diff options
Diffstat (limited to 'system/procps/strtod.patch')
| -rw-r--r-- | system/procps/strtod.patch | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/system/procps/strtod.patch b/system/procps/strtod.patch new file mode 100644 index 000000000..9cc974b1b --- /dev/null +++ b/system/procps/strtod.patch @@ -0,0 +1,115 @@ +From 4ed44ab58e27a9a09902b9c5b49df484842b6c9a Mon Sep 17 00:00:00 2001 +From: Dr. Werner Fink <werner@suse.de> +Date: Wed, 13 Jul 2016 20:08:51 +1000 +Subject: [PATCH] misc: fix strtod_nol_err tests + +A better way of implementing the string to double +conversion and a better way of testing it. + +Signed-off-by: Craig Small <csmall@enc.com.au> +--- + include/strutils.h | 2 +- + lib/strutils.c | 22 ++++++++++++---------- + lib/test_strtod_nol.c | 7 ++++--- + 4 files changed, 20 insertions(+), 18 deletions(-) + +diff --git a/include/strutils.h b/include/strutils.h +index 85a6192..a5a15c9 100644 +--- a/include/strutils.h ++++ b/include/strutils.h +@@ -7,6 +7,6 @@ + + extern long strtol_or_err(const char *str, const char *errmesg); + extern double strtod_or_err(const char *str, const char *errmesg); +-double strtod_nol_or_err(char *str, const char *errmesg); ++extern double strtod_nol_or_err(char *str, const char *errmesg); + + #endif +diff --git a/lib/strutils.c b/lib/strutils.c +index e5245db..e0632c4 100644 +--- a/lib/strutils.c ++++ b/lib/strutils.c +@@ -20,6 +20,8 @@ + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + ++#include <float.h> ++#include <math.h> + #include <stdlib.h> + #include <ctype.h> + +@@ -71,9 +73,9 @@ double strtod_or_err(const char *str, const char *errmesg) + */ + double strtod_nol_or_err(char *str, const char *errmesg) + { +- double num; ++ long double num; + const char *cp, *radix; +- double mult; ++ long double mult; + int negative = 0; + + if (str != NULL && *str != '\0') { +@@ -95,29 +97,29 @@ double strtod_nol_or_err(char *str, const char *errmesg) + mult=0.1; + while(isdigit(*radix)) { + radix++; +- mult *= 10; ++ mult *= 10.0; + } + while(isdigit(*cp)) { +- num += (*cp - '0') * mult; +- mult /= 10; ++ num += (long double)(*cp - '0') * mult; ++ mult /= 10.0; + cp++; + } + /* got the integers */ + if (*cp == '\0') +- return (negative?-num:num); ++ return (double)(negative?-num:num); + if (*cp != '.' && *cp != ',') + error(EXIT_FAILURE, EINVAL, "%s: '%s'", errmesg, str); + + cp++; + mult = 0.1; + while(isdigit(*cp)) { +- num += (*cp - '0') * mult; +- mult /= 10; ++ num += (long double)(*cp - '0') * mult; ++ mult /= 10.0; + cp++; + } + if (*cp == '\0') +- return (negative?-num:num); ++ return (double)(negative?-num:num); + } + error(EXIT_FAILURE, errno, "%s: '%s'", errmesg, str); +- return 0; ++ return (double)0; + } +diff --git a/lib/test_strtod_nol.c b/lib/test_strtod_nol.c +index 0be798c..736768a 100644 +--- a/lib/test_strtod_nol.c ++++ b/lib/test_strtod_nol.c +@@ -1,4 +1,5 @@ +- ++#include <float.h> ++#include <math.h> + #include <stdio.h> + #include <stdlib.h> + #include "strutils.h" +@@ -33,8 +34,8 @@ int main(int argc, char *argv[]) + double val; + + for(i=0; tests[i].string != NULL; i++) { +- if(strtod_nol_or_err(tests[i].string, "Cannot parse number") != +- tests[i].result) { ++ val = strtod_nol_or_err(tests[i].string, "Cannot parse number"); ++ if(fabs(tests[i].result - val) > DBL_EPSILON) { + fprintf(stderr, "FAIL: strtod_nol_or_err(\"%s\") != %f\n", + tests[i].string, tests[i].result); + return EXIT_FAILURE; +-- +libgit2 0.26.0 + |