Function startsWithOp

source/text_handler.cpp:148–154

Returns true if the characters in the text as position represent the start of an Opcode.

// Returns true if the characters in the text as position represent
// the start of an Opcode.
bool startsWithOp(spv_text text, spv_position position) {
  if (text->length < position->index + 3) return false;
  char ch0 = text->str[position->index];
  char ch1 = text->str[position->index + 1];
  char ch2 = text->str[position->index + 2];
  return ('O' == ch0 && 'p' == ch1 && ('A' <= ch2 && ch2 <= 'Z'));
}

// Returns false if the the floating point encoding requires a bit width
// different from the given width. Write the expected bit width via *expected.