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MDEV-22545: my_vsnprintf behaves not as in C standard

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Added parameter %T for string which should be visibly truncated.
This commit is contained in:
Oleksandr Byelkin
2020-05-20 13:34:51 +02:00
parent d8e2fa0c49
commit cf52dd174e
10 changed files with 267 additions and 223 deletions
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6
include/mysql/service_my_snprintf.h
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@@ -55,7 +55,8 @@
Supported formats are 's' (null pointer is accepted, printed as
"(null)"), 'b' (extension, see below), 'c', 'd', 'i', 'u', 'x', 'o',
'X', 'p' (works as 0x%x), 'f', 'g', 'M' (extension, see below).
'X', 'p' (works as 0x%x), 'f', 'g', 'M' (extension, see below),
'T' (extension, see below).
Standard syntax for positional arguments $n is supported.
@@ -69,6 +70,9 @@
Format 'M': takes one integer, prints this integer, space, double quote
error message, double quote. In other words
printf("%M", n) === printf("%d \"%s\"", n, strerror(n))
Format 'T': takes string and print it like s but if the strints should be
truncated puts "..." at the end.
*/
#ifdef __cplusplus