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 - Qfb.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30849-48ff4d246c) Lines: 1108 1229 90.2 % Date: 2026-05-01 09:26:53 Functions: 133 143 93.0 % Legend: Lines: hit not hit

Function Name	Hit count
GL2_qfb_equal	61068
Qfb0	77231
REDB	2776818
REDBU	14162375
SL2_div_mul_e1	344315
_qfimul	9394674
_qfimulraw	7
_qfisqr	24448280
_qfisqrraw	7
ab_isreduced	17712973
allsols	48039
check_qfbext	2093466
check_quaddisc	203513
check_quaddisc_imag	2184
check_quaddisc_real	6916
cornacchia	55267
cornacchia2	1381122
cornacchia2_i	1415783
cornacchia2_sqrt	35483
dvmdii_round	16939191
dvmdsu_round	119137219
famat_divsqr	5299
fix_expo	10217928
is_minimal	2046352
is_qfi	814212
known_prime	1862981
lastqi	1415831
lti2n	4940497
mul_nucomp	4739
mul_nudupl	11606
normforms	2620769
nucomp	400722
nudupl	11648
nupow	1008
parteucl	412328
pqfbred_1	1921185
pqfbred_basecase	61492
pqfbred_iter_1	124020
pqfbred_rec	124020
primeform	135571
primeform_u	14995443
qfb3	139081
qfb3_SL2_apply	61913
qfb_1	0
qfb_comp	75020411
qfb_comp_gen	84
qfb_equal	23783629
qfb_initrd	2838550
qfb_inv	1030199
qfb_maxexpi	97533952
qfb_minexpi	125056
qfb_sqr	26639864
qfbcomp	137645
qfbcomp_i	38312080
qfbcompraw	2198
qfbcompraw_i	0
qfbcornacchia	7630
qfbinv	7
qfbpow	1591114
qfbpow_i	10693125
qfbpowraw	21
qfbpows	1437163
qfbred	91883
qfbred0	93696
qfbred_i	11533222
qfbredsl2	519893
qfbsolve	2838559
qfbsolve_all	10227
qfbsolve_primitive	2828326
qfbsolve_primitive_i	2843855
qfbsqr	128962
qfbsqr_i	694003
qfi_1	750903
qfi_1_by_disc	762973
qfi_red	19000666
qfi_red_1	92203704
qfi_red_1_b0	982405
qfi_red_av	91827739
qfi_red_basecase_av	92345996
qfi_red_fast	97224042
qfi_redsl2	5191303
qfi_redsl2_basecase	6781644
qfi_rho	7
qficomp0	72288760
qfipow	12284125
qfipowraw	7
qfisolve_normform	1445672
qfisolvep	0
qfisolvep_all	223083
qfisqr0	822930
qfr3_1	0
qfr3_comp	1009397
qfr3_compraw	1009397
qfr3_init	371
qfr3_pow	4557
qfr3_powraw	0
qfr3_red	1172847
qfr3_rho	1139446
qfr3_to_qfr	31920
qfr5_1	0
qfr5_comp	1735216
qfr5_compraw	1735230
qfr5_dist	184688
qfr5_init	140
qfr5_pow	21
qfr5_powraw	7
qfr5_red	1952895
qfr5_rho	8486681
qfr5_to_qfr	483
qfr_1	35
qfr_1_by_disc	6867
qfr_1_fill	0
qfr_data_init	2170
qfr_disc	35
qfr_red	0
qfr_red_av	63
qfr_red_basecase_i	427
qfr_red_i	427
qfr_redsl2	209575
qfr_redsl2_basecase	979701
qfr_rhosl2	10810674
qfr_rhosl2_i	13379357
qfr_to_qfr5	217728
qfrcomp0	441
qfrinvraw	7
qfrpow	112
qfrpowraw	14
qfrsolve_normform	770126
qfrsolvep	0
qfrsqr0	35
qfsolve_normform	2215798
quadgen	0
quadgen0	602
quadpoly	2065
quadpoly0	1050
quadpoly_bc	1008498
quadpoly_i	243467
quadpoly_ii	245525
redimagsl2	4880990
rho_get_BC	14152531
sREDB	119118258
setq	91187708
setq_b0	1134759

Generated by: LCOV version 1.16