Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - arith1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30316-0578a48613) Lines: 2080 2301 90.4 % Date: 2025-06-02 09:19:41 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	178480
Fl_2gener_pre_i	65765
Fl_2powu	4287651
Fl_2powu_pre	12373714
Fl_lgener_pre_all	142382
Fl_log	132375
Fl_log_Fp	0
Fl_log_naive	132375
Fl_log_naive_pre	26303
Fl_log_pre	26701
Fl_order	542742
Fl_powers	296050
Fl_powers_pre	12738160
Fl_powu	139931183
Fl_powu_pre	151614560
Fl_sqrt	12299865
Fl_sqrt_i	12420596
Fl_sqrt_pre	21234668
Fl_sqrt_pre_i	33723241
Fl_sqrtl	0
Fl_sqrtl_pre	223312
Fl_sqrtl_raw	226153
Fl_sqrtn	232520
Fl_sqrtn_pre	232520
FpV_prod	497
Fp_2gener	3208
Fp_2gener_all	5860
Fp_2gener_i	19392
Fp_easylog	8466729
Fp_factored_order	70
Fp_gausssum	309
Fp_invgen	5888535
Fp_invmBarrett	14317
Fp_log	3928350
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	57945
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30248
Fp_log_use_index	4665996
Fp_order	132161
Fp_pow	36220779
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346197
Fp_powu	1752924
Fp_rem_mBarrett	8571427
Fp_rootsof1	785
Fp_select_red	871819
Fp_sqrt	4832519
Fp_sqrt_i	4886939
Fp_sqrt_ii	75725
Fp_sqrtn	173541
Fp_sqrts	19210
Qsfcont	3137344
ZMV_producttree	0
ZM_nv_mod_tree	236688
ZM_nv_mod_tree_t	242145
ZT_sqr	13442023
ZVV_nv_mod_tree	5457
ZV_allpnqn	894782
ZV_chinese	5141
ZV_chinese_center	157237
ZV_chinese_tree	39725104
ZV_chinesetree	2599909
ZV_invdivexact	2599911
ZV_nv_mod_tree	1273550
ZV_producttree	2603845
ZV_sqr	2599914
ZXC_nv_mod_tree	4456
ZXM_nv_mod_tree	453
ZXX_nv_mod_tree	86865
ZX_nv_mod_tree	2414837
Z_ZV_mod	0
Z_ZV_mod_tree	57187900
Z_chinese	2142
Z_chinese_all	267621
Z_chinese_coprime	543799
Z_chinese_post	3007171
Z_chinese_pre	271339
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175565
_Fp_equal0	260724
_Fp_inv	34307
_Fp_mul	14130214
_Fp_neg	1086846
_Fp_one	47162
_Fp_pow	27873891
_Fp_rand	167
_Fp_red	889913
_Fp_rmul	575346
_Fp_s	19075
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	9782393
_mul2_remii	3529366
_mul2_remiibar	1865117
_mul_montred	6730580
_mul_remii	1546277
_mul_remiibar	739262
_psi	1714
_sqr_montred	64228170
_sqr_remii	23720945
_sqr_remiibar	7832165
addifsmooth1	2163
addifsmooth2	83825
bestappr	104858
bestapprPade	119
bestapprPade0	126
bestappr_Q	2237226
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1241366
bestappr_ser	98
check_kernel	63
checkp	2322327
chinese	5495
chinese1	2415
chinese1_coprime_Z	2413835
chinese1_coprime_Z_aux	2191779
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56850
factorial_Fp	382
fibo	7
gboundcf	3142307
gc_chinese	1015477
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2416251
gener_Zp	259
get_Fp_field	6963
get_PHI	98
gome	5598065
hilbert	62314
hilbertii	140826
icopy_lg	3136994
init_montdata	663245
intmod2polmod	21
is_gener_Fl	1628686
is_gener_Fp	13969
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40033
kroiu	27620069
kronecker	11958044
krosi	143239
kross	97704223
kroui	35718
krouodd	178957
krouu	98838848
krouu_s	228175120
lcmii	53355241
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	496574
mphilbertoo	7329
mpprimorial	105
muls_interval	623
mulu_interval	159088
mulu_interval_step	90617
ncV_chinese_center	10221
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1526164
nmV_chinese_center	420751
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	142001
nmV_polint_center_tree	420751
nmV_polint_center_tree_seq	142001
nmV_polint_center_tree_worker	990453
nonsquare1_Fl	11626557
nonsquare_Fl	7930
nonsquare_Fp	1413
nxCV_chinese_center	0
nxCV_chinese_center_tree	0
nxCV_polint_center_tree	5190
nxMV_chinese_center	97
nxMV_chinese_center_tree_seq	453
nxMV_polint_center_tree	97
nxMV_polint_center_tree_seq	453
nxMV_polint_center_tree_worker	1008
nxV_chinese_center	422030
nxV_chinese_center_tree	220113
nxV_polint_center_tree	741338
odd_prime_divisors	1812
ome	321309066
opt_param	63
padic2mod	21
pgener_Fl	575246
pgener_Fl_local	1051377
pgener_Fp	44247
pgener_Fp_local	358498
pgener_Zl	205731
pgener_Zp	170975
pnqn	0
polint_chinese	420848
remove2	1812
rootsof1_Fl	215524
rootsof1_Fp	0
rootsof1u_Fp	3033
rt	169813
serPade	49
sersfcont	0
sfcont2	14
sqrt_Cipolla	0
sqrt_Cipolla_msqr	0
sqrt_Cipolla_sqr	0
to_ZX	1202688
tr	59731
u_chinese_coprime	1587176
u_chinese_post	1587200
u_is_gener_expo	531381
u_odd_prime_divisors	464110
u_remove2	464110
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16