[STDCXX-272] [LWG #625] std::string::find_first_of() returns 0 for the empty string

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.2, 4.1.3
• Fix Version/s: 4.2.0
• Component/s: 21. Strings

Environment

all

• Assignee: Farid Zaripov
• Reporter: Martin Sebor
• Created: 11/Aug/06 21:27
• Updated: 28/Aug/07 15:59
• Resolved: 28/Aug/07 15:58

Description

The program below is expected to run succeffully to completion (since the returned value must be less than the size of the string) but instead it aborts.

$ cat t.cpp && nice gmake t && ./t
#include <cassert>
#include <string>

int main ()
{
std::string::size_type xpos =
std::string ("").find_first_of ("cba", 0, std::string::npos);

assert (std::string::npos == xpos);
}

aCC -c -I/amd/devco/sebor/dev/stdlib/include/ansi -I/usr/include -D_RWSTDDEBUG -D_RWSTD_USE_CONFIG -I/amd/devco/sebor/dev/stdlib/include -I/build/sebor/aCC-3.70-11d/include -I/amd/devco/sebor/dev/stdlib/examples/include -Aa +nostl -g +d +w +W392 +W655 +W684 +W818 +W819 +W849 t.cpp
aCC t.o -o t -Aa +nostl -Wl,+s -Wl,+vnocompatwarnings -L/build/sebor/aCC-3.70-11d/lib -L/build/sebor/aCC-3.70-11d/lib -lstd11d -lm
ABORT instruction (core dumped)

Issue Links

• is part of: STDCXX-466 basic_string<>::rfind() and basic_string<>::find_xxx() methods throws length_error(), but shouldn't