Texture does not wrap where expected - opengl

Question

I am generating a bitmap (1 byte per pixel) and attempting to use it for alpha blending. I am successfully using the bitmap, but it appears that the texture does not wrap lines as I expect.
When I use the following code, it wraps where I would expect, given the input image. I get the set of Xs that I expect.
std::ofstream file{ R"(FileName.txt)" };
file << "width: " << gs.width() << "\theight: " << gs.height() << "\n";
for (int i = 0; i < gs.height(); ++i)
{
for (int j = 0; j < gs.width(); ++j)
{
file << ((gs.alpha()[j + i * gs.width()]) ? 'X' : ' ');
}
file << "\n";
}
When I load the texture it appears that the width of the texture does not match gs.width(), since it wraps oddly.
This is the code that I use to create the texture and load it with the bitmap.
GLuint tex;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, gs.width(), gs.height(), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, gs.alpha());
Can anyone suggest what I might be doing wrong?