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Re-introduced Yosys::readsome() helper function

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(f.read() + f.gcount() made problems with lines > 16kB)
This commit is contained in:
Clifford Wolf 2014-10-23 10:47:21 +02:00
parent 750c615e7f
commit c5eb5e56b8
6 changed files with 25 additions and 21 deletions
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16
kernel/yosys.cc
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@ -97,6 +97,22 @@ std::string vstringf(const char *fmt, va_list ap)
return string;
}
int readsome(std::istream &f, char *s, int n)
{
int rc = f.readsome(s, n);
// f.readsome() sometimes returns 0 on a non-empty stream..
if (rc == 0) {
int c = f.get();
if (c != EOF) {
*s = c;
rc = 1;
}
}
return rc;
}
std::string next_token(std::string &text, const char *sep)
{
size_t pos_begin = text.find_first_not_of(sep);

1
kernel/yosys.h
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@ -127,6 +127,7 @@ namespace RTLIL {
std::string stringf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
std::string vstringf(const char *fmt, va_list ap);
int readsome(std::istream &f, char *s, int n);
std::string next_token(std::string &text, const char *sep);
bool patmatch(const char *pattern, const char *string);
int run_command(const std::string &command, std::function<void(const std::string&)> process_line = std::function<void(const std::string&)>());