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Annotation of coherent/d/bin/cc/c/n1/cc1sym.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Symbol table management.
        !             3:  */
        !             4: #ifdef vax
        !             5: #include "INC$LIB:cc1.h"
        !             6: #else
        !             7: #include "cc1.h"
        !             8: #endif
        !             9: 
        !            10: /*
        !            11:  * Lookup a global (or static external)
        !            12:  * identifier in the symbol table. Return a pointer
        !            13:  * to the symbol structure. If it is not there add
        !            14:  * it. This table exists only to save space and to make
        !            15:  * the TREE nodes all the same size.
        !            16:  */
        !            17: SYM *
        !            18: gidpool(id)
        !            19: char   *id;
        !            20: {
        !            21:        register SYM    *sp;
        !            22:        register char   *p;
        !            23:        register int    c;
        !            24:        register int    h;
        !            25: 
        !            26:        h = 0;
        !            27:        p = id;
        !            28:        while ((c = *p++) != '\0')
        !            29:                h += c;
        !            30:        h &= SHMASK;
        !            31:        sp = hash1[h];
        !            32:        while (sp != NULL) {
        !            33:                if (strcmp(id, sp->s_id) == 0)
        !            34:                        return (sp);
        !            35:                sp = sp->s_fp;
        !            36:        }
        !            37:        if ((sp=(SYM *)malloc(sizeof(SYM)+strlen(id)+1)) == NULL)
        !            38:                cnomem("gidpool");
        !            39:        sp->s_fp = hash1[h];
        !            40:        hash1[h] = sp;
        !            41:        strcpy(sp->s_id, id);
        !            42:        return (sp);
        !            43: }
        !            44: 
        !            45: #if OVERLAID
        !            46: /*
        !            47:  * Free all symbols.
        !            48:  */
        !            49: freegsym()
        !            50: {
        !            51:        register SYM    *sp1, *sp2;
        !            52:        register int    i;
        !            53: 
        !            54:        for (i=0; i<NSHASH; ++i) {
        !            55:                sp1 = hash1[i];
        !            56:                while (sp1 != NULL) {
        !            57:                        sp2 = sp1->s_fp;
        !            58:                        free((char *) sp1);
        !            59:                        sp1 = sp2;
        !            60:                }
        !            61:                hash1[i] = NULL;
        !            62:        }
        !            63: }
        !            64: #endif

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