011-04-06 10:22:19 UTC (rev 309985) +++ php/php-src/branches/PHP_5_3/ext/standard/array.c 2011-04-06 10:23:06 UTC (rev 309986) @@ -1688,28 +1688,32 @@ } } else if (Z_TYPE_P(zlow) == IS_DOUBLE || Z_TYPE_P(zhigh) == IS_DOUBLE || is_step_double) { - double low, high; + double low, high, value; + long i; double_str: convert_to_double(zlow); convert_to_double(zhigh); low = Z_DVAL_P(zlow); high = Z_DVAL_P(zhigh); + i = 0; if (low > high) { /* Negative steps */ if (low - high < step || step <= 0) { err = 1; goto err; } - for (; low >= (high - DOUBLE_DRIFT_FIX); low -= step) { - add_next_index_double(return_value, low); + + for (value = low; value >= (high - DOUBLE_DRIFT_FIX); value = low - (++i * step)) { + add_next_index_double(return_value, value); } } else if (high > low) { /* Positive steps */ if (high - low < step || step <= 0) { err = 1; goto err; } - for (; low <= (high + DOUBLE_DRIFT_FIX); low += step) { - add_next_index_double(return_value, low); + + for (value = low; value <= (high + DOUBLE_DRIFT_FIX); value = low + (++i * step)) { + add_next_index_double(return_value, value); } } else { add_next_index_double(return_value, low); Added: php/php-src/branches/PHP_5_3/ext/standard/tests/array/bug54459.phpt =================================================================== --- php/php-src/branches/PHP_5_3/ext/standard/tests/array/bug54459.phpt (rev 0) +++ php/php-src/branches/PHP_5_3/ext/standard/tests/array/bug54459.phpt 2011-04-06 10:23:06 UTC (rev 309986) @@ -0,0 +1,215 @@ +--TEST-- +Bug #54459 (Range function accuracy) +--INI-- +precision=14 +--FILE-- +<?php +foreach (range(90, 100, .1) as $i => $v){ + echo $i, ' = ', $v, PHP_EOL; +} +foreach (range("90", "100", .1) as $i => $v){ + echo $i, ' = ', $v, PHP_EOL; +} +--EXPECT-- +0 = 90 +1 = 90.1 +2 = 90.2 +3 = 90.3 +4 = 90.4 +5 = 90.5 +6 = 90.6 +7 = 90.7 +8 = 90.8 +9 = 90.9 +10 = 91 +11 = 91.1 +12 = 91.2 +13 = 91.3 +14 = 91.4 +15 = 91.5 +16 = 91.6 +17 = 91.7 +18 = 91.8 +19 = 91.9 +20 = 92 +21 = 92.1 +22 = 92.2 +23 = 92.3 +24 = 92.4 +25 = 92.5 +26 = 92.6 +27 = 92.7 +28 = 92.8 +29 = 92.9 +30 = 93 +31 = 93.1 +32 = 93.2 +33 = 93.3 +34 = 93.4 +35 = 93.5 +36 = 93.6 +37 = 93.7 +38 = 93.8 +39 = 93.9 +40 = 94 +41 = 94.1 +42 = 94.2 +43 = 94.3 +44 = 94.4 +45 = 94.5 +46 = 94.6 +47 = 94.7 +48 = 94.8 +49 = 94.9 +50 = 95 +51 = 95.1 +52 = 95.2 +53 = 95.3 +54 = 95.4 +55 = 95.5 +56 = 95.6 +57 = 95.7 +58 = 95.8 +59 = 95.9 +60 = 96 +61 = 96.1 +62 = 96.2 +63 = 96.3 +64 = 96.4 +65 = 96.5 +66 = 96.6 +67 = 96.7 +68 = 96.8 +69 = 96.9 +70 = 97 +71 = 97.1 +72 = 97.2 +73 = 97.3 +74 = 97.4 +75 = 97.5 +76 = 97.6 +77 = 97.7 +78 = 97.8 +79 = 97.9 +80 = 98 +81 = 98.1 +82 = 98.2 +83 = 98.3 +84 = 98.4 +85 = 98.5 +86 = 98.6 +87 = 98.7 +88 = 98.8 +89 = 98.9 +90 = 99 +91 = 99.1 +92 = 99.2 +93 = 99.3 +94 = 99.4 +95 = 99.5 +96 = 99.6 +97 = 99.7 +98 = 99.8 +99 = 99.9 +100 = 100 +0 = 90 +1 = 90.1 +2 = 90.2 +3 = 90.3 +4 = 90.4 +5 = 90.5 +6 = 90.6 +7 = 90.7 +8 = 90.8 +9 = 90.9 +10 = 91 +11 = 91.1 +12 = 91.2 +13 = 91.3 +14 = 91.4 +15 = 91.5 +16 = 91.6 +17 = 91.7 +18 = 91.8 +19 = 91.9 +20 = 92 +21 = 92.1 +22 = 92.2 +23 = 92.3 +24 = 92.4 +25 = 92.5 +26 = 92.6 +27 = 92.7 +28 = 92.8 +29 = 92.9 +30 = 93 +31 = 93.1 +32 = 93.2 +33 = 93.3 +34 = 93.4 +35 = 93.5 +36 = 93.6 +37 = 93.7 +38 = 93.8 +39 = 93.9 +40 = 94 +41 = 94.1 +42 = 94.2 +43 = 94.3 +44 = 94.4 +45 = 94.5 +46 = 94.6 +47 = 94.7 +48 = 94.8 +49 = 94.9 +50 = 95 +51 = 95.1 +52 = 95.2 +53 = 95.3 +54 = 95.4 +55 = 95.5 +56 = 95.6 +57 = 95.7 +58 = 95.8 +59 = 95.9 +60 = 96 +61 = 96.1 +62 = 96.2 +63 = 96.3 +64 = 96.4 +65 = 96.5 +66 = 96.6 +67 = 96.7 +68 = 96.8 +69 = 96.9 +70 = 97 +71 = 97.1 +72 = 97.2 +73 = 97.3 +74 = 97.4 +75 = 97.5 +76 = 97.6 +77 = 97.7 +78 = 97.8 +79 = 97.9 +80 = 98 +81 = 98.1 +82 = 98.2 +83 = 98.3 +84 = 98.4 +85 = 98.5 +86 = 98.6 +87 = 98.7 +88 = 98.8 +89 = 98.9 +90 = 99 +91 = 99.1 +92 = 99.2 +93 = 99.3 +94 = 99.4 +95 = 99.5 +96 = 99.6 +97 = 99.7 +98 = 99.8 +99 = 99.9 +100 = 100 Modified: php/php-src/trunk/ext/standard/array.c =================================================================== --- php/php-src/trunk/ext/standard/array.c 2011-04-06 10:22:19 UTC (rev 309985) +++ php/php-src/trunk/ext/standard/array.c 2011-04-06 10:23:06 UTC (rev 309986) @@ -1692,28 +1692,32 @@ } } else if (Z_TYPE_P(zlow) == IS_DOUBLE || Z_TYPE_P(zhigh) == IS_DOUBLE || is_step_double) { - double low, high; + double low, high, value; + long i; double_str: convert_to_double(zlow); convert_to_double(zhigh); low = Z_DVAL_P(zlow); high = Z_DVAL_P(zhigh); + i = 0; if (low > high) { /* Negative steps */ if (low - high < step || step <= 0) { err = 1; goto err; } - for (; low >= (high - DOUBLE_DRIFT_FIX); low -= step) { - add_next_index_double(return_value, low); + + for (value = low; value >= (high - DOUBLE_DRIFT_FIX); value = low - (++i * step)) { + add_next_index_double(return_value, value); } } else if (high > low) { /* Positive steps */ if (high - low < step || step <= 0) { err = 1; goto err; } - for (; low <= (high + DOUBLE_DRIFT_FIX); low += step) { - add_next_index_double(return_value, low); + + for (value = low; value <= (high + DOUBLE_DRIFT_FIX); value = low + (++i * step)) { + add_next_index_double(return_value, value); } } else { add_next_index_double(return_value, low); Added: php/php-src/trunk/ext/standard/tests/array/bug54459.phpt =================================================================== --- php/php-src/trunk/ext/standard/tests/array/bug54459.phpt (rev 0) +++ php/php-src/trunk/ext/standard/tests/array/bug54459.phpt 2011-04-06 10:23:06 UTC (rev 309986) @@ -0,0 +1,215 @@ +--TEST-- +Bug #54459 (Range function accuracy) +--INI-- +precision=14 +--FILE-- +<?php +foreach (range(90, 100, .1) as $i => $v){ + echo $i, ' = ', $v, PHP_EOL; +} +foreach (range("90", "100", .1) as $i => $v){ + echo $i, ' = ', $v, PHP_EOL; +} +--EXPECT-- +0 = 90 +1 = 90.1 +2 = 90.2 +3 = 90.3 +4 = 90.4 +5 = 90.5 +6 = 90.6 +7 = 90.7 +8 = 90.8 +9 = 90.9 +10 = 91 +11 = 91.1 +12 = 91.2 +13 = 91.3 +14 = 91.4 +15 = 91.5 +16 = 91.6 +17 = 91.7 +18 = 91.8 +19 = 91.9 +20 = 92 +21 = 92.1 +22 = 92.2 +23 = 92.3 +24 = 92.4 +25 = 92.5 +26 = 92.6 +27 = 92.7 +28 = 92.8 +29 = 92.9 +30 = 93 +31 = 93.1 +32 = 93.2 +33 = 93.3 +34 = 93.4 +35 = 93.5 +36 = 93.6 +37 = 93.7 +38 = 93.8 +39 = 93.9 +40 = 94 +41 = 94.1 +42 = 94.2 +43 = 94.3 +44 = 94.4 +45 = 94.5 +46 = 94.6 +47 = 94.7 +48 = 94.8 +49 = 94.9 +50 = 95 +51 = 95.1 +52 = 95.2 +53 = 95.3 +54 = 95.4 +55 = 95.5 +56 = 95.6 +57 = 95.7 +58 = 95.8 +59 = 95.9 +60 = 96 +61 = 96.1 +62 = 96.2 +63 = 96.3 +64 = 96.4 +65 = 96.5 +66 = 96.6 +67 = 96.7 +68 = 96.8 +69 = 96.9 +70 = 97 +71 = 97.1 +72 = 97.2 +73 = 97.3 +74 = 97.4 +75 = 97.5 +76 = 97.6 +77 = 97.7 +78 = 97.8 +79 = 97.9 +80 = 98 +81 = 98.1 +82 = 98.2 +83 = 98.3 +84 = 98.4 +85 = 98.5 +86 = 98.6 +87 = 98.7 +88 = 98.8 +89 = 98.9 +90 = 99 +91 = 99.1 +92 = 99.2 +93 = 99.3 +94 = 99.4 +95 = 99.5 +96 = 99.6 +97 = 99.7 +98 = 99.8 +99 = 99.9 +100 = 100 +0 = 90 +1 = 90.1 +2 = 90.2 +3 = 90.3 +4 = 90.4 +5 = 90.5 +6 = 90.6 +7 = 90.7 +8 = 90.8 +9 = 90.9 +10 = 91 +11 = 91.1 +12 = 91.2 +13 = 91.3 +14 = 91.4 +15 = 91.5 +16 = 91.6 +17 = 91.7 +18 = 91.8 +19 = 91.9 +20 = 92 +21 = 92.1 +22 = 92.2 +23 = 92.3 +24 = 92.4 +25 = 92.5 +26 = 92.6 +27 = 92.7 +28 = 92.8 +29 = 92.9 +30 = 93 +31 = 93.1 +32 = 93.2 +33 = 93.3 +34 = 93.4 +35 = 93.5 +36 = 93.6 +37 = 93.7 +38 = 93.8 +39 = 93.9 +40 = 94 +41 = 94.1 +42 = 94.2 +43 = 94.3 +44 = 94.4 +45 = 94.5 +46 = 94.6 +47 = 94.7 +48 = 94.8 +49 = 94.9 +50 = 95 +51 = 95.1 +52 = 95.2 +53 = 95.3 +54 = 95.4 +55 = 95.5 +56 = 95.6 +57 = 95.7 +58 = 95.8 +59 = 95.9 +60 = 96 +61 = 96.1 +62 = 96.2 +63 = 96.3 +64 = 96.4 +65 = 96.5 +66 = 96.6 +67 = 96.7 +68 = 96.8 +69 = 96.9 +70 = 97 +71 = 97.1 +72 = 97.2 +73 = 97.3 +74 = 97.4 +75 = 97.5 +76 = 97.6 +77 = 97.7 +78 = 97.8 +79 = 97.9 +80 = 98 +81 = 98.1 +82 = 98.2 +83 = 98.3 +84 = 98.4 +85 = 98.5 +86 = 98.6 +87 = 98.7 +88 = 98.8 +89 = 98.9 +90 = 99 +91 = 99.1 +92 = 99.2 +93 = 99.3 +94 = 99.4 +95 = 99.5 +96 = 99.6 +97 = 99.7 +98 = 99.8 +99 = 99.9 +100 = 100
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