Generator names should be passed as const char* and not as char*.

[sprintersb]

Functions like unif01_CreateExternGen01 have currently a prototype of

unif01_Gen *unif01_CreateExternGen01 (char *name, double (*f_U01)(void))

i.e. they are alloed to change the string pointed to by name. This is not expected, and these functions actually DO NOT change the contents of name. Therefore, name should be const qualified:

unif01_Gen *unif01_CreateExternGen01 (const char *name, double (*f_U01)(void))

As a simple test case, consider

unsigned myrand (void)
{
static unsigned u;
return ++u;
}

const char myrand_name[] = "myrand";

unif01_Gen *gen_myrand (void)
{
return unif01_CreateExternGenBits (myrand_name, myrand);
}

testu01.c: In function 'gen_myrand':
testu01.c:13:40: warning: passing argument 1 of 'unif01_CreateExternGenBits' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
13 | return unif01_CreateExternGenBits (myrand_name, myrand);
| ^~~~~~~~~~~
In file included from testu01.c:1:
$prefix/include/unif01.h:147:47: note: expected 'char *' but argument is of type 'const char *'
147 | unif01_Gen *unif01_CreateExternGenBits (char *name,
| ~~~~~~^~~~

* testu01/unif01.c (unif01_CreateExternGen01) (unif01_CreateExternGenBits, unif01_CreateExternGenBitsL): Pass name as const char* instead of as char*.
* testu01/unif01.tex: Same.