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 30504-e6f76a2795) Lines: 2080 2301 90.4 % Date: 2025-09-29 09:23:05 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	193776
Fl_2gener_pre_i	65765
Fl_2powu	4359102
Fl_2powu_pre	12942466
Fl_lgener_pre_all	148214
Fl_log	132390
Fl_log_Fp	0
Fl_log_naive	132390
Fl_log_naive_pre	29056
Fl_log_pre	29454
Fl_order	542782
Fl_powers	296057
Fl_powers_pre	13113230
Fl_powu	141587859
Fl_powu_pre	165543181
Fl_sqrt	12489629
Fl_sqrt_i	12610547
Fl_sqrt_pre	22636338
Fl_sqrt_pre_i	35322950
Fl_sqrtl	0
Fl_sqrtl_pre	233561
Fl_sqrtl_raw	236403
Fl_sqrtn	232514
Fl_sqrtn_pre	232515
FpV_prod	497
Fp_2gener	3327
Fp_2gener_all	5916
Fp_2gener_i	19392
Fp_easylog	8819064
Fp_factored_order	70
Fp_gausssum	363
Fp_invgen	6089034
Fp_invmBarrett	15403
Fp_log	4259278
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	56886
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30239
Fp_log_use_index	5039419
Fp_order	132354
Fp_pow	37760982
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346195
Fp_powu	1755856
Fp_rem_mBarrett	9735827
Fp_rootsof1	846
Fp_select_red	880805
Fp_sqrt	4845925
Fp_sqrt_i	4904406
Fp_sqrt_ii	80245
Fp_sqrtn	173548
Fp_sqrts	18505
Qsfcont	3137414
ZMV_producttree	0
ZM_nv_mod_tree	214990
ZM_nv_mod_tree_t	220447
ZT_sqr	13619798
ZVV_nv_mod_tree	5457
ZV_allpnqn	894831
ZV_chinese	5141
ZV_chinese_center	157293
ZV_chinese_tree	40751712
ZV_chinesetree	2631557
ZV_invdivexact	2631565
ZV_nv_mod_tree	1234340
ZV_producttree	2636234
ZV_sqr	2631563
ZXC_nv_mod_tree	5634
ZXM_nv_mod_tree	491
ZXX_nv_mod_tree	254886
ZX_nv_mod_tree	3106409
Z_ZV_mod	0
Z_ZV_mod_tree	58158826
Z_chinese	2142
Z_chinese_all	267623
Z_chinese_coprime	544091
Z_chinese_post	3069233
Z_chinese_pre	271342
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175565
_Fp_equal0	260724
_Fp_inv	34307
_Fp_mul	14228411
_Fp_neg	1086846
_Fp_one	47162
_Fp_pow	28602557
_Fp_rand	167
_Fp_red	889913
_Fp_rmul	575346
_Fp_s	19075
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	10517878
_mul2_remii	4307987
_mul2_remiibar	2115746
_mul_montred	7093935
_mul_remii	1827721
_mul_remiibar	842605
_psi	1714
_sqr_montred	67724621
_sqr_remii	26697506
_sqr_remiibar	8893222
addifsmooth1	2163
addifsmooth2	83825
bestappr	105403
bestapprPade	119
bestapprPade0	126
bestappr_Q	2285913
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1271057
bestappr_ser	98
check_kernel	63
checkp	2600267
chinese	5495
chinese1	2415
chinese1_coprime_Z	2460580
chinese1_coprime_Z_aux	2253539
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56858
factorial_Fp	382
fibo	7
gboundcf	3142391
gc_chinese	980348
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2462995
gener_Zp	259
get_Fp_field	6963
get_PHI	98
gome	5891469
hilbert	62314
hilbertii	140826
icopy_lg	3137064
init_montdata	667806
intmod2polmod	21
is_gener_Fl	1662688
is_gener_Fp	13982
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40089
kroiu	27630905
kronecker	12751279
krosi	159626
kross	101947420
kroui	35344
krouodd	194970
krouu	101517089
krouu_s	235917403
lcmii	54529926
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	497239
mphilbertoo	7329
mpprimorial	105
muls_interval	623
mulu_interval	159076
mulu_interval_step	92783
ncV_chinese_center	10565
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1514853
nmV_chinese_center	377887
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	120301
nmV_polint_center_tree	377887
nmV_polint_center_tree_seq	120301
nmV_polint_center_tree_worker	974759
nonsquare1_Fl	12207009
nonsquare_Fl	7930
nonsquare_Fp	1460
nxCV_chinese_center	0
nxCV_chinese_center_tree	0
nxCV_polint_center_tree	6585
nxMV_chinese_center	104
nxMV_chinese_center_tree_seq	491
nxMV_polint_center_tree	104
nxMV_polint_center_tree_seq	491
nxMV_polint_center_tree_worker	1225
nxV_chinese_center	429360
nxV_chinese_center_tree	304225
nxV_polint_center_tree	876026
odd_prime_divisors	1812
ome	330875288
opt_param	63
padic2mod	21
pgener_Fl	575260
pgener_Fl_local	1081322
pgener_Fp	44282
pgener_Fp_local	412299
pgener_Zl	205745
pgener_Zp	170989
pnqn	0
polint_chinese	377991
remove2	1812
rootsof1_Fl	215543
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	1893738
tr	59731
u_chinese_coprime	1636831
u_chinese_post	1636842
u_is_gener_expo	545150
u_odd_prime_divisors	464143
u_remove2	464143
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16