stdin_get_contents()

Load a file from stdin (or similar stream-like file) into a buffer. More...

Functions
template<class ContiguousContainer>
void	c4::yml::stdin_get_contents (ContiguousContainer *cont, FILE *f=stdin)
	load a file from stdin (or similar stream-like file) and return a newly created ContiguousContainer with the file contents
template<class ContiguousContainer>
ContiguousContainer	c4::yml::stdin_get_contents (FILE *f=stdin)
	load a file from stdin and return a newly created ContiguousContainer with the file contents

Detailed Description

Load a file from stdin (or similar stream-like file) into a buffer.

Function Documentation

stdin_get_contents() [1/2]

template<class ContiguousContainer>

void c4::yml::stdin_get_contents	(	ContiguousContainer *	cont,
		FILE *	f = stdin )

load a file from stdin (or similar stream-like file) and return a newly created ContiguousContainer with the file contents

Definition at line 193 of file file.hpp.

{
    using I = typename ContiguousContainer::size_type;
    using T = typename ContiguousContainer::value_type;
    int c;
    I pos = 0;
    I num_bytes = 128;
    I elmsz = static_cast<I>(sizeof(T));
    I sz = (num_bytes + elmsz - 1) / elmsz; // round up to next multiple of elmsz
    num_bytes = sz * elmsz;
    cont->resize(sz);
    unsigned char *buf = reinterpret_cast<unsigned char*>(&(*cont)[0]); // NOLINT
    while((c = fgetc(f)) != EOF)
    {
        if(pos == num_bytes)
        {
            num_bytes = 2 * num_bytes;
            if(num_bytes % sizeof(T)) goto errsize; // NOLINT // LCOV_EXCL_LINE
            cont->resize(num_bytes / sizeof(T));
            buf = reinterpret_cast<unsigned char*>(&(*cont)[0]); // NOLINT
        }
        buf[pos++] = static_cast<unsigned char>(c);
    }
    if(pos % sizeof(T))
        goto errsize; // NOLINT
    cont->resize(pos / sizeof(T));
    return;
errsize:
    _RYML_ERR_BASIC("file size is not multiple of element size");
}

stdin_get_contents() [2/2]

template<class ContiguousContainer>

ContiguousContainer c4::yml::stdin_get_contents

(

FILE *

f = stdin

)

load a file from stdin and return a newly created ContiguousContainer with the file contents

Definition at line 227 of file file.hpp.

{
    ContiguousContainer cc;
    stdin_get_contents(&cc, f);
    return cc;
}